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The aim of this study was to evaluate the effects of different levels of bee pollen in the diet of growing Japanese quails on productive performance, relative weight of the gastrointestinal organs and length of small and large intestines. A total of 650 one-day-old female Japanese quails were distributed in a completely randomized design with five treatments according to the dietary levels of bee pollen (0.0, 0.4, 0.8, 1.2, and 1.6%), five replicates, and 26 birds per experimental unit. At the end of the experimental period (35 days of age), the performance and relative weight of the gastrointestinal organs and length of small and large intestines were evaluated. The dietary inclusion of bee pollen did not influence (P > 0.05) performance, relative weight of proventriculus, gizzard, pancreas, liver, and large intestine, as well as the length of small and large intestines. However, a linear reduction (P < 0.05) was observed in the relative weight of small intestine as dietary bee pollen levels increased. The inclusion of bee pollen from 0.4 to 1.6% in the diet of growing Japanese quails did neither improve productive performance nor alter the biometry of digestive organs. O objetivo deste estudo foi avaliar os efeitos de diferentes níveis de pólen apícola nas dietas de codornas japonesas em crescimento sobre o desempenho produtivo, peso relativo dos órgãos do trato gastrointestinal e comprimento do intestino delgado e grosso. Um total de 650 codornas japonesas, fêmeas, de um dia de idade, foram distribuídas em um delineamento inteiramente casualizado com cinco tratamentos de acordo com os níveis dietéticos do pólen apícola (0,0; 0,4; 0,8; 1,2 e 1,6%), cinco repetições e 26 aves por unidade experimental. Ao final do período experimental (35 dias de idade), o desempenho e o peso relativo dos órgãos do trato gastrointestinal e o comprimento do intestino delgado e grosso foram avaliados. A inclusão dietética de pólen de abelha não influenciou (P > 0,05) o desempenho, peso relativo do proventrículo, moela, pâncreas, fígado e intestino grosso, bem como o comprimento do intestino delgado e intestino grosso. Entretanto, uma redução linear (P < 0,05) foi observada no peso relativo do intestino delgado de acordo com o aumento dos níveis de pólen apícola. A inclusão dietética de 0,4 a 1,6% de pólen apícola para codornas japonesas em crescimento não melhorou o desempenho produtivo e não alterou a biometria dos órgãos digestivos.

The aim of this study is to investigate the effect of added to mixture essential oil consist of mint oil, juniper oil, rosemary oil and oregano vulgare oil added in drinking water at on intestinal health in quail breeders. A total of 160 Japanese quail breeders (control group each subgroup 6 females 6 males, experimental groups each subgroup 5 females 5 males) 17 weeks of age were randomly divided into 3 treatment groups and each group was divided into 5 replicates. The experimental period lasted 56 days. Maize and soybean meal-based diets were offered ad libitium to the birds from during the experimental period. Treatments were as follows: C, (Control; without supplementation to the drinking water); E1 (0,1ml/L essential oil mixture supplementation to the drinking water) and E2 (0,3ml/L essential oil mixture supplementation to the drinking water. Acetic acid, butyric acid, isocaproic acid and SCFA values were linearly affected by the increasing level of essential oil mixture (mint oil, juniper oil, rosemary oil and oregano vulgare oil). There were no significant differences in propionic acid, isobutyric acid, valeric acid, isovaleric acid, caproic acid and BCFA concentrations. In conclusion, essential oil mixture consists of mint oil, juniper oil, rosemary oil and oregano vulgare oil can be used to improve intestinal health in quail breeders drinking water.

Background: Kaolin may improve quail performance by maintaining intestinal integrity and improving nutrient absorption. Objective: To evaluate the overall performance, egg quality, moisture, nitrogen and calcium content in the excreta, intestinal morphology and financial analysis of kaolin in Japanese quail feed during the production phase. Methods: A total of 192 Japanese quails, distributed in a completely randomized design with four treatments and six repetitions with eight birds each, were used. Kaolin levels added to the diet were 0, 1.5, 3.0, and 4.5%. Results: Kaolin reduced feed consumption. Additionally, egg production, feed conversion and viability increased. Moisture, nitrogen and calcium in the excreta decreased. Height and width of the intestinal villi increased with increasing levels of kaolin in the diet. Kaolin had no effect on egg quality. Inclusion level of 1.5% kaolin allowed for greater economic gains. Conclusion: Kaolin improved performance, intestinal morphology, and reduced the moisture, nitrogen and calcium contents in the excreta. Egg quality remained unchanged with the addition of kaolin, and the best economic response resulted with the addition 1.5% kaolin.

Quail is one of the potential sources of animal protein from poultry as egg producers. An egg contains complete nutrients, namely protein, fat, vitamins, and minerals. As food, eggs must be maintained both physically and chemically to be safe for consumption. This study aimeds to examine the effect of selective feeding on the quality of quail eggs. This research was carried out at Percut Sei Tuan Subdistrict, Deli Serdang Regency, North Sumatra, which had been implemented from August to November in 2018. The study used a completely randomized design with 4 treatments and 5 plots. The study used egg samples from quail aged five (5) months. The treatment consists of Commercial feed (T0), 2 energy source feed (rice bran, corn) with 2 (T1), 3 (T2), 4 (T3) protein source feeds (fish meal, soybean meal, coconut meal, Poultry Meat Meal). The results showed that the treatment gave a significant effect (P0.05) among treatment. It can be concluded that the commercial feed showed higher egg weight but had no significant effect (P>0.05) on the proportion of eggs and the interior quality of quail eggs, while among free choicee feeding treatment has no effect.

Made available in DSpace on 2018-11-26T16:04:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-04-01. Added 1 bitstream(s) on 2019-10-09T18:25:29Z : No. of bitstreams: 1 S1516-635X2018000200351.pdf: 135539 bytes, checksum: 783bd2f9c1f8ee9ccff5c9a52562c60c (MD5) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) This study was conducted to determine the optimal standardized ileal digestible arginine to lysine (SID Arg:Lys) ratio for Japanese quails in the egg-laying phase. A total of two hundred forty-five 35-weekold Japanese quails (181 +/- 1.30 g initial body weight) were randomly assigned to five treatment groups with seven replicates of seven quails. Graded levels of L-Arginine were added to a basal diet in order to produce five SID Arg:Lys ratios (101, 106, 111, 116 and 121 %). Collected data were analyzed as one-way AN OVA and optimal ratio was estimated using polynomial regression model (linear and quadratic) based on performance traits. Statistical differences were considered for p

The utility of canola meal as protein source for quails may be limited by trypsin inhibitors that interfere with protein digestion. This study was, therefore, designed to assess the effect of including a heat-stable protease mono-enzyme (75’000 PROT/g; EC/IUB no. 3.4.21) in canola meal-containing diets on physiological and meat quality traits of adult female Japanese quails. A total of 240, five-week old quails (163.9 ± 9.56 g live-weight) were distributed into 30 replicate pens, to which five isocaloric and isonitrogenous diets were randomly allocated. The diets were: control diet (CON; a commercial grower mash with no canola meal (CM) inclusion); control diet in which 17.5% of soybean ingredients were replaced with CM (CM0), and CM0 diet treated with 0.01%, 0.02% or 0.03% of protease (CM01, CM02 and CM03, respectively). Quails were slaughtered at 10 weeks of age. There was no week × diet interaction effect on average weekly feed intake (AWFI), average weekly weight gain (AWG) and feed conversion efficiency (FCE). Protease inclusion had no effect on haemo-biochemical parameters, overall growth performance, internal organs, carcass characteristics, and meat quality parameters. It was concluded that inclusion of protease does not improve the utilization of CM-containing diets in adult female Japanese quails.

