Different criteria of feed formulation for broilers aged 43 to 49 days

Revista Brasileira de Ciência Avícola

Lf Araújo²  Om Junqueira¹  Css Araújo¹  De Faria²  Mo Andreotti¹ 

[1] ,Universidade de São Paulo Faculdade de Zootecnia e Engenharia de Alimentos Pirassununga SP

关键词: Broilers;    carcass yield;    digestible amino acids;    performance;   

DOI  :  10.1590/S1516-635X2004000100008

来源: SciELO

【 摘 要 】

An experiment was carried out to evaluate different formulated feeds for broilers from 43 to 49 days of age. Six hundred male Cobb broilers were distributed in a completely at random experimental design with 3 treatments (3 different criteria of feed formulation) and 4 repetitions per treatment, with 50 birds each. Diets were formulated with different criteria of digestible amino acid inclusion (methionine, methionine+cystine, lysine and threonine), according to the profiles recommended by Baker and Chung (1992), Degussa (1997) and Rostagno (2000) Live performance and carcass yield were evaluated in birds fed the different diets from 43 to 49 days of age). The profile established by Degussa (1997) resulted in best live performance. All profiles supplied the nutritional requirements of the birds for adequate carcass yield, but Degussa (1997) profile resulted in highest breast yield.

【 授权许可】

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