Exigências de lisina e metionina+cistina digestíveis para frangos de corte na fase final

Maria José Baptista Barbosa; Otto Mack Junqueira; Marcelo de Oliveira Andreotti; Luciana Cardoso Cancherini

doi:10.4025/actascianimsci.v24i0.2516

Requirements of digestible lysine and methionine+cystine of broilers in final phase

Maria José Baptista Barbosa UEM
Otto Mack Junqueira UNESP
Marcelo de Oliveira Andreotti UNESP
Luciana Cardoso Cancherini UNESP

DOI: https://doi.org/10.4025/actascianimsci.v24i0.2516

Abstract

The objective of this paper was to study digestible lysine and methionine+cystine levels in broiler chickens of 43 to 56 days old, that received rations with 3 lysine levels (0.78%, 0.86% and 0.95%) and 3 met+cis levels (0.65%; 0.72% and 0.79%). Performance, carcass yield, abdominal fat and the chemical composition of the breast meat were not affected by lysine and met+cis. The rate of efficiency of the lysine was influenced by the lysine levels, but was not for the met+cis levels. The rate of methionine efficiency was not influenced by the lysine, but met+cis influenced this parameter. Results showed that for the performance and carcass yield; the levels of digestible lysine and met+cis, 0.78% and 0.65% could be used respectively.

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Author Biography

Maria José Baptista Barbosa, UEM

Possui graduação em Zootecnia pela Faculdade de Zootecnia de Uberaba (1987), mestrado em Produção Animal Zootecnia pela Universidade Federal de Minas Gerais (1992) e doutorado em Zootecnia pela Universidade Estadual Paulista Júlio de Mesquita Filho (2000). É professor efetivo na Universidade Estadual de Maringá desde 1993. Até 2003 lecionou nos cursos de Zootecnia e Agronomia/ câmpus Sede e a partir de 2003 leciona na Medicina Veterinária e na Agronomia/ câmpus de Umuarama-CAU. Tem experiência na área de Zootecnia, com ênfase em Exigências Nutricionais dos Animais e Avaliação de Alimentos, atuando principalmente nos seguintes temas: frangos de corte e poedeiras comerciais. Currículo Lattes

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Published

2008-04-29

How to Cite

Barbosa, M. J. B., Junqueira, O. M., Andreotti, M. de O., & Cancherini, L. C. (2008). Requirements of digestible lysine and methionine+cystine of broilers in final phase. Acta Scientiarum. Animal Sciences, 24, 1001-1006. https://doi.org/10.4025/actascianimsci.v24i0.2516

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Issue

Vol 24 (2002)

Section

Animal Science

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0.9

2019CiteScore

29th percentile