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Made available in DSpace on 2020-12-11T21:11:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-07-01 Oligo Basics USA, LLC (Cary, NC) North Carolina Agricultural Foundation, Inc. (Raleigh, NC) USDA-NIFA Project Two experiments were conducted to evaluate the effects of functional oils containing cashew nutshell and castor oil on turkey performance and intestinal morphology. In experiment 1, 585 hatchlings were randomly placed in 15 replicate floor pens, (13 poults/pen) with recycled litter and provided feed and water ad libitum. Birds were randomly assigned to 3 dietary treatments from 1 to 12 wk: nonmedicated control, 0.15% functional oils, and 66-ppm monensin. From wk 13 to 20, each initial treatment group was further divided into 3 treatments-control (no additive), 0.15% of functional oils, or 20 ppm of virginiamycin to produce 9 different treatments, 5 replicate pens per treatment. Data on feed weights were collected weekly, and body weight bi-weekly. At termination (20 wk), birds were euthanized, and their meat was processed to determine mass of carcass sections and meat quality, while intestinal samples were collected for histology. In experiment 1, toms fed monensin or functional oils were 10.5 and 4.5% heavier (P < 0.05), respectively, than the controls at 12 wk. Birds fed monensin had a 4% improvement (P < 0.05) in feed conversion as compared to the other treatments. Neither virginiamycin nor the functional oils affected bird performance when fed from 13 to 20 wk. The jejunum villi surface area at 3 wk was most enhanced (P < 0.05) for the poults fed monensin. Supplementation with functional oils significantly reduced leg yield and thiobarbituric-acid reactive substances of white meat after 7 D of storage (P < 0.05). There were no effects on performance or carcass characteristics in experiment 2. While additional confirmatory studies are needed, functional oils in the diet of turkey toms may be a viable alternative to antibiotic growth promotants. NCSU, Prestage Dept Poultry Sci, Raleigh, NC 27695 USA Sao Paulo State Univ, Sao Paulo, SP, Brazil ARS, USDA, Market Qual & Handling Res Unit, Raleigh, NC 27695 USA Oligo Basics USA LLC, Cary, NC 27519 USA Sao Paulo State Univ, Sao Paulo, SP, Brazil USDA-NIFA Project: NC06343

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:40:17Z No. of bitstreams: 1 S1516-635X2010000100010.pdf: 607113 bytes, checksum: a33f9bc76f663a9026a41121075c6ddf (MD5) Made available in DSpace on 2013-08-22T18:40:17Z (GMT). No. of bitstreams: 1 S1516-635X2010000100010.pdf: 607113 bytes, checksum: a33f9bc76f663a9026a41121075c6ddf (MD5) Previous issue date: 2010-03-01 Made available in DSpace on 2013-09-30T17:51:20Z (GMT). No. of bitstreams: 2 S1516-635X2010000100010.pdf: 607113 bytes, checksum: a33f9bc76f663a9026a41121075c6ddf (MD5) S1516-635X2010000100010.pdf.txt: 43571 bytes, checksum: 075e91cd36fe8e623e42b893e1e00fed (MD5) Previous issue date: 2010-03-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:13:48Z No. of bitstreams: 2 S1516-635X2010000100010.pdf: 607113 bytes, checksum: a33f9bc76f663a9026a41121075c6ddf (MD5) S1516-635X2010000100010.pdf.txt: 43571 bytes, checksum: 075e91cd36fe8e623e42b893e1e00fed (MD5) Made available in DSpace on 2014-05-20T13:13:48Z (GMT). No. of bitstreams: 2 S1516-635X2010000100010.pdf: 607113 bytes, checksum: a33f9bc76f663a9026a41121075c6ddf (MD5) S1516-635X2010000100010.pdf.txt: 43571 bytes, checksum: 075e91cd36fe8e623e42b893e1e00fed (MD5) Previous issue date: 2010-03-01 There is little information on the nutrition of red-winged tinamous (Rhynchotus rufescens) reared in captivity, and their nutritional requirements still need to be determined. This study aimed at determining dietary crude protein requirements and testing four organic selenium supplementation levels in the diet of red-winged tinamous during the breeding