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Use of shrimