Data/hora: 10/06/2024 08:05:50

Provedor de dados: | 89
País: | Brazil
Título: | Lysine and methionine + cystine for laying hens during the post-molting phase
Autores: | Domingues,C H de F; Sgavioli,S; Praes,M F F M; Duarte,K F; Castiblanco,D M C; Santos,E T; Alva,J C R; Junqueira,O M.
Data: | 2012-09-01
Ano: | 2012
Palavras-chave: | Sulfur amino acids; Amino acid ratios; Forced molting; Morphometrics.
Resumo: | One experiment was conducted to evaluate the effect of using different lysine and methionine + cystine levels on body weight recovery, performance, and egg quality of laying hens during the post-molting period. In this trial, 432 Isa Brown layers, with 72 weeks of age, were distributed in 54 cages according to a completely randomized design with six treatments and nine replicates of eight birds each. During the resting period, six diets with different digestible lysine and methionine + cystine levels were used, as follows: 0.48% digestible lysine and 0.43% methionine + cystine; 0.48% digestible lysine and 0.47% methionine + cystine; 0.48% digestible lysine and 0.52% methionine + cystine; 0.56% digestible lysine and 0.50% methionine + cystine; 0.56% digestible lysine and 0.56% methionine + cystine; 0.56% digestible lysine and 0.62% methionine + cystine. Data were submitted to analysis of variance and means were compared at by Tukey’s test at 5% probability level. The different lysine and methionine + cystine levels in the diets fed during the resting period significantly influenced layer performance. The diet containing 0.56% lysine and 0.56% methionine + cystine promoted higher egg weight eggs during the second production cycle.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000300005
Editor: | Fundação APINCO de Ciência e Tecnologia Avícolas
Relação: | 10.1590/S1516-635X2012000300005
Formato: | text/html
Fonte: | Brazilian Journal of Poultry Science  v.14 n.3 2012
Fonte: | info:eu-repo/semantics/openAccess