The efficient time for supplementing flaxseed oil to meat-type quail to produce n-3 fatty acid fortified meat has not been determined. This study was conducted to find out the effects of different periods of flaxseed oil supplementation in the Japanese quail diet on the subsequent growth performance, carcass characteristics, fatty acids profile of breast, and functional properties of the Japanese quail meat. Totally, 720 one-day-old Japanese quail were studied in a 35-day experiment using a completely randomized design. Substituting sunflower oil with flaxseed oil had no significant effect on weight gain and feed intake in Japanese quails. Supplementing flaxseed oil for the whole 35-day growth period significantly reduced abdominal fat proportion. Flaxseed oil addition to the quail diet just a week before slaughter resulted in a 4.97-fold increase in the n-3 fatty acid content of the breast muscle. Feeding flaxseed oil decreased the activity of delta-9-desaturase in quail's breast compared to sunflower oil. The greatest thrombogenic index observed in the breast meat from control while consumption of flaxseed oil significantly decreased the thrombogenic index. Supplementing flaxseed oil to quail's diet for 21 and 35 days before slaughter significantly increased breast malondialdehyde content. Feeding flaxseed oil for long periods had no significant impact on the breast meat pH while water holding capacity was decreased. The breast lightness was increased when the flaxseed oil was fed for longer periods. Generally, feeding flaxseed oil in the last week of the growth period improved the feed conversion ratio and the fatty acid profile of quail breast meat with the minimum deterioration effects on meat quality characteristics.

Foram estudados parâmetros de incubação e de qualidade física de codornas japonesas neonatas oriundas de ovos submetidos a diferentes condições de armazenamento. Os tratamentos constituíram-se de combinações entre temperaturas e períodos de armazenamento dos ovos férteis. O delineamento foi em blocos casualizados em arranjo fatorial 2x5, temperaturas (ambiente (28±1,5ºC) e refrigerada (14ºC)) x períodos de armazenamento (um, três, seis, nove ou doze dias), totalizando 10 tratamentos com 105 repetições, sendo cada ovo uma unidade experimental. Os ovos foram incubados nas condições de 37,9ºC e 60% de umidade relativa (UR). Houve aumento de perda de peso do ovo com o período de armazenamento, com efeito linear positivo. Observou-se maior taxa de eclosão/ovos férteis para os ovos armazenados sob refrigeração. Houve efeito linear negativo para o período de armazenamento sobre a taxa de eclosão somente para os ovos armazenados em 28ºC. Para o peso da codorna neonata, houve efeito linear negativo, independentemente da temperatura de armazenamento. O comprimento do intestino delgado em temperatura ambiente sofreu influência do período de armazenamento, sendo que o período de 12 dias apresentou pior resultado. O pior escore de qualidade física foi encontrado em codornas neonatas oriundas de ovos armazenados em temperatura ambiente por 12 dias. Pode-se concluir que, para melhorar a eclosão e a qualidade física da progênie, ovos de codorna devem ser armazenados por até nove dias e em temperatura de 14ºC. ABSTRACT Incubation parameters and physical quality of neonate Japanese quails hatched from eggs that were subject to different storage conditions were evaluated. The treatments consisted of a combination of temperatures and storage periods of hatching eggs from breeder quails. The experiments were conducted in a randomized block design in a factorial arrangement 2x5, with two storage temperatures (ambient temperature ± 28°C and refrigerated temperature 14°C) and five storage periods (one, three, six, nine and twelve days), totaling 10 treatments with 105 repetitions, each egg considered to be an experimental unit. The eggs were incubated at 37.9°C with 60% of relative humidity (RH). There was a positive linear effect between egg weight loss and storage period. Higher rates of hatching/fertile eggs were observed for eggs stored in refrigerated conditions. A negative linear effect was observed between storage period and hatching rate when the eggs where stored at a temperature of 28ºC. There was a negative effect for neonate quail weight, independent of storage temperatures. The intestine length was influenced by storage period and 12 days of storage showed the shortest intestine length. Lower scores of physical quality were observed in quails that hatched from eggs stored in ambient temperatures during 12 days. In this context, to improve hatching rates and physical quality of neonate quails the eggs should be stored up to nine days at a temperature of 14°C.

