Encontrados 7 documentos, a visualizar página 1 de 1
Digestible tryptophan-to-digestible lysine ratio in diets for laying hens of 42...
Calderano, Arele Arlindo; Gomes, Paulo Cezar; Lelis, Guilherme Rodrigues; Donzele, Juarez Lopes; Barreto, Sérgio Luiz de ToledoPara determinar a relação ideal triptofano digestível:lisina digestível em dietas para poedeiras de 42 a 58 semanas de idade, 240 poedeiras Hy-Line W-36 com 42 semanas de idade foram distribuídas em delineamento inteiramente ao acaso com cinco tratamentos, oito repetições e seis aves por unidade experimental. Com 42 semanas de idade as aves foram submetidas aos tratamentos experimentais, que consistiram de diet...
Suplementação dietética de fitase sobre o metabolismo de nutrientes de frangos ...
Lelis, Guilherme Rodrigues; Albino, Luiz Fernando Teixeira; Silva, Carla Rodrigues da; Rostagno, Horacio Santiago; Gomes, Paulo CesarO experimento foi conduzido com os objetivos de avaliar o efeito da suplementação de fitase em dietas sobre a energia metabolizável (EMAn) e sobre os coeficientes de digestibilidade ileal aparente de matéria seca, proteína bruta, cálcio e fósforo e determinar a deposição de cinzas, cálcio e fósforo na tíbia de frangos de corte. Foram utilizados 350 frangos de corte machos Ross de 16 a 25 dias de idade, distribu...
Digestible tryptophan:digestible lysine ratio in diets for laying hens from 24 ...
Calderano, Arele Arlindo; Gomes, Paulo Cezar; Donzele, Juarez Lopes; Barreto, Sergio Luiz de Toledo; Vellasco, Cássia RampiniThe objective of this study was to determine the ideal digestible tryptophan:digestible lysine ratio in diets for laying hens from 24 to 40 weeks of age. Two hundred and forty Hy-Line W-36 laying hens at 24 weeks of age were distributed in a completely randomized design, with five treatments, eight replicates and six birds per experimental unit. The digestible tryptophan levels in the experimental diets were 1....
Diet supplementation with phytase on performance of broiler chickens
Lelis, Guilherme Rodrigues; Albino, Luiz Fernando Teixeira; Calderano, Arele Arlindo; Tavernari, Fernando de Castro; Rostagno, Horacio SantiagoThe assay was carried out to determine the effect of phytase supplementation on performance of broilers from 1 to 21 and 1 to 40 days of age. Twelve hundred and fifty male broilers (Ross) were distributed in a randomized experimental design, with five treatments, 10 repetitions and 25 birds per experimental unit. The treatments consisted of evaluating the phytase supplementation in diets with reductions in nutr...
Effect of different digestible isoleucine/lysine ratios for broiler chickens
Tavernari, Fernando de Castro; Lelis, Guilherme Rodrigues; Carneiro, Paulo Roberto de Oliveira; Vieira, Rodolfo Alves; Polveiro, Richard CostaTwo experiments were conducted to evaluate different digestible isoleucine/lysine ratios on diets for broiler chickens in the starter (7 to 21 days) and finishing (30 to 43 days) phases. For the tests, the experimental design was of randomized blocks with seven treatments (six different digestible isoleucine/lysine ratios and a control treatment) and eight repetitions of 25 and 20 birds (COBB males) per experim...
Atualização da proteína ideal para poedeiras semipesadas: treonina e valina
Lelis, Guilherme RodriguesConselho Nacional de Desenvolvimento Científico e Tecnológico; Two experiments were conducted in the poultry sector of the Department of Animal Science, Federal University of Viçosa to update the profile of ideal protein for laying hens. In the first experiment, the object of this study was to evaluate the levels of digestible threonine to determine the ideal ratio of digestible threonine/lysine in rations for ...
Suplementação dietética de fitase sobre o metabolismo de nutrientes e o desempe...
Lelis, Guilherme RodriguesConselho Nacional de Desenvolvimento Científico e Tecnológico; Two trials were conducted to evaluate the effect of phytase inclusion in broiler nutrient metabolism and performance. On the performance trial 1250 birds, Ross, 1 to 40 days of age, were randomly distributed among 5 treatments with 10 replicates with 25 birds per replicate. On the metabolism trial, 350 birds were randomly distributed in 5 treatments...