season. Birds were housed in a conventional broiler house divided in 16 boxes with one male and three females each. Iso-energy (2800kcal ME/kg) pelleted feeds, based on corn and soybean meal, were supplied in tube feeders. In the first experiment, treatments consisted of four different diets containing different crude protein (CP) contents (15, 18, 21, or 24%) and in the second experiment, the four diets contained equal protein level (22.5%) and four different organic selenium levels (0, 0.2, 0.4, or 0.8ppm). Data were analyzed by the least square method. The best egg weight and eggshell thickness were obtained with 22.5% dietary CP. Organic selenium did not influence the studied reproductive traits of red-winged tinamous (Rhynchotus rufescens) males or females. UNESP FCAV Post-Graduation Program in Animal Science USP FMVZ Department of Animal Reproduction UNESP FCAV Department of Animal Science UNESP FCAV Department of Animal Morphology and Physiology UNESP FCAV Department of Exact Sciences UNESP FCAV Post-Graduation Program in Animal Science UNESP FCAV Department of Animal Science UNESP FCAV Department of Animal Morphology and Physiology UNESP FCAV Department of Exact Sciences

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:08:05Z No. of bitstreams: 0 Made available in DSpace on 2013-08-22T19:08:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-09-01 Made available in DSpace on 2013-09-30T20:12:59Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-09-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:18:26Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T15:18:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-09-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) O objetivo deste trabalho foi avaliar a utilização da polpa de citros peletizada (PCP) como cama de frango, bem como analisar a composição bromatológica desse material. O experimento foi constituído de 1.792 pintos de um dia-machos e dividido em duas fases: 1 a 21 e 35 a 49 dias. Foi utilizado o delineamento em blocos ao acaso, com quatro repetições, em esquema fatorial 2x2x2, sendo os fatores tipo de cama: PCP e maravalha x altura de cama: 7 e 10 cm x densidade: 10 e 14aves/m². Foram avaliados os parâmetros: gsnho de peso(GP), consumo de ração (CR), conversão alimentar (CA),viabilidade (V), incidência de lesões no coxim plantar e de calo de peito, matéria seca (MS) e pH da cama aos 21 e 49 dias. Para verificar as possíveis alterações bromatológicas na cama foram feitas análises de Weende e Van Soest, bem como de energia bruta. Independentemente da altura da cama, as aves criadas em PCP numa densidade de 14 aves/m² apresentaram piores resultados de GP e CR no período de 35 a 49 dias. em geral, os resultados de GP e CR foram mais influenciados pelas densidades do que pelos materiais utilizados. Não houve diferença significativa entre os tratamentos para ambas as lesões. de uma maneira geral, a MS da cama de PCP foi maior enquanto o pH foi menor quando comparados com a maravalha. Nas análises bromatológicas, observou-se um efeito significativo dos tratamentos para todas as variáveis, com exceção da MM, a qual não apresentou diferença entre as médias (p>0,05). Melhores valores de PB, FDN e FDA foram obtidos com a cama de PCP. The object of this experiment was to evaluate the citrus pulp-pelleted (CPP) as a broiler litter and their chemical composition. The experiment used 1792 one day-old males, and it was divided into two phases: 1 to 21 and 35 to 49 days of age. The experimental design was a factorial 2x2x2 with four replicates. The factors were: type of broiler litter (CPP and wood shaving), broiler litter depth (7 and 10 cm) and stocking densities (10 and 14 broilers/m²). The parameters analyzed were: weight gain (WG), feed consumption(FC), feed conversion, incidence of breast blister and foot pad lesion, survivability, dry matter and pH of the