A study was conducted in order to estimate the sodium requirements of Japanese laying quail (Coturnix coturnix japonica). In this study, we used 280 Japanese quails at 128 days of age, with an average weight of 9 ± 5.2 g, and an egg production rate of 82.3 ± 0.94%. An experimental design methodology was employed, completely randomized with five treatments and seven replications. Each replicate consisted of eight quails, with a total of thirty-five experimental units. The experimental diets were based on corn and soybean meal, and contained five different levels of sodium (0.08%, 0.12%, 0.16%, 0.20% and 0.24%). The diets were isocaloric and contained equal concentrations of amino acids, with an electrolyte balance of 250 mEq/kg. The parameters we evaluated were feed intake (g/quail/day); egg production per quail per day (%); egg weight (g); egg mass (g/quail/day); and feed conversion by egg mass (kg/kg) and per dozen eggs (kg/dz). In addition, we evaluated the composition of the eggs in terms of the absolute (g) and relative (%) mass of the yolk, albumen and eggshell. We also measured the body weight variation (g) and viability (%) of the quails. There were no significant effects (p>0.05) on the described parameters. No nutritional disorders occurred related to the level of inclusion of sodium in the diets. The inclusion of 0.08% sodium in the diet of laying Japanese quails was satisfactory to maintain egg production and quality without losses in feed intake or feed conversion. El experimento se realizó para estimar el requerimiento nutricional de sodio (Na) para codornices japonesas en postura (Coturnix coturnix japonica). En este estudio, se utilizaron 280 codornices japonesas a los 128 días de edad, con un peso promedio de 9 ± 5.2 g, y una tasa de producción de huevos de 82.3 ± 0.94%. Las aves se distribuyeron en un diseño experimental completamente al azar, con cinco tratamientos y siete repeticiones, con ocho codornices por repetición, totalizando treinta y cinco unidades experimentales. Las dietas experimentales se basaron en harina de maíz y soya y contenían cinco niveles diferentes de sodio (0.08%, 0.12%, 0.16%, 0.20% y 0.24%). Las dietas eran isocalóricas y contenían concentraciones de aminoácidos iguales con un equilibrio electrolítico de 250 mEq / kg. Los parámetros evaluados fueron: ingesta de alimento (g / codorniz / día); producción de huevos por codorniz por día (%); peso del huevo (g); masa de huevo (g / codorniz / día); y conversión de alimento por masa de huevo (kg / kg) y por docena de huevos (kg / dz). Además, la composición del huevo se evaluó en términos de masa absoluta (g) y relativa (%) de yema, albúmina y cáscara de huevo y la variación del peso corporal de la codorniz (g) y la viabilidad (%). No hubo efecto significativo (p> 0.05) en los parámetros descritos. No hubo trastornos nutricionales relacionados con el nivel de inclusión de sodio en las dietas. La inclusión de sodio al 0.08% en la dieta de las codornices japonesas fue satisfactoria para mantener la producción y calidad del huevo sin pérdida en la ingesta de alimento o la conversión de alimento. O experimento foi realizado para estimar a exigência nutricional de sódio (Na) para codornas japonesas em postura. (Coturnix coturnix japonica). Neste estudo, foram utilizadas 280 codornas japonesas aos 128 dias de idade, com peso médio de 9 ± 5,2 g e taxa de produção de ovos de 82,3 ± 0,94%. As aves foram distribuídas em um delineamento experimental inteiramente casualizado, contendo cinco tratamentos e sete repetições, com oito codornas por repetição, totalizando trinta e cinco unidades experimentais. As dietas experimentais foram baseadas em farelo de milho e soja e continham cinco níveis diferentes de sódio (0,08%, 0,12%, 0,16%, 0,20% e 0,24%). As dietas eram isocalóricas e continham concentrações iguais de aminoácidos, com balanço eletrolítico de 250 mEq/kg. Os parâmetros avaliados foram: consumo de ração (g/codorna/dia); produção de ovos por codorna por dia (%); peso do ovo (g); massa de ovos (g/codorna/dia); e conversão alimentar por massa de ovo (kg/kg) e por dúzia de ovos (kg/dz). Além disso, foram avaliados a composição dos ovos em termos da massa absoluta (g) e relativa (%) da gema, albumina e casca de ovo e a variação do peso corporal (g) e viabilidade (%) das codornas. Não houve efeito significativo (p>0,05) nos parâmetros descritos. Não ocorreram distúrbios nutricionais relacionados ao nível de inclusão de sódio nas dietas. A inclusão de 0,08% de sódio na dieta de codornas japonesas em postura foi satisfatória para manter a produção e a qualidade dos ovos sem perdas no consumo ou conversão alimentar.

International audience; The positive aspect of emotions, like pleasure, remains overlooked in birds. Our aim was to contribute to the exploration of facial indicators of positive emotions. To observe contrasting emotional expressions, we used two lines of Japanese quail divergently selected on their inherent fearfulness: a fearful line (long tonic immobility duration: LTI) and a less fearful line (short tonic immobility duration: STI). To induce positive emotions, we gave individual quail the opportunity to perform a rewarding behaviour, dustbathing, in an unfamiliar cage. More STI than LTI quail expressed dustbathing and latencies to dustbathe were significantly shorter in STI than LTI quail. This result indicated that the lines of quail differed in their fearfulness of the situation. We observed crown feather height, throat feather angle and pupil surface before (control) and during dustbathing. We found significant increases in crown feather height, pupil area and angle of throat feathers between the control and the dustbathing phases in STI quail, and pupil area correlated positively with crown feather height. In LTI quail, the angle of throat feathers increased during dustbathing, but the other parameters did not differ. We argue that variation in crown feather height and pupil area may provide indications of positive emotions in Japanese quail.

O experimento foi realizado para estimar a exigência nutricional de sódio (Na) para codornas japonesas em postura. Foram utilizadas 245 codornas japonesas, com 187 dias de idade, peso de 189,4 + 6,1 g e taxa de produção de ovos de 91,05 + 5,5 %. As aves foram distribuídas em delineamento experimental inteiramente casualizado, constituído por cinco rações e sete repetições. Foram formuladas cinco rações experimentais à base de milho e farelo de soja, com cinco níveis de Na (0,10; 0,15; 0,20; 0,25 e 0,30%). Foram analisados: consumo de ração, produção de ovos por ave ao dia, por ave alojada, de ovos comercializáveis, de ovos viáveis por ave ao dia, peso do ovo, massa de ovos, conversão alimentar por massa de ovos e por dúzia de ovos, componentes dos ovos (gema (g e %), albúmen (g e %) e casca (g e %), variação de peso corporal, viabilidade das aves e gravidade específica. Não foi verificado efeito (P>0,05) para nenhum dos parâmetros estudados. Sintomas de deficiência de sódio como inapetência, redução da taxa de crescimento, produção e apetite depravado não foram observados, demonstrando que o menor nível de sódio utilizado, 0,10%, não foi prejudicial às aves. A suplementação de 0,10% de sódio na ração, correspondente ao consumo diário de 26,1 mg de Na por ave foi suficiente para proporcionar satisfatório desempenho produtivo e qualidade dos ovos de codornas japonesas. The experiment was conducted to estimate the nutritional requirement of sodium (Na) for laying Japanese quails. Were used 245 Japanese quails, with 187 days old, weight of 189.4 + 6.1 g and egg production rate of 91.05 + 5.5%. Birds were distributed in a completely randomized design, consisting of five diets and seven replicates. Five experimental diets were formulated based on corn and soybean meal, with five levels of Na (0.10, 0.15, 0.20, 0.25 and 0.30%). Were examined: feed intake, egg production per bird day, egg production per hen housed, commercial eggs, viable eggs per bird day, egg weight, egg mass, feed conversion by egg mass and per dozen eggs, components eggs (yolk, albumen and shell), body weight variation, viability of birds and specific gravity. There were no differences (P>0.05) for all parameters studied. Symptoms of deficiency as inappetence, reduction in the growth rate and depraved appetite were not observed in this study, demonstrating that the lower level of Na used, 0.10%, was not adverse to birds. Supplementation of 0.10% Na in diet of the birds, corresponding to a daily intake of 26.1 mg / bird was enough to provide good performance and egg quality of Japanese quails.

