| Registro completo |
| Provedor de dados: |
Anais da ABC (AABC)
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| País: |
Brazil
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| Título: |
Influence of low-protein diet with different levels of amino acids on laying hen performance, quality and egg composition
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| Autores: |
ALAGAWANY,MAHMOUD
EL-HINDAWY,MOHAMED M.
EL-HACK,MOHAMED E. ABD
ARIF,MUHAMMAD
EL-SAYED,SABRY ABD
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| Data: |
2020-01-01
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| Ano: |
2020
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| Palavras-chave: |
Layers
Low-protein diet
Amino acids
Production
Egg quality
Blood
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| 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> 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>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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100712
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| Editor: |
Academia Brasileira de Ciências
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| Relação: |
10.1590/0001-3765202020180230
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| Formato: |
text/html
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| Fonte: |
Anais da Academia Brasileira de Ciências v.92 n.1 2020
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| Direitos: |
info:eu-repo/semantics/openAccess
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