broiler litter (21 and 49 days old). To evaluate the possible alteration in the litter chemical composition Weende and van Soest analyses was performed and gross energy was also determined. Independently of depth of litter, the broilers reared on CPP and in the density of 14 broiler/m² showed worse results to WG and FC of 35 to 49 days of age. The results of WG and FC were more affected by the density than the types of broiler litter. There was no significant difference among the treatments for footpad lesion and for lesions of breast blister. The dry matter was higher in CPP than wood shaving. The pH of the broiler litter of CPP was smaller than wood shaving. The chemical analysis showed significant differences due to treatment (p

Made available in DSpace on 2022-04-28T19:55:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-01-01 Adequate environmental temperature during the brooding period is very important to future broiler performance. Thus, the objective of this study was to investigate the extent to which environmental temperature affects the body weight and cloacal and surface (back, head, wing, and shank) temperatures. The study also investigated the sensible heat loss by radiation of broiler chicks reared at three environmental temperatures (35, 25, and 20°C) up to 7 days of life. The results showed that chicks raised at low environmental temperature (20°C) had lower body weight at 7 days of age. Birds kept at 20°C also had significantly lower cloacal and surface temperatures than did other birds. The most marked difference was seen in the shanks. These findings revealed that body weight declined in chicks reared at 20°C, and radiant heat loss (W) was nine times higher than for the birds kept at 35°C at 7 days of age. Depto. de Morfol. e Fisiol. Animal Faculdade Cie. Agrarias V. UNESP, CEP 14.870-000, Jaboticabal, SP Depto. de Morfol. e Fisiol. Animal Faculdade Cie. Agrarias V. UNESP, CEP 14.870-000, Jaboticabal, SP

Made available in DSpace on 2014-10-01T13:08:49Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-12-01Bitstream added on 2014-10-01T14:03:39Z : No. of bitstreams: 1 S1516-635X2013000400014.pdf: 1072590 bytes, checksum: cf1ed7ebc45cf6eaf4a68c93c065e376 (MD5) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) The objective of this study was to evaluate the performance, carcass and parts yield, and blood changes in broilers fed different protein, carbohydrate, and lipid levels. Birds were fed a commercial diet until seven days of age. On day 8, birds were distributed according to a completely randomized experimental design in a 4 x 2 factorial arrangement (control diet, low protein diet, low carbohydrate diet or low lipid diet vs. supplementation of 0 or 0.3ppm organic selenium) with four replicates of 15 birds each. Broilers fed low protein presented lower body weight, feed intake, and worse feed conversion ratio on day 42, as well as lower carcass and breast yields, higher leg and abdominal fat yields, higher triglyceride and lower uric acid blood levels. Broilers fed the low carbohydrate diets presented low glucose levels on days 14 and 42.Creatine-kinase (CK) levels increased as birds aged. The livability of broilers fed the low protein diets improved and of those fed low carbohydrate diets worsened with dietary selenium addition on days 35 and 42. Selenium supplementation increased glucose levels in 42-d-old broilers. Changes in dietary protein caused more impact on broiler performance compared with carbohydrates and lipids. Changes in macronutrients caused metabolic changes in broilers. Selenium affected broiler livability as measured on days 35 and 42, and glucose blood levels. UNESP Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal IDepartamento de Zootecnia UNESP FCAV North Carolina State University Department of Poultry Science UNESP Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal IDepartamento de Zootecnia UNESP FCAV

