4 documents found, page 1 of 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...
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....
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...