Performance and digestibility of Nile tilapia fed with pineapple residue bran./Desempenho e digestibilidade da tilapia do Nilo recebendo dietas com farelo de residuo de abacaxi
Two experiments were conducted, the first being the digestibility of feed and the second performance in an attempt to evaluate the residue of pineapple bran in diets for Nile tilapia. Eighty animals weighing 63.9 [+ or -] 0.79 g in a completely randomized design were used to test the digestibility i...
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Veröffentlicht in: | Acta scientiarum. Animal sciences 2012-01, Vol.34 (1), p.41-47 |
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Zusammenfassung: | Two experiments were conducted, the first being the digestibility of feed and the second performance in an attempt to evaluate the residue of pineapple bran in diets for Nile tilapia. Eighty animals weighing 63.9 [+ or -] 0.79 g in a completely randomized design were used to test the digestibility in order to evaluate the apparent digestibility of dry matter, crude protein, gross energy, digestible energy and digestible protein. In the performance of 240 juveniles were distributed in three ranges of weights: 34.9 [+ or -] 0.06, 44.4 [+ or -] 0.27 and 55.5 [+ or -] 0.10 g, in order to evaluate performance, yield Housing and somatic indices of Nile tilapia. The design was a randomized block with three blocks, with four treatments and five repetitions, rations in both experiments contained four levels of inclusion of pineapple bran residue (0, 5, 10 and 15%). The digestibility of the diets were: dry matter (76.17, 75.42, 75.31 and 75.77%), crude protein (87.90, 90.24, 89.51 and 89.03%) gross energy (79.12, 79.33, 79.07 and 77.48%), digestible energy (3649, 3559, 3560 and 3190 kcal kg-1) and digestible protein (29.28, 30.35, 29.82 and 29.79%), respectively. It was observed the significant effect on the carcass without head, so we recommend the inclusion of up to 10.39% for the inclusion of pineapple bran residue in diets of Nile tilapia. Keywords: alternative ingredient, Oreochromis nihtkus, waste of fruit. Desempenho e digestibilidade da tilapia do Nilo recebendo dietas com farelo de residuo de abacaxi Foram realizados dois experimentos, sendo o primeiro de digestibilidade das racoes e o segundo de desempenho na tentativa de avaliar o farelo do residuo de abacaxi nas dietas para tilapia do Nilo. Foram utilizados para o ensaio de digestibilidade 80 animais com peso de 63,9 [+ or -] 0,79g, em um delineamento experimental inteiramente casualizado, com o objetivo de avaliar o coeficiente de digestibilidade aparente da materia seca, proteina bruta, energia bruta, energia digestivel e proteina digestivel. No experimento de desempenho foram utilizados 240 juvenis, distribuidos em tres faixas de pesos: 34,9 [+ or -] 0,06; 44,4 [+ or -] 0,27 e 55,5 [+ or -] 0,10 g, com o objetivo de avaliar desempenho produtivo, rendimento de carcaca e indices somaticos da tilapia do Nilo. O delineamento utilizado foi em blocos casualizados com tres blocos, com quatro tratamentos e cinco repeticoes, As racoes em ambos os experimentos continham quatro niveis de inclusao do farelo de re |
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ISSN: | 1806-2636 1807-8672 |
DOI: | 10.4025/actascianimsci.v34i1.12083 |