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:56:34Z No. of bitstreams: 1 S0102-09352011000600024.pdf: 219923 bytes, checksum: bf5287570b87dd458c6ec3ea338672f8 (MD5) Made available in DSpace on 2013-08-22T18:56:34Z (GMT). No. of bitstreams: 1 S0102-09352011000600024.pdf: 219923 bytes, checksum: bf5287570b87dd458c6ec3ea338672f8 (MD5) Previous issue date: 2011-12-01 Made available in DSpace on 2013-09-30T19:50:37Z (GMT). No. of bitstreams: 2 S0102-09352011000600024.pdf: 219923 bytes, checksum: bf5287570b87dd458c6ec3ea338672f8 (MD5) S0102-09352011000600024.pdf.txt: 30943 bytes, checksum: a449c5425c9ae95339ebefe0db4f823c (MD5) Previous issue date: 2011-12-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:18:34Z No. of bitstreams: 2 S0102-09352011000600024.pdf: 219923 bytes, checksum: bf5287570b87dd458c6ec3ea338672f8 (MD5) S0102-09352011000600024.pdf.txt: 30943 bytes, checksum: a449c5425c9ae95339ebefe0db4f823c (MD5) Made available in DSpace on 2014-05-20T13:18:34Z (GMT). No. of bitstreams: 2 S0102-09352011000600024.pdf: 219923 bytes, checksum: bf5287570b87dd458c6ec3ea338672f8 (MD5) S0102-09352011000600024.pdf.txt: 30943 bytes, checksum: a449c5425c9ae95339ebefe0db4f823c (MD5) Previous issue date: 2011-12-01 Foram realizados três experimentos com o objetivo de avaliar o efeito da suplementação de minerais na forma orgânica na dieta de codornas japonesas na fase de postura sobre o desempenho e a qualidade de ovos das aves. Os níveis de minerais utilizados por kg de ração, para cada experimento, foram: controle, 0,35, 0,70 e 1,05mg de Se orgânico (experimento 1); controle, 50, 100 e 150mg de Zn orgânico (experimento 2) e controle, 60, 120 e 180mg de Mn orgânico (experimento 3). As aves foram distribuídas em delineamento inteiramente ao acaso, sendo oito aves por parcela e seis repetições por tratamento. Foram avaliadas as características de desempenho - consumo diário de ração, peso dos ovos, porcentagem de postura, conversão alimentar por massa de ovos e por dúzia de ovos e viabilidade - e qualidade dos ovos - unidade Haugh, índice gema, porcentagens de casca, albúmen e gema, espessura de casca e gravidade específica. O Zn orgânico suplementado à dieta melhorou o desempenho das aves e a qualidade dos ovos, o Mn orgânico melhorou a qualidade da casca e reduziu o peso dos ovos e o Se não apresentou efeitos sobre as características avaliadas. Three experiments were carried out to evaluate the effect of minerals in organic form in diet supplementation in Japanese quails performance. The levels of minerals used per kg of diet for each experiment were: Experiment 1: control, 0.35; 0.70 and 1.05mg organic; Experiment 2: control, 50; 100 and 150mg organic Zn; and Experiment 3: control, 60; 120 and 180mg organic Mn. The birds were randomly allotted in treatments with eight birds per experimental unit and six replicates per treatment. Performance traits of the quails estimated by daily feed intake, egg weight, egg production, feed conversion by egg mass and per dozen eggs and viability, and egg quality measured by Haugh unit, yolk index, shell, albumen and yolk percentage, shell thickness and specific gravity were evaluated. The organic Zn diet supplementation improved bird performance and egg quality, the organic Mn diet improved eggshell quality and reduced egg weight, and the Se diet did not affect the evaluated characteristics. UNESP Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal UNESP Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:56:04Z No. of bitstreams: 1 S0102-09352008000200024.pdf: 164468 bytes, checksum: ac8256ef388d7f0f2e96dadcb51896ac (MD5) Made available in DSpace on 2013-08-22T18:56:04Z (GMT). No. of bitstreams: 1 S0102-09352008000200024.pdf: 164468 bytes, checksum: ac8256ef388d7f0f2e96dadcb51896ac (MD5) Previous issue date: 2008-04-01 Made available in DSpace on 2013-09-30T19:49:34Z (GMT). No. of bitstreams: 2 S0102-09352008000200024.pdf: 164468 bytes, checksum: ac8256ef388d7f0f2e96dadcb51896ac (MD5) S0102-09352008000200024.pdf.txt: 23725 bytes, checksum: bb99b79c270403ac57da739c8c658af8 (MD5) Previous issue date: 2008-04-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:18:34Z No. of bitstreams: 2 S0102-09352008000200024.pdf: 164468 bytes, checksum: ac8256ef388d7f0f2e96dadcb51896ac (MD5) S0102-09352008000200024.pdf.txt: 23725 bytes, checksum: bb99b79c270403ac57da739c8c658af8 (MD5) Made available in DSpace on 2014-05-20T13:18:34Z (GMT). No. of bitstreams: 2 S0102-09352008000200024.pdf: 164468 bytes, checksum: ac8256ef388d7f0f2e96dadcb51896ac (MD5) S0102-09352008000200024.pdf.txt: 23725 bytes, checksum: bb99b79c270403ac57da739c8c658af8 (MD5) Previous issue date: 2008-04-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundação para o Desenvolvimento da UNESP (FUNDUNESP) Avaliaram-se a digestibilidade ileal, retenção de nutrientes e valores de energia metabolizável aparente (EMA) de dietas suplementadas com fitase e níveis reduzidos de fósforo não-fítico (FNF) para frangos de corte. Foram utilizados 330 pintos machos em delineamento em blocos ao acaso e esquema fatorial 2 x 3 com dois níveis de fitase (0 e 25U/kg) e três níveis de FNF (100, 85 e 70% das exigências da ave), totalizando seis tratamentos com cinco repetições de 11 aves cada. Não houve efeito da interação FNF vs fitase e dos níveis de FNF ou fitase sobre a retenção de matéria seca e de fósforo, e a interação FNF vs fitase foi significativa para retenção de proteína bruta e coeficiente de digestibilidade ileal da matéria seca. A suplementação com fitase, independente dos níveis de FNF, melhorou o coeficiente digestibilidade ileal da proteína bruta, do cálcio e do fósforo. A retenção de cálcio e a redução dos níveis de FNF diminuíam a metabolização da energia bruta das dietas com 85 e 70% das exigências de FNF. Dietas com nível de 70% das exigências de FNF, suplementadas com fitase, podem ser usadas para frangos de corte sem prejuízos à digestibilidade ileal e retenção da matéria seca, proteína bruta, cálcio e fósforo e à metabolização da energia bruta. The ileal digestibility, the retention of nutrients, and the apparent metabolizable energy (AME) values of diets supplemented with phytase and low levels of nonphytate phosphorus (NPP) for broilers were evaluated. Three hundred and thirty male birds were used. The experiment was designed in randomized blocks in a factorial arrangement 2x3 with two phytase levels (0 and 25U/kg) and three NPP levels (100, 85, and 70% of the bird requirement in each phase), with five replicates of 11 broiler for each experimental unit. Effects of NPP vs phytase interaction and NPP and phytase levels on dry matter (DM) and phosphorus (P) retention were not observed; but significant effects of NPP vs phytase on crude protein (CP) retention and DM ileal digestibility coefficient (IDC). Phytase supplementation, independently of NPP levels, improved CPIDC, CaIDC, PIDC, and Ca retention and the lower NPP levels decreased the gross energy metabolization in diets with 85 and 70% of NPP requirements. Diets with NPP level corresponding to 70% of the bird requirements, supplemented with phytase, can be used for broiler with no negative effect on ileal digestibility and retention of dry matter, crude protein, calcium and phosphorus, and on apparent metabolizable energy. FESURV Faculdade de Medicina Veterinária UNESP Faculdade de Ciências Agrárias e Veterinárias UNESP Faculdade de Ciências Agrárias e Veterinárias

