| Registro completo |
| Provedor de dados: |
PAB
|
| País: |
Brazil
|
| Título: |
Feeding strategies and energy to protein ratio on tambaqui performance and physiology
|
| Autores: |
Santos,Marcio Quara de Carvalho
Lima,Mariana do Amaral Camara
Santos,Luciana dos
Pereira-Filho,Manoel
Ono,Eduardo Akifumi
Affonso,Elizabeth Gusmão
|
| Data: |
2013-08-01
|
| Ano: |
2013
|
| Palavras-chave: |
Colossoma macropomum
Blood parameters
Energy/protein requirement
Food restriction
|
| Resumo: |
The objective of this work was to evaluate the effect of feed deprivation and refeeding with diets containing different energy to protein ratios (E/P) on the performance and physiology of juvenile tambaqui (Colossoma macropomum). A 4x2 factorial arrangement with three replicates was used, with four E/P ratios (11.5, 10.5, 9.5, and 8.5 kcal g-1 digestible energy per protein) and two feeding regimens (with and without deprivation), during 60 days. Fish from the food-deprived group were fasted for 14 days and refed from the fifteenth to the sixtieth day, whereas the remaining fish were fed for 60 days. At the end of the experimental period, weight of fish subjected to food deprivation was lower than that of those continuously fed; however, this condition did not influence the physiological parameters analyzed. Tambaqui fed 11.5 kcal g-1 achieved lower final weight than those fed with the other diets, in both regimens. Among the physiological parameters, only plasma protein presented significant increase in fish fed 8.5 kcal g-1, in both feeding regimens, probably due to the higher dietary protein concentration. These results indicate that fish show a partial compensatory growth, and that 10.5 kcal g-1 can be recommended for the diet of juvenile tambaqui.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800024
|
| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
|
| Relação: |
10.1590/S0100-204X2013000800021
|
| Formato: |
text/html
|
| Fonte: |
Pesquisa Agropecuária Brasileira v.48 n.8 2013
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
