Lysine and Methionine plus Cystine for Laying Hens During the Post-Molting Phase

Autor: Domingues, C. H. de F. [UNESP], Sgavioli, S. [UNESP], Praes, M. F. F. M. [UNESP], Duarte, K. F. [UNESP], Castiblanco, D. M. C. [UNESP], Santos, E. T. [UNESP], Alva, J. C. R. [UNESP], Junqueira, O. M. [UNESP]
Přispěvatelé: Universidade Estadual Paulista (Unesp)
Jazyk: angličtina
Rok vydání: 2012
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Zdroj: Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Made available in DSpace on 2020-12-10T16:37:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-07-01 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. Univ Estadual Paulista, Jaboticabal, SP, Brazil Univ Estadual Paulista, Jaboticabal, SP, Brazil
Databáze: OpenAIRE
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