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:56:04Z No. of bitstreams: 1 S0102-09352008000200025.pdf: 191462 bytes, checksum: 45163a2207c0853aa6ca3999cede7a58 (MD5) Made available in DSpace on 2013-08-22T18:56:04Z (GMT). No. of bitstreams: 1 S0102-09352008000200025.pdf: 191462 bytes, checksum: 45163a2207c0853aa6ca3999cede7a58 (MD5) Previous issue date: 2008-04-01 Made available in DSpace on 2013-09-30T19:49:35Z (GMT). No. of bitstreams: 2 S0102-09352008000200025.pdf: 191462 bytes, checksum: 45163a2207c0853aa6ca3999cede7a58 (MD5) S0102-09352008000200025.pdf.txt: 23352 bytes, checksum: 9f91dc653d9a9b160e1094c878da82a6 (MD5) Previous issue date: 2008-04-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:18:34Z No. of bitstreams: 2 S0102-09352008000200025.pdf: 191462 bytes, checksum: 45163a2207c0853aa6ca3999cede7a58 (MD5) S0102-09352008000200025.pdf.txt: 23352 bytes, checksum: 9f91dc653d9a9b160e1094c878da82a6 (MD5) Made available in DSpace on 2014-05-20T13:18:34Z (GMT). No. of bitstreams: 2 S0102-09352008000200025.pdf: 191462 bytes, checksum: 45163a2207c0853aa6ca3999cede7a58 (MD5) S0102-09352008000200025.pdf.txt: 23352 bytes, checksum: 9f91dc653d9a9b160e1094c878da82a6 (MD5) Previous issue date: 2008-04-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundação para o Desenvolvimento da UNESP (FUNDUNESP) Avaliaram-se o desempenho e a morfologia da mucosa intestinal de frangos de corte alimentados com mananoligossacarídeos (MOS) e enzimas (E) até os 21 dias de idade. Utilizaram-se 750 pintainhos de um dia em delineamento experimental inteiramente ao acaso, em esquema fatorial 2 x 2 + 1 (dois níveis de MOS - 0 e 0,1%, dois níveis de E - 0 e 0,05% e uma dieta controle positivo com antibióticos) totalizando cinco tratamentos com cinco repetições cada. A interação MOS x E foi significativa para o perímetro de altura de vilos no duodeno (P

Previously, we reported that thermal conditioning at 39°C on days 13–17 of incubation of broiler eggs enabled thermotolerance during post-hatch growth (J. Therm. Biol. 28 (2003) 133). Tolerance to a temperature of 30°C was accompanied by changes in thyroid hormones and metabolic parameters. In the current study, we determined the mechanism of epigenetic heat adaptation during embryonic age by measuring blood physiological parameters that may be associated with the ultimate effects of thermal conditioning. Hatching eggs from Ross breeders were subjected to heat treatment of 39°C at days 13, 14, 15, 16 and 17 of incubation for 2 h per day. Control eggs were incubated at 37.6°C. Samples of eggs were withdrawn on each day of thermal conditioning and at internal pipping (IP) to obtain blood samples from embryos. The remaining eggs were weighed at day 18 and transferred to hatchers. The timing of IP, external pipping (EP) and hatching were monitored every 2 h. At hatch, chicks were weighed and hatchability was determined. Blood samples were obtained from samples of day-old chicks. T3, T4, corticosterone, pCO2, pO2 levels were determined in the blood. Blood pH was measured and T3/T4 ratios were calculated. Heat conditioning significantly increased corticosterone and pO2 levels and blood pH but depressed pCO2 at day 14. These were followed by a significant depression of T4 level on day 15. Remarkably, at day 16, all these parameters were back to normal as in the control embryos. Hatching was delayed by thermal conditioning probably as a result of the depressed corticosterone levels at IP. Hatchability was also lower in the heat-treated group but 1-day old chick weights were comparable to those of the controls. The result suggests that epigenetic thermal conditioning involves changes in these physiological parameters and probably serve as a method for epigenetic temperature adaptation since the same mechanisms are employed for coping with heat during post-embryonic growth. It also suggests that days 14–15 may be the optimal and most sensitive timing for evoking this mechanism during embryonic development. The adverse effects of heat treatment observed in this study may have been due to the continued exposure to heat until day 17. Fine-tuning thermal conditioning to days 14–15 only may improve these production parameters.