Genetic evaluations in dual-purpose quails (Coturnix coturnix) have demonstrated that overall genetic gains in a breeding program are achieved not only based on a specific trait, but on several. The most common technique to use all this information is the selection index. Another alternative may be the canonical-correlation analysis applied to selection index. There is, however, a lack of studies using canonical correlation in quails. Hence, the objectives of this study were to apply canonical-correlation analysis to estimate the relationship of nine traits and to compare genetic gains obtained by this methodology to desired-gain selection index in three lines of quails. Data for three lines of layer quails consisted of body weight at 28 days (W28), egg weight (EW), age at first egg (APE) and egg production at 30, 60, 90, 120, 150 and 180 days after onset of lay. Two sets of traits were established: the first one contained predictor variables (W28, EW and APE) and the second one contained variables related to egg production. A selection index was constructed using the standardized coefficients of canonical covariates as weighting factors when a given canonical correlation was significant. We constructed two desired-gain selection indices: DG-SI1 and DG-S12. The difference between them is that DG-S12 had a desired gain for body weight set to 0. The estimated canonical correlations were as follows: 0.811, 0.058 and 0.003 for the yellow, 0.821, 0.181 and 0.076 for the red, and 0.825, 0.117 and 0.038 for the blue line. Only the first pair of canonical variates was significant (P

Objetivou-se avaliar os benefícios da adição da parede celular de Sacharomyces cerevisiae (PCSC) e seu melhor nível de inclusão na dieta sobre o desempenho e a qualidade dos ovos produzidos por codornas japonesas (Coturnix coturnix japonica) na fase de produção. Foram utilizadas 400 codornas japonesas distribuídas em um delineamento inteiramente casualizado, com cinco tratamentos e 10 repetições com 8 aves cada. Foram utilizadas cinco dietas com diferentes níveis de parede celular de S. cerevisiae (0 kg/t; 0.5kg/t; 1.0kg/t; 1.5kg/t; 2.0kg/t). Para análise do desempenho das aves e da qualidade dos ovos, as variáveis avaliadas foram: o consumo de ração, a produção de ovos, o peso médio dos ovos, a massa de ovos, a conversão alimentar por massa, a conversão alimentar por dúzia de ovos produzidos, a viabilidade, a percentagem dos constituintes do ovo (gema, albúmen e casca) e a espessura de casca. O peso dos ovos, a massa de ovos, a viabilidade, a percentagem da gema e a percentagem do albúmen não foram influenciadas pela inclusão de parede celular de S. cerevisiae na dieta das codornas japonesas. A inclusão de níveis crescentes de parede celular de S. cerevisiae até o nível de 1,5kg/t na dieta melhorou a produção, a conversão alimentar por dúzia, a conversão alimentar por massa e a qualidade da casca de ovos produzidos por codornas japonesas durante a fase de produção. Aimed to evaluate the benefits of adding the cell wall of Saccharomyces cerevisiae (CWSC) and its best level in the diet on the performance and quality of eggs produced by Japanese quail (Coturnix coturnix japonica), during the production phase. 400 Japanese quails, were distributed in a complete random design, with five treatments and 10 replicates with 8 birds each. It was used five diets with different levels of cell wall of S. cerevisiae (0 kg/t; 0.5kg/t; 1.0kg/t; 1.5kg/t; 2.0kg/t). To analyze the performance of birds and egg quality, the variables evaluated were: feed intake, egg production, egg weight, egg mass, feed conversion per dozen of eggs produced, feed conversion per mass of eggs produced, viability, percentage of the yolk, percentage of the albumen, percentage of the shell and shell thickness. Egg weight, percentage of yolk and percentage of albumen were not influenced by the inclusion of cell wall of S. cerevisiae in the diet of Japanese quails. The increasing levels of cell wall of S. cerevisiae to the level of 1.5kg/t in the diet improved production, feed conversion per dozen, feed conversion per mass and shell quality of eggs produced by Japanese quail during the production phase.

International audience; Brood care can improve with experience, and experience under natural conditions increases with age. We aimed to evaluate the relative effect of experience by comparing experienced and inexperienced females of the same age under controlled conditions. Using 18 experienced (XP) and 22 inexperienced (NXP) female Japanese quail, Coturnix coturnix japonica. of the same age, we monitored maternal behaviour towards foster chicks. We evaluated the social and emotional reactivity of these females before the breeding period and of the fostered chicks after separation from their mothers. Thus, we determined both how maternal experience affects adult females' nonmaternal behaviour and how potential differences in their maternal behaviour affect chicks' behavioural development. We found that although previous breeding experience per se did not influence either their general fearfulness or their sociality, it did influence the way females coped with novelty. Although most of the maternal care variables did not differ significantly between XP and NXP females, we found several differences, mainly concerning first-time female breeders' more abusive behaviour during the first few days of the breeding period. We suggest that these differences in care are related more to inexperienced females' higher neophobia than to an improvement in the quality of care with experience. In tests, chicks showed differences similar to those of their mothers: chicks brooded by inexperienced females reacted more to novelty than chicks brooded by experienced females. We consider this result to be a case of nongenomic maternal transmission. (C) 2013 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:40:21Z No. of bitstreams: 1 S1516-635X2013000100010.pdf: 674758 bytes, checksum: e1467f940779325eee60ab095cf63094 (MD5) Made available in DSpace on 2013-08-22T18:40:21Z (GMT). No. of bitstreams: 1 S1516-635X2013000100010.pdf: 674758 bytes, checksum: e1467f940779325eee60ab095cf63094 (MD5) Previous issue date: 2013-03-01 Made available in DSpace on 2013-09-30T19:25:48Z (GMT). No. of bitstreams: 2 S1516-635X2013000100010.pdf: 674758 bytes, checksum: e1467f940779325eee60ab095cf63094 (MD5) S1516-635X2013000100010.pdf.txt: 26277 bytes, checksum: b660c3f8361a13a158e818150883f69d (MD5) Previous issue date: 2013-03-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:07:16Z No. of bitstreams: 2 S1516-635X2013000100010.pdf: 674758 bytes, checksum: e1467f940779325eee60ab095cf63094 (MD5) S1516-635X2013000100010.pdf.txt: 26277 bytes, checksum: b660c3f8361a13a158e818150883f69d (MD5) Made available in DSpace on 2014-05-20T15:07:17Z (GMT). No. of bitstreams: 2 S1516-635X2013000100010.pdf: 674758 bytes, checksum: e1467f940779325eee60ab095cf63094 (MD5) S1516-635X2013000100010.pdf.txt: 26277 bytes, checksum: b660c3f8361a13a158e818150883f69d (MD5) Previous issue date: 2013-03-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) The objective of this study was to trace the inclusion of bovine meat and bone meal (BMBM) in the diet of Japanese quails by analyzing eggs and egg fractions (yolk and albumen) by the technique of carbon-13 (13C) and nitrogen-15 (15N) stable isotopes. In the trial, 120 Japanese quails were distributed in six treatments with four replicates of five birds each. The following treatments were applied: feed based on corn and soybean meal, containing graded BMBM inclusions (0, 1, 2, 3, 4 or 5%). After 42 days, 20 eggs per treatment were randomly collected for three consecutive days. Ten eggs were used for yolk and albumen sample collection, and ten for total egg sample collection. It was possible to detect the dietary inclusion of 1% BMBM in the egg and its fractions. Therefore, the technique of isotopes 13C and 15N is able of tracing since 1% inclusion level of BMBM in the diet of Japanese quails in eggs and their fractions. UNESP UNESP IBB Department of Physics and Biophysics Agência Paulista de Tecnologia dos Agronegócios DVM - Granjas Kakimoto UNESP UNESP IBB Department of Physics and Biophysics FAPESP: 07/06707-8

