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| Santos,Marcio Quara de Carvalho; Lima,Mariana do Amaral Camara; Santos,Luciana dos; Pereira-Filho,Manoel; Ono,Eduardo Akifumi; Affonso,Elizabeth Gusmão. |
| 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colossoma macropomum; Blood parameters; Energy/protein requirement; Food restriction. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800024 |
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| Santos,Marcio Quara de Carvalho; Oishi,César Augusto; Pereira Filho,Manoel; Lima,Mariana do Amaral Camara; Ono,Eduardo Akifumi; Affonso,Elizabeth Gusmão. |
| The present study evaluated the effectiveness of Amazonian nut (Bertholletia excelsa) as an alternative source of vegetal protein in tambaqui (Colossoma macropomum) diet. Performance and physiological status of fish fed for 60 days were evaluated. Four experimental isonitrogenous diets with 36% crude protein were formulated with increasing levels of nut meal (0, 10, 20 and 30%). Results showed the same growth performance for fish fed with diet with different levels of Amazonian nut than that without this ingredient (control). Analysis of physiological parameters (hematocrit, erythrocyte number, hemoglobin concentration, hematimetric indexes, total plasma protein and plasma glucose) corroborate these results, with no significant differences among... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bertholletia excelsa; Colossoma macropomum; Physiological stress; Regional ingredient; Nutrition; Fish farming. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010001000021 |
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