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:08:07Z No. of bitstreams: 1 S1516-635X2002000100003.pdf: 79342 bytes, checksum: ff0fe30a828436d1e7169b2a45f837ed (MD5) Made available in DSpace on 2013-08-22T19:08:07Z (GMT). No. of bitstreams: 1 S1516-635X2002000100003.pdf: 79342 bytes, checksum: ff0fe30a828436d1e7169b2a45f837ed (MD5) Previous issue date: 2002-01-01 Made available in DSpace on 2013-09-30T17:55:40Z (GMT). No. of bitstreams: 2 S1516-635X2002000100003.pdf: 79342 bytes, checksum: ff0fe30a828436d1e7169b2a45f837ed (MD5) S1516-635X2002000100003.pdf.txt: 26565 bytes, checksum: 96defb39bed04dc0919cee473f0d3ae7 (MD5) Previous issue date: 2002-01-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:13:37Z No. of bitstreams: 2 S1516-635X2002000100003.pdf: 79342 bytes, checksum: ff0fe30a828436d1e7169b2a45f837ed (MD5) S1516-635X2002000100003.pdf.txt: 26565 bytes, checksum: 96defb39bed04dc0919cee473f0d3ae7 (MD5) Made available in DSpace on 2014-05-20T13:13:37Z (GMT). No. of bitstreams: 2 S1516-635X2002000100003.pdf: 79342 bytes, checksum: ff0fe30a828436d1e7169b2a45f837ed (MD5) S1516-635X2002000100003.pdf.txt: 26565 bytes, checksum: 96defb39bed04dc0919cee473f0d3ae7 (MD5) Previous issue date: 2002-01-01 O presente trabalho teve como objetivo estudar o efeito de diferentes temperaturas-ambiente durante a primeira semana de vida de pintos de corte sob parâmetros zootécnicos, desenvolvimento visceral e crescimento ósseo. Foram utilizados 240 pintos de um dia, alojados em 3 câmaras climáticas, com temperaturas constantes de 20, 25 e 35°C do 1° ao 7° dia de vida. Diariamente, o consumo de água e ração, bem como o peso vivo, o peso relativo do fígado, moela, coração, saco vitelino e bursa de Fabricius foram avaliados. A tíbia e o fêmur também foram pesados e o comprimento e espessura (diâmetro médio) mensurados. As aves criadas a 20°C ganharam menos peso e consumiram menos ração do que aves mantidas a 25°C e menos água do que aves mantidas a 35°C. O peso relativo do fígado, coração e moela foram afetados pela temperatura ambiente, entretanto, não foi observado efeito da temperatura de criação sobre o peso do saco vitelino e bursa de Fabricius. Os dados mostraram que todos os parâmetros ósseos pesquisados aumentaram com a idade das aves. A temperatura ambiente não afetou a espessura da tíbia e do fêmur, mas foi observado um aumento significativo no peso e comprimento dos ossos com o aumento da temperatura ambiente. Os resultados desse experimento mostraram que o estresse por frio (20°C) reduziu o crescimento ósseo bem como o peso vivo das aves, durante os primeiros sete dias após a eclosão. The objective of the present study was to assess the development of broiler chicks during the first week post-hatching when reared at three different environmental temperatures. A total of 480 day-old chicks were placed in three environmentally controlled rooms (20, 25 and 35°C) from 1 to 7 days of age. Body weight gain, feed and water intake, as well as liver, gizzard, heart, yolk sac and bursa of Fabricius weights were measured daily. Tibia and femur bones were weighed and their length and width (medial diameter) were also obtained. The chicks reared at 20º C had lower weight gain and ingested less food than chicks reared at 25°C and less water than chicks kept at 35°C. Relative weights of the liver, heart, and gizzard were affected by environmental temperature, whereas yolk sac and bursa of Fabricius relative weights were not. The data showed that all bone parameters increased with bird age. Environmental temperature did not affect tibia or femur width, however a significant increase in bone weight and length occurred with increasing environmental temperature. These results indicate that brooding temperature of 20°C during the first seven days post-hatching was stressful decreasing broiler bone development and reducing chicks body weight. UNESP FCAV Depto. de Zootecnia UNESP FCAV Depto. de Morfologia e Fisiologia Animal UNESP FCAV Depto. de Ciências Exatas UNESP FCAV Depto. de Zootecnia UNESP FCAV Depto. de Morfologia e Fisiologia Animal UNESP FCAV Depto. de Ciências Exatas

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:08:06Z No. of bitstreams: 0 Made available in DSpace on 2013-08-22T19:08:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-12-01 Made available in DSpace on 2013-09-30T17:55:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-12-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:15:44Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T13:15:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-12-01 Foram utilizadas doze codornas domésticas, divididas em três grupos de quatro aves cada. As aves receberam rações padronizadas contendo 16%, 20% e 24% de proteína, sendo alimentadas por um período de quinze semanas, quando foram pesadas e sacrificadas imediatamente. Após a abertura da cavidade abdominal e evisceração do trato