| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Lysine and arginine requirements of Salminus brasiliensis
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| Autores: |
Dairiki,Jony Koji
Borghesi,Ricardo
Dias,Carlos Tadeu dos Santos
Cyrino,José Eurico Possebon
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| Data: |
2013-08-01
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| Ano: |
2013
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| Palavras-chave: |
Amino acid
Dose-response
Dourado
Regression
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| Resumo: |
The objective of this work was to determine the dietary lysine (DL) and dietary arginine (DA) requirements of dourado (Salminus brasiliensis), through dose-response trials using the amino acid profiles of whole carcasses as a reference. Two experiments were carried out in a completely randomized design (n=4). In the first experiment, groups of 12 feed-conditioned dourado juveniles (11.4±0.2 g) were stocked in 60 L cages placed in 300 L plastic indoor tanks in a closed circulation system. Fish were fed for 60 days on diets containing 1.0, 1.5, 2.0, 2.5, 3.0, or 3.5 % dietary lysine. In the second experiment, dourado juveniles (27.0±0.8 g) were fed for 60 days on semipurified diets containing arginine at 1.0, 1.5, 2.0, 2.5 or 3.0%, in similar conditions to those of the first experiment. Optimal DL requirements, as determined by broken-line analysis method for final weight, weight gain and specific growth rate, were 2.15% DL or 5% lysine in dietary protein, and 1.48% DA or 3.43% arginine in dietary protein. The best feed conversion ratio is attained with 2.5% DL or 5.8% lysine in dietary protein and 1.4% DA or 3.25% arginine in dietary protein.
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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=S0100-204X2013000800032
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2013000800029
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.48 n.8 2013
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| Direitos: |
info:eu-repo/semantics/openAccess
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