Data/hora: 12/06/2024 04:56:04

Provedor de dados: | 42
País: | Brazil
Título: | Influence of low-protein diet with different levels of amino acids on laying hen performance, quality and egg composition
Autores: | ALAGAWANY,MAHMOUD; EL-HINDAWY,MOHAMED M.; EL-HACK,MOHAMED E. ABD; ARIF,MUHAMMAD; EL-SAYED,SABRY ABD.
Data: | 2020-01-01
Ano: | 2020
Palavras-chave: | Layers; Low-protein diet; Amino acids; Production; Egg quality; Blood.
Resumo: | Abstract  The present study aimed to investigate the consequences of dietary levels of crude protein (CP) and total sulfur amino acids (TSAA, Met+Cys) on productive performance, egg quality and egg components for Lohmann Brown laying hens through 18-34 weeks of age. A 2×3 factorial design experiment was conducted using two levels of CP (16 and 18 %) and three levels of Met+ Cys (0.67, 0.72 and 0.77 %). A total of 144 Lohmann Brown laying hens at 18 weeks of age were randomly divided into 6 treatment groups. The best values of final body weight and body weight change were recorded by the hens fed 18 % CP diet. Increasing dietary CP up to 18 % accompanied with the best (P&gt; 0.01) feed conversion, egg weight and egg mass. The combination between low-CP diet (16 %) and 0.72 % Met+ Cys gave the best percentage of egg production. The majority of egg quality traits were not significantly altered by dietary treatments. The interaction between CP and Met+Cys levels had a statistical (P&gt;0.01) impact on egg content of moisture and total solids only. It could be concluded that the best production criteria could be obtained by using 0.72% Met+Cys. Moreover, dietary level of 16 or 18 % CP with 0.72% Met+Cys is recommended for feeding Lohmann hens.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100712
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-3765202020180230
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.92 n.1 2020
Fonte: | info:eu-repo/semantics/openAccess