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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

Made available in DSpace on 2018-11-26T15:45:27Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-07-01. Added 1 bitstream(s) on 2019-10-09T18:25:17Z : No. of bitstreams: 1 S1516-635X2017000300417.pdf: 100876 bytes, checksum: f327b6c2bf2cf24c85b0e4b180dc4aa7 (MD5) This study was conducted to determine the optimum standardized ileal digestible isoleucine to lysine (SID Ile: Lys) ratio for meat-type quails from 15 to 35 d of age. Three hundred fifty not-sexed meattype quails (Coturnix coturnix coturnix) were randomly assigned into five treatments, with seven replicates of 10 quails each. An isoleucinedeficient corn-soybean meal-based diet was formulated and graded supplemented with L-isoleucine (99%) to obtain diets containing SID Ile: Lys ratios of 55,61, 67, 73, and 79%. Data were analyzed as oneway ANOVA and optimum SID Ile: Lys was estimated by polynomial (linear and quadratic) regression. Statistical differences were considered when p< 0.05. Quail performance from 15 and 21 d and 15 and 28 d of age was not affected by the treatments. From 15 to 35 d of age, body weight gain and body weight exhibited a quadratic response to increasing dietary SID Ile: Lys ratios, and were optimized at 66 and 67% SID Ile: Lys, respectively. Feed conversion ratio was not influenced by SID Ile: Lys ratios in any of the phases assessed herein. Based on the results, the optimum SID Ile: Lys ratio for meat-type quails from 15 to 35 d of age is 67%. Univ Fed Vicosa, Vicosa, MG, Brazil Inst Fed Sudeste Minas, Rio Pomba, MG, Brazil Univ Estadual Paulista, Jaboticabal, SP, Brazil Univ Estadual Paulista, Jaboticabal, SP, Brazil

Made available in DSpace on 2018-11-26T15:44:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-04-01. Added 1 bitstream(s) on 2019-10-09T18:25:16Z : No. of bitstreams: 1 S1516-635X2017000200185.pdf: 106175 bytes, checksum: 917c445f269269a58edcfff127f18701 (MD5) This study was conducted to estimate the dig. valine to lysine (Val:Lys) ideal ratio for meat-type quails from 15 to 35 d of age. A total of 385, 15-day-old not sexed quails, were randomly assigned to five treatments, each one seven times replicated with eleven quails per experimental unit. Experimental treatments consisted of five dig. Val: Lys ratios (0.65; 0.70; 0.75; 0.80 and 0.85). Ideal dig. Val: Lys ratio was estimated using polynomial regression and linear broken-line regression model. Significant effect was considered when p

To determine the apparent (AIDCP) and standardized (SIDCP) ileal digestibility coefficients of the protein and the apparent (AIDAA) and standardized (SIDAA) ileal digestibility coefficients of amino acids from biscuit bran and wheat gluten were used six castrated males swine in growth, on average weight from 22 to 60kg, with a T cannula on the terminal ileum, distributed in a randomized block design with three treatments, two periods and two repetitions per period. Each animal was considered a repeat. Treatments consisted of a protein free diet (PFD) for determination of the endogenous loss, PFD + biscuit bran (BB) and PFD + wheat gluten (WG). Each period lasted for six days, five days of adaptation of animals to the diet and 24 hours of collection of ileal digestion. The AIDCP of BB and WG were 82.33 and 90.07%, respectively and the SIDCP of BB and WG were 89.17% and 95.60%, respectively. The SIDAA were on average 80.84% (lysine), 83.94% (threonine), 90.57% (methionine + cystine) and 87.15% (valine) to BB. The SIDAA for the WG were on average 91.01% (lysine), 90.97% (threonine), 95.82% (methionine + cystine) and 90.04% (valine). The SID of protein and essential amino acids and non-essential elements identified in this study were on average, respectively, 89.17%, 88.54% and 89.20% of biscuit branand 95.60%, 93.71% and 89.20% of wheat gluten.