gastrointestinal, os ovários e ovidutos foram dissecados e pesados. Com o auxílio de um paquímetro mediu-se o comprimento das partes do oviduto: infundíbulo, magno, istmo, útero e vagina e avaliou-se o número de pregas do magno e do istmo. Foram realizados cortes histológicos do magno, istmo e útero onde se obteve medidas das espessuras das camadas epitelial e glandular. Os dados foram submetidos a análise de variância (ANOVA) e observou-se que não houve diferenças significativas no peso corporal, peso do ovário, do oviduto e nos comprimentos das partes do oviduto bem como no número de pregas do magno e ístmo. Verificou-se diferenças significavas na espessura da camada epitelial do istmo de aves alimentadas com 20% de proteína na ração. Além disso, houve diferenças significativas na espessura da camada glandular do magno, istmo e útero das aves alimentadas com 24% de proteína na ração em relação às aves que receberam 16% e 20% de proteína. O nível de 24% de proteína aumentou a espessura da camada glandular do magno, ístmo e útero o que poderia resultar em melhoria no peso dos ovos e na espessura da casca. The twelve domestic quail used in this study were divided into three groups, each with four birds. The groups received each a different treatment using standard feed containing three different levels of protein (16%, 20% and 24%). The treatments were continued for a period of fifteen weeks, after which the quails were immediately weighed and then killed. After opening the abdominal cavity and eviscerating the gastrointestinal tract, the ovaries and oviducts were dissected and weighed. Using a packymeter, the different parts of the oviducts were measured: infundibulum, magnum, isthmus, uterus and vagina. The number of folds present in the magnum and the isthmus were evaluated. Histologic sections of the magnum, isthmus and uterus were used to measure the thickness of their epithelial and glandular layers. The data obtained was statistically analysed using a Variance analysis (entirely casual distribution). It was concluded that there were no significative differences on body weight, ovary weigth, oviduct weigth and between the lengths of the different parts of the oviduct as well as regarding the number of folds in the magnum and the isthmus. It was concluded that there was significative differences were also found regarding the thickness of the epithelial layer of the isthmus in the birds treated with the feed containing 20% protein. Moreover there was a significative difference between the thickness of the glandular layer of the magnum, the isthmus and that of the uterus in the birds treated with 24% protein feed when compared to the quails that were given a 16% and 20% protein feed. Diet with 24% protein increased the glandular layer thickness of the magnum, isthmus and uterus that it could result in improvement in the weight of the eggs and in the shell quality. UNESP FCAV Departamento de Morfologia e Fisiologia Animal UNESP FCAV Departamento de Morfologia e Fisiologia Animal

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:08:05Z No. of bitstreams: 0 Made available in DSpace on 2013-08-22T19:08:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-08-01 Made available in DSpace on 2013-09-30T18:28:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-08-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:41:29Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T13:41:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-08-01 O experimento teve como objetivo verificar a ação da apramicina (10 ppm) e dos ácidos fórmico + propiônico (0,0; 0,1 e 0,2%) no desempenho de frangos de corte sexados. A mistura dos ácidos orgânicos foi de 1:1. O delineamento foi inteiramente casualizado, em esquema fatorial 2 x 3 x 2 (apramicina x ácidos orgânicos x sexos), com 4 repetições de 45 aves por parcela, totalizando 2.160 pintos Cobb de 1 dia. As aves receberam ração à vontade. Na fase inicial, a adição da apramicina (10 ppm) e 0,1% dos ácidos orgânicos, isoladamente, melhorou o ganho de peso das aves. A adição conjunta dos produtos não promoveu ganho acumulado. Na presença da apramicina, a adição dos ácidos orgânicos piorou a conversão alimentar. Nas fases final e total, os dados de desempenho não apresentaram diferenças significativas. O rendimento de carcaça foi prejudicado com a adição conjunta da apramicina e 0,1% dos ácidos orgânicos. A trial was carried out to study isolated or combined effect of Apramicin (10ppm) and formic + propionic acids (0.0; 0.1 and 0.2%) supplementation in broilers diets. Acids mixtures were blended in a 1:1 ratio. A completely randomized design was utilized in a 2 x 3 x 2 factorial scheme (apramicim x organic acids x sex) with 4 replicates of 45 birds per experimental unit, with 2160-day-old Cobb chicks. Birds were fed ad libitum. In the initial phase, the supplementation of apramicin and organic acids (0.1%) alone, increased (p