Avaliou-se a exigência de treonina digestível para a codorna japonesa em postura. Foram utilizadas 400 codornas, durante 63 dias. Utilizou-se delineamento inteiramente ao acaso, com cinco tratamentos, oito repetições e 10 aves por unidade experimental. A dieta basal foi deficiente em treonina, contendo 17,8% de proteína bruta, 2.900kcal de EM/kg, sendo suplementada com quatro níveis de L- treonina 98% (0,000; 0,052; 0,104; 0,156 e 0,208%), correspondendo à relação treonina digestível:lisina digestível de 0,55; 0,60; 0,65; 0,70 e 0,75, respectivamente. Os parâmetros estudados foram: consumo de ração, consumo de treonina, produção de ovo, peso do ovo, massa de ovos, conversão alimentar por massa de ovos, conversão alimentar por dúzia de ovos, componentes dos ovos (gema, albúmen e casca) e gravidade específica. Observou-se aumento linear (P

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:40:20Z No. of bitstreams: 1 S1516-635X2012000100007.pdf: 554012 bytes, checksum: 14a5943ebd640e50659f60b0a9d68b19 (MD5) Made available in DSpace on 2013-08-22T18:40:20Z (GMT). No. of bitstreams: 1 S1516-635X2012000100007.pdf: 554012 bytes, checksum: 14a5943ebd640e50659f60b0a9d68b19 (MD5) Previous issue date: 2012-03-01 Made available in DSpace on 2013-09-30T18:37:57Z (GMT). No. of bitstreams: 2 S1516-635X2012000100007.pdf: 554012 bytes, checksum: 14a5943ebd640e50659f60b0a9d68b19 (MD5) S1516-635X2012000100007.pdf.txt: 24982 bytes, checksum: ee78f8a36a20a6882652d75d6595db1c (MD5) Previous issue date: 2012-03-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:50:30Z No. of bitstreams: 2 S1516-635X2012000100007.pdf: 554012 bytes, checksum: 14a5943ebd640e50659f60b0a9d68b19 (MD5) S1516-635X2012000100007.pdf.txt: 24982 bytes, checksum: ee78f8a36a20a6882652d75d6595db1c (MD5) Made available in DSpace on 2014-05-20T13:50:30Z (GMT). No. of bitstreams: 2 S1516-635X2012000100007.pdf: 554012 bytes, checksum: 14a5943ebd640e50659f60b0a9d68b19 (MD5) S1516-635X2012000100007.pdf.txt: 24982 bytes, checksum: ee78f8a36a20a6882652d75d6595db1c (MD5) Previous issue date: 2012-03-01 Aiming at evaluating the influence of cyclic temperatures on the performance and egg quality of Japanese quails an experiment was carried out with 480 birds after egg production peak. Birds were housed in a bioclimatic chamber with automatic temperature control that contained two rooms, one maintained at thermoneutral temperature (21 ºC) and the other adjusted for the tested cyclic temperatures (24, 27, 30, 33 and 36 ºC at a time). Each room had a battery of five floors and ten cages, with a capacity of 24 birds per cage, totaling 240 birds per battery. Birds were fed iso-nutritious and iso-caloric diets. Data obtained under the tested cyclic temperatures were compared with those obtained under thermoneutral temperature. At the end of each experimental period (14 days) performance and egg quality parameters were evaluated. A completely randomized experimental design with two treatments (thermoneutral temperature and tested temperature) and ten replicates of 24 birds each. Cyclic increases of 27 ºC and higher in environmental temperature negatively affected bird performance, with reduced feed intake and consequent reductions in egg weight and mass. A cyclic increase of the environmental temperature to 36 ºC reduced the percentage of saleable eggs and egg production. UNESP FMVZ UNESP FMVZ Dept. of Animal Production UNESP FMVZ Dept. of Genetic Improvement and Animal Nutrition UNIFENAS Dept. of Animal Science UNESP FMVZ UNESP FMVZ Dept. of Animal Production UNESP FMVZ Dept. of Genetic Improvement and Animal Nutrition

The experiment was conducted to evaluate the addition of phytase on productive performance and egg quality of Japanese quails fed diets containing different levels of phytase. It was used 320 Japanese quails at 167 days of age, weighing 182.3 ± 3.8 g distributed in a completely randomized design with four experimental diets and eight repetitions of ten birds per experimental unit. Diets were formulated from a basal diet (control) and they were corn and soybean meal based, without supplementation, added with 200, 400 or 600 phytase activity unit (ftu). Supplementation of phytase in the diets improved productive performance and quality of eggs. Efficiency of phosphorus use for egg mass, from 0.13% of availability of this mineral in the ration, improved with supplementation of 463 ftu/kg. Optimum levels of phytase for the other performance traits and egg quality were also reached with 463 ftu/kg. O experimento foi realizado para avaliar a adição de fitase sobre o desempenho produtivo e a qualidade dos ovos de codornas japonesas alimentadas com rações contendo diferentes níveis de fitase. Foram utilizadas 320 codornas japonesas, com 167 dias de idade, peso de 182,3 ± 3,8 g, distribuídas em delineamento inteiramente casualizado com quatro dietas experimentais e oito repetições de dez aves por unidade experimental. As dietas foram formuladas a partir de uma dieta basal (controle), à base de milho e farelo de soja, sem suplementação, e foram acrescidas de 200, 400 ou 600 unidades de atividade de fitase (uft). A suplementação de fitase na ração melhorou o desempenho produtivo e a qualidade dos ovos. A eficiência do uso de fósforo para massa de ovos, a partir de 0,13% de disponibilidade deste mineral na ração, melhorou com a suplementação de 463 uft/kg. Os níveis ideais de fitase para as demais características de desempenho produtivo e qualidade dos ovos também foram alcançados com 463 uft/kg.