The goal of this study was to evaluate the effect of the dietary levels of Bacillus subtilis (BS) on performance, egg quality and excreta moisture of hens. A total of 240 Hy-line W-36 layers, between 25 and 45 weeks of age, were distributed according to a randomized block experimental design into 4 treatments with 10 replicates of 6 birds each. The following treatments were evaluated: basal diet with no probiotic (control, T1); basal diet containing BS at 8×10 5 CFU/g feed (T2); basal diet containing BS at 4×10 5 CFU/g feed (T3); and basal diet containing BS at 3×10 5 CFU/g feed (T4). Feed intake (FI), egg production (EP), egg weight (EW), egg mass (EM), feed conversion ratio per dozen eggs (FCRD) and feed conversion ratio per egg mass (FCRM), yolk, eggshell, albumen and excreta dry matter (EDM) content were evaluated. Feed intake, FCRD, and egg component were not influenced (P>0.05) by the treatments. Dietary supplementation with BS at 8×10 5 CFU/g feed compared to control increased (P 0.05) in FCRM. Excreta dry matter was on average 4.67% higher (P 5 CFU/g feed of B. subtilis improves the egg production and reduces excreta moisture of layers.

O experimento foi conduzido no Setor de Avicultura do Departamento de Zootecnia da Universidade Federal de Viçosa, a fim de avaliar os valores energéticos de alguns alimentos para frangos de corte. O experimento teve como objetivo determinar os valores de energia metabolizável aparente (EMA) e energia metabolizável aparente corrigida pelo balanço de nitrogênio (EMAn), além da determinação da composição química dos alimentos. O método tradicional de coleta de excretas foi utilizado em frangos de corte, no período de 14 a 24 dias de idade. Os animais foram distribuídos em um delineamento inteiramente casualizado, sendo que cada tratamento contou com seis repetições de seis aves por unidade experimental. Cada alimento substituiu a ração referência nos níveis de 30 a 40%, de acordo com o tipo de alimento. As aves foram alojadas em baterias metálicas com bandejas para coleta de excretas. Os valores de EMAn (kcal/kg) com base na matéria natural dos alimentos energéticos foram: milheto inteiro, 3136 kcal/kg; milheto moído grosso, 3152 kcal/kg; milheto moído fino, 3170 kcal/kg; milho-1, 3247 kcal/kg; milho-2, 3368 kcal/kg; milho gelatinizado, 3029 kcal/kg; sorgo, 3221 kcal/kg; casca de soja, 913 kcal/kg; arroz parboilizado, 1774 kcal/kg e arroz integral, 2493 kcal/kg. An experiment was conducted in the Poultry Sector of the Animal Science Department of Universidade Federal de Viçosa in order to evaluate the energy values of some feedstuffs for broilers. The experiment aimed to determinate the values of apparent metabolizable energy (AME) and apparent metabolizable energy corrected by the nitrogen balance (AMEn), besides the determination of the chemical composition of the feedstuffs. The traditional method of excrete collection was used on broiler chicks, in the period from 14 to 24 days of age. The animals were distributed in a completely randomized design where each treatment consisted of six replicates of six birds each. Each food substituted the reference ration in the levels of 20, 30 or 40%, depending on the food type. The broilers were housed in metallic batteries with trays for excrete collection. The values of AMEn (Kcal/kg) based on the natural matter of the energetic foods were: Millet whole grain, 3136 kcal/kg; grossly ground millet, 3152 kcal/kg; finely ground millet, 3170 kcal/kg; corn-1, 3247 kcal/kg; corn-2, 3368 kcal/kg; gelatinized corn, 3029 kcal/kg; sorghum, 3221 kcal/kg; soybean hulls, 913 kcal/kg; parboiled rice, 1774 kcal/kg and brown rice, 2493 kcal/kg.

This experiment was conducted to evaluate the effects of dietary nitrogen-corrected apparent metabolizable energy (AMEn) levels on meat-type quail performance and carcass traits from 1 to 14d of age. A total of 1120 not sexed meat-type quails were randomly distributed to seven treatments, with eight replicates with 20 quails each. A basal corn and soybean meal-based diet was formulated to meet or exceed quail nutritional requirements, except for ME. Graded levels of soybean oil were added to the basal diet in replacement, to sand, to obtain dietary treatments (2,600; 2,700; 2,800; 2,900; 3,000; 3,100 and 3,200 KcalAMEn/kg diet). Data were analyzed as one-way ANOVA and optimum AMEn levels were estimated using polynomial regression model. Increasing in dietary AMEn levels elicited a linear decrease (p0.05) by AMEn. Based on the results, the dietary AMEn level that warrants adequate performance and carcass traits of meat-type quails from 1 to 14d of age is 2,820 Kcal/kg diet.