Objetivou-se avaliar os efeitos da redução da densidade energética da dieta sobre a qualidade de ovo de codornas japonesas, mantendo a mesma relação energia metabolizável (EM):nutrientes. Foram utilizadas 400 codornas japonesas dos 76 aos 160 dias de idade, distribuídas em delineamento inteiramente casualizado, com cinco tratamentos, 10 repetições e 8 aves por unidade experimental. Utilizaram-se cinco dietas com densidades energéticas distintas (2.900, 2.800, 2.700, 2.600 e 2.500 kcal de EM/kg), mantendo constante a relação entre energia metabolizável e nutrientes da dieta, que continha 2.900 kcal de EM/kg. As aves foram arraçoadas à vontade durante todo o período experimental. Houve diferença significativa apenas no consumo de ração e peso no específico de ovo. Para consumo de EM, PB e aminoácidos, peso do ovo, massa do ovo, peso da gema, porcentagem da gema, peso do albúmen, porcentagem do albúmen, peso da casca, porcentagem da casca, diâmetro do ovo e altura do ovo, não foram encontradas diferença significativas entre as dietas. Recomenda-se utilizar dietas com 2.800 e 2.900 kcal de EM/kg, mantendo a mesma relação EM:nutrientes da dieta, quando o objetivo for qualidade de ovo. The aim of this study was to evaluate the effects of reduction of energetic density of the diet on the quality of Japanese quail eggs, keeping the same metabolizable energy (ME):nutrients relationship. It was used 400 Japanese quails from 76 to 160 days of age, distributed in a complete random design, with five treatments, 10 replicates and 8 birds per experimental unity. It was used five diets with different energetic densities (2,900; 2,800; 2,700; 2,600; and 2,500 kcal ME/kg), keeping constant the relationship between metabolizable energy and nutrients of the diet, which had 2,900 kcal ME/kg. Diet was fed ad libitum during all the experimental period. There was a significant difference only on the ration intake and on the egg specific weight. It was not observed significant difference among diets for the following parameters: metabolizable energy intake, crude protein and amino acids, egg weight, egg mass, yolk weight, yolk percentage, albumen height, albumen percentage, shell weight, shell percentage, egg diameters and egg height. Diets with 2,800 and 2,900 kcal ME/kg, by keeping constant metabolizable energy:nutrients ratio, provide the same egg quality.

O nível dietético adequado (0,12; 0,16; 0,20; 0,24 e 0,28%) de triptofano digestível foi avaliado em 400 codornas japonesas de 21 a 30 semanas de idade, fase de postura. As codornas foram alojadas em gaiolas de 125 cm²/ave, com peso inicial de 158,50 g e produção média de ovos de 84,50%. O delineamento experimental foi em blocos casualizados, constituído por oito blocos, cinco tratamentos, oito repetições de dez aves/repetição e três períodos experimentais de 21 dias cada. Foram avaliados os parâmetros de desempenho das aves, consumo de ração (g/ave/dia), consumo de triptofano (mg/ave/dia), produção de ovos (%/ave/dia), peso médio dos ovos (g), massa de ovos (kg/ave/dia) e conversão alimentar (kg de ração/kg de ovos e por dúzia de ovos). Somente as variáveis consumo de triptofano e produção de ovos apresentaram efeitos significativos dos níveis de triptofano nas dietas. As respostas de desempenho das codornas, respeitando o ajuste estatístico obtido por meio de modelos de regressão linear e do modelo descontínuo LRP, e a interpretação biológica permitem concluir que, para se obter o melhor desempenho produtivo, as dietas de codornas devem conter o nível de 0,21% de triptofano digestível, o que resulta no consumo diário de 45,0 mg/ave de triptofano, correspondendo à relação triptofano: lisina digestível de 21%. The adequate level (0.12, 0.16, 0.20, 0.24, and 0.28%) of the dietary digestible tryptophan was evaluated in 400 laying Japanese quail from 21 to 30 weeks old. The animals were housed in laying cages, with initial weight of 158.50 g and egg production average of 84.50%. A completely randomized blocks design, with eight blocks, five diets, eight replicates of ten birds per replicate and three experimental periods of 21 days each was used. Feed intake (g/bird/day), digestible tryptophan intake (mg/bird/day), egg production (%/bird/day), egg weight (g), egg mass (kg/bird/day) and feed conversion (kg feed intake per kg eggs and dozen eggs) were the characteristics evaluated. Only the characteristics digestible tryptophan intake and egg production rate show significant effects of digestible tryptophan levels in the diets. Performance response of the Japanese quails in posture, regarding the adjustment obtained through models of linear regression and broken-line regression model, and the biological interpretation, allow to conclude that to obtain the best productive performance, the Japanese quails diets should contain the level of 0.21% digestible tryptophan, that results in a daily intake of 45.0 mg/ bird of digestible tryptophan, corresponding to the digestible tryptophan: digestible lysine ratio of 21%.

Conduziu-se um experimento com o objetivo de verificar o efeito de diferentes níveis de fósforo disponível (Pd) e de cálcio (Ca) na dieta sobre o desempenho, a qualidade dos ovos e o perfil nutricional do tecido ósseo de codornas japonesas durante a fase inicial de postura. Foram utilizadas 700 codornas japonesas, com 61 dias de idade, distribuídas em 70 unidades experimentais de dez aves. O delineamento foi inteiramente casualizado em esquema fatorial 5 × 2, composto de cinco níveis de Pd (0,15; 0,25; 0,35; 0,45 e 0,55%) e dois de Ca (2,5 e 3,2%), com sete repetições por tratamento. As dietas experimentais foram isoprotéicas (20,0% PB), isocalóricas (2.900 kcal EM/kg) e isoaminoacídicas. Os níveis de Pd influenciaram de forma quadrática a altura e o diâmetro médio dos ovos, o teor de Ca na casca e a porcentagem de Ca (2,5% Ca) e P (3,2%Ca) nos ossos. Houve melhora linear na produção de ovos comercializáveis e na porcentagem de P nos ossos (menor nível da Ca testado) até os níveis de 0,31 e 0,51% de Pd, respectivamente, na dieta. Com o aumento dos níveis de Pd na dieta, a conversão alimentar por dúzia de ovos piorou de forma linear e a porcentagem e o peso de gema reduziram até os níveis 0,40 e 0,25% de Pd, respectivamente, na dieta. O peso, a porcentagem e a espessura de casca, o peso específico, o teor de Ca na casca e a porcentagem de Ca nos ossos foram influenciados pelos níveis de Ca na dieta. Não houve influência dos níveis de Ca e Pd sobre a produção de ovos, o consumo de ração, a massa de ovos, a conversão alimentar por massa de ovos, a viabilidade, o peso médio final das aves e a porcentagem e o peso de albúmen nos ovos. Níveis dietéticos de 2,5 e 0,31% de Pd são suficientes para proporcionar bom desempenho produtivo e para manutenção satisfatória da qualidade dos ovos e do perfil nutricional do tecido ósseo de codornas japonesas durante a fase inicial de postura. An experiment was conducted with the objective to verify the effect of different levels of available phosphorus (aP) and of calcium (Ca) in the diet on the performance, the quality of eggs and the nutritional status of the bone tissue of japanese quails during the initial laying phase. A total of 700 japanese quails, with 61 days of age, distributed in 70 experimental units with 10 birds each were used. A completely randomized experimental design was use, in a 5 × 2 factorial arrangement with five levels of aP (0.15; 0.25; 0.35; 0.45 e 0,55%) and two levels of Ca (2.5 e 3.2%), with seven replicates per treatments. The experimental diets were isoprotéicas (20.0% CP), isocalóricas (2.900 kcal ME/kg) and isoaminoacids. The levels of aP influenced by a quadratic form, the height and the average diameter of the eggs, the Ca egg shell content and percentage of Ca (2.5% Ca) and P (3.2% Ca) in the bones. There was a linear improvement for the commercial egg production and percentage of P in the bones (lower level of tested Ca), up to the level of 0.31% and of 0.51% P, respectively, in the diet. As aP levels increased in the diet, the conversion for dozen of eggs linearly decreased and the percentage and yolk weight reduced up to the levels of 0.40 and 0.25% of aP, respectively, in the diet. The shell weight, percentage and thickness, specific weight, shell Ca content and percentage of Ca in the bones were influenced by the Ca levels in the diet. There was no influence of the Ca and a aP levels on eggs production, ration consumption, egg mass, feed conversion per eggs mass, viability, final average weight of the birds and percentage and weight of albumen in the eggs. Dietary levels of 2.5 and 0.31% aP are enough to provide good productive performance and satisfactory maintenance of the quality of eggs and nutritional status of bone tissues of Japanese quails during the initial laying period.

Higher corticosterone (CORT) responses to acute stress have previously been reported in quail selected for short (STI) duration of tonic immobility (TI) than for long TI (LTI), although behavioral studies indicated that LTI quail were more fearful. To investigate adrenal and pituitary function in these quail lines and their possible involvement in the differences in hypothalamic-pituitary-adrenal (HPA) axis reactivity, we measured CORT responses to adrenocorticotropin (1-24 ACTH), corticotropin-releasing factor (CRF), and arginine vasotocin (AVT) after characterizing the nucleotide acid sequences of these peptides in quail. Although maximum adrenal responses, assessed by ACTH challenge, were higher in STI quail, adrenal sensitivity was comparable for the two genotypes. It is therefore unlikely that differences in HPA axis reactivity involved the adrenal level. AVT and ACTH induced comparable CORT responses in both genotypes, whereas those induced by CRF were much lower. AVT is thus more potent than CRF in quail, but the respective maximum pituitary capacity of both genotypes to secrete ACTH was similar, and it is doubtful that the AVT pathway is involved in the difference in HPA axis reactivity between genotypes. On the other hand, the higher CORT responses induced by CRF in STI quail suggest that CRF might be involved in the differences in HPA axis reactivity between LTI and STI genotypes.

Foi conduzido um experimento para determinação da exigência nutricional de cálcio de 360 codornas japonesas fêmeas (peso médio inicial de 121,5 g), durante o período inicial de produção (56 a 171 dias de idade). As aves foram distribuídas em delineamento inteiramente casualizado, em esquema fatorial 6 x 4, com seis níveis de Ca na ração (1,6; 2,0; 2,4; 2,8; 3,2 e 3,6%) e quatro períodos experimentais de 28 dias. Cada tratamento foi constituído de seis repetições e a unidade experimental foi representada pela gaiola contendo dez aves. Não houve efeito significativo da interação níveis de Ca ' períodos sobre nenhuma das variáveis avaliadas. Verificou-se, no entanto, aumento linear para produção de ovos, peso de ovo e espessura de casca. Houve ainda redução linear para conversão alimentar por massa de ovos e porcentagem de Ca na tíbia e efeito quadrático para massa de ovo, ganho de peso das aves, peso específico dos ovos, peso de casca e porcentagem de cinzas na tíbia. Observou-se que a produção e a massa de ovos obtidas com o nível de 3,2% de Ca foi 3,3 e 3,8% superiores, respectivamente, em valores absolutos, quando comparada àquela contendo 3,6% de Ca. A exigência de Ca estimada de codornas japonesas na fase inicial de produção variou de 3,0 a 3,6% na dieta, de acordo com os parâmetros avaliados. Recomenda-se o nível de 3,2% de Ca na dieta, que corresponde a um consumo diário de 882 mg de Ca/ave, ou de 87 mg de Ca/g de ovo, como exigência satisfatória para obtenção de melhor produção e de eficiente conversão alimentar (por massa e por dúzia de ovos) e para manutenção da qualidade dos ovos. An experiment was conducted to determine nutritional calcium requirement of 360 Japanese female quails averaging initial weight of 121.5 g during the initial production phase (from 56 to 171 days of age). A complete randomized design with a 6 x 4 factorial arrangement (six Ca levels: 1.6, 2.0, 2.4, 2.8, 3.2, and 3.6% and four experimental periods of 28 days each) was used. Each treatment consisted of six replicates and a cage with ten birds, that was the experimental unit. No significant effect of Ca levels ' periods interaction on any variable was detected. However, it was observed linear increase on egg production, egg weight and eggshell thickness and linear decrease on feed:egg mass ratio and Ca percentage in the tibia, and quadratic effect on egg mass, bird weight gain, egg specific weight, eggshell weight and ash percentage in the tibia. It was observed that egg production and mass obtained with the 3.2% Ca level was 3.3 and 3.8% greater, respectively, in absolute values, than the 3.6% Ca level. The estimated Ca requirement of Japanese laying quails during the initial production phase ranged from 3.0 to 3.6% in the diet, depending on the evaluated parameters. It is recommended the dietary Ca level of 3.2%, that corresponds to a daily intake of 882 mg Ca/bird or 87 mg Ca/g of egg, to obtain better production and feed efficiency (feed:egg mass and feed:egg dozen ratios) and to maintain egg quality.

Denli, M., Okan, F. and Uluocak, A.N. 2004. Effect of dietary black seed (Nigella sativa L.) extract supplementation on laying performance and egg quality of quail (Coturnix coturnix japonica). J. Appl. Anim. Res., 26: 73–76. To measure the influence of dietary black seed extracts on performance and egg quality characteristics in laying quail (Coturnix coturnix japonica) from 9–21 weeks of age, a total 45 layer quail (8 weeks, 226.3 g), were randomly distributed into three groups. The black seed extracts were supplemented at 0, 1 and 2glkgina standard layer diet and each of the three test diets was offered ad libitum to birds housed individually in laying cages from 9 to 21 weeks of age. The egg production, feed efficiency, egg weight, shell weight, shell thickness, albumen height, albumen length and yolk height were higher in the group consuming 1 g/kg black seed extracts (P

Foram utilizadas 540 codornas fêmeas, com idade inicial de sete dias e peso médio de 21,50 g, durante 35 dias. O delineamento foi em blocos ao acaso, com cinco repetições e 18 aves por unidade experimental. Os tratamentos consistiram de seis relações metionina mais cistina digestível: lisina digestível (0,48, 0,53, 0,58, 0,63, 0,68 e 0,75). Foram estudadas as variáveis peso final (g), ganho de peso (g), consumo alimentar (g), conversão alimentar (g/g), empenamento (%), composição química corporal (matéria seca, água, proteína e extrato etéreo) e deposição de proteína e gordura corporais. Os tratamentos influenciaram de forma quadrática o consumo alimentar, a conversão alimentar, o empenamento, a composição química (matéria seca, água, proteína e extrato etéreo) e a deposição de proteína corporal, e linearmente o peso final e o ganho de peso das codornas. A melhor relação metionina mais cistina digestível: lisina digestível para as codornas japonesas em crescimento foi de 0,66, sendo a exigência em metionina mais cistina digestível estimada em 0,758%, para consumo de 91,43 mg de metionina mais cistina digestível. Five hundred and forty 7-days old female quails, averaging 21.50 g, were used during 35 days. A completely randomized blocks design with five replicates and 18 females per experimental unity was used to study the effect of six digestible methionine plus cystine: digestible lysine ratios (0.48, 0.53, 0.58, 0.63, 0.68 and 0.75) on the traits evaluated during the growing period. Final weight (g), weight gain (g), feed intake (g), feed conversion (g/g), feather rate (%), chemical composition (%) (dry matter, water, crude protein and ether extract) and body protein and fat deposition (g). The effect of the amino acids on feed intake (g), feed conversion (g/g), feather rate (%), chemical composition (%) (dry matter, water, crud protein and ether extract) and protein deposition was quadratic and the effect on final body weight (g) and weight gain (g) was linear. The best estimated digestible methionine plus cystine: digestible lysine ratio was .66 and the estimated digestible methionine plus cystine requirement for growing Japanese quail was .758%, for a intake of 91.43 mg of digestible methionine plus cystine intake.

Le présent travail propose une évaluation des performances de ponte et de la qualité des oeufs de cailles. Pour cette étude, les oeufs de 200 cailles ont été récoltés toutes les 4 semaines à partir de la 12ème semaine d'âge jusque la 44ème semaine d'âge. Pour chaque période de récolte, les 240 premiers oeufs ont été pris en compte. Le taux de ponte moyen calculé sur une période de 37 semaines est de 74,44 %. Tous les paramètres de qualité d'oeufs étudiés ont été significativement (p

Made available in DSpace on 2016-08-29T15:37:23Z (GMT). No. of bitstreams: 1 tese_5653_CARLOS EDUARDO LINO PINTO.pdf: 349790 bytes, checksum: 0b5a39835b34dcdbb8395cf62729741e (MD5) Previous issue date: 2012-03-05 Com este estudo objetivou-se determinar os níveis de fósforo disponível (Pdisp) para codornas japonesas (Coturnix coturnix japonica) em período de postura. Foram utilizadas 648 codornas japonesas produtoras de ovos para consumo, alojadas em gaiolas do tipo bateria, com dimensões de 0,9 x 0,33 x 0,15 m, e distribuídas em delineamento inteiramente ao acaso, com cinco tratamentos, oito repetições sendo nove aves/unidade experimental. Foi elaborada dieta a base de milho e farelo de soja, formulada para atender as recomendações nutricionais, exceto para fósforo disponível. Esta continha 2.900 kcal EM/ kg de ração, 20% de proteína bruta, 3,05% de cálcio, 0,10% de fósforo disponível, 1,05% de lisina digestível, 0,720% de metionina+cistina e 0,730% de treonina digestível. A esta dieta basal, foi adicionado fosfato com diferentes granulometrias (fina ou grossa) e o calcário, em substituição ao material inerte, de forma a obter cinco níveis de fósforo disponível (0,10; 0,20; 0,30; 0,40 e 0,50%) para cada granulometria utilizada. Em conclusão, a recomendação de fósforo disponível, varia em função da granulometria do fosfato utilizado. Desta forma, para granulometria fina foi encontrado o nível 0,44% de fósforo disponível, e para fosfato de granulometria grossa, o nível de 0,385% de fósforo disponível para codornas no segundo ciclo de postura. The aim of this study was to determine the levels of available phosphorus forJapanese quail (Coturnix coturnix japonica) in the laying period. 648 Japanese quails were used producing eggs for consumption, in cages like battery, with dimensions of 0.9 x 0.33 x 0.15 m, and distributed in a completely randomized design with five treatments, eight replicates and nine hens/experimental unit. Was prepared diet based on corn and soybean meal, formulated to meet nutritional recommendations, except for available phosphorus. It contained 2900 kcal/kg, 20% crude protein, 3.05% calcium, 0.10% phosphorus, 1.05% of lysine, 0.720% methionine+cystine and threonine 0.730% digestible. To this basal diet, phosphate was added with different particle sizes (fine or coarse) and limestone, replacing the inert material in order to obtain five levels of available phosphorus (0.10, 0.20, 0.30, 0.40 and 0.50%) for each particle size used. In conclusion, the recommendation phosphorus, varies depending on the granulometry of phosphate used. Thus, for finely was found at 0.44% available phosphorus, and coarse, the level of 0.385% phosphorus for quails position in the second cycle.

The aim of this study was to estimate genetic parameters of some carcass characteristics in the Japanese quail. For this aim, carcass weight (Cw), breast weight (Bw), leg weight (Lw), abdominal fat weight (AFw), carcass yield (C P), breast percentage (B P), leg percentage (L P) and abdominal fat percentage (AF P) were measured on approximately 500 quails (offspring of 60 sires and 180 dams). Gibbs sampling (GS) under a multi-trait animal model was applied to estimate heritability and genetic correlations. Genetic analyses were performed using MTGSAM (Multiple Trait Gibbs Sampling) software. Heritability estimates for all the traits were low to moderate. Point estimates (means of marginal posterior densities) of heritabilities for Cw, Bw, Lw, AFw and C P, B P, L P, AF P were 0.42, 0.36, 0.34, 0.40 and 0.11, 0.18, 0.12, 0.29, respectively. Genetic correlations between the carcass parts (Cw, Bw, Lw, AFw) were high and positive, ranging from 0.65 to 0.87. Direct selection for total carcass weight would increase its component traits. There were moderate to high negative genetic relationships between AF P and L P (-0.27), AF P and B P (-0.34), and AF P and C P (-0.89). Therefore, a decreasing AF P in quail could be reached by direct selection for higher C P.

ALTINTAS, Levent/0000-0002-5148-723X WOS: 000257791500006 This study was carried out to investigate the effects of dietary inclusion of shelled acorn seed (Quercus cerris) on the growth performance and carcass yield of Japanese quail (Coturnix coturnix japonica). Four hundred four-day old quail chicks were used in this study. Experimental diets contained 0, 5, 10, 15 or 20% shelled acorn seed. The experiment lasted 38 days. There were no differences between treatments in body weight, body weight gain, feed intake and feed conversion ratio. Furthermore, the mortality rate and carcass yield were not affected by the inclusion in the diet of different levels of shelled acorn seed. The inclusion of shelled acorn seed to the quail diets did not cause any harmful effect on the health of the birds. These results suggested that up to 20% shelled acorn seed could be included as an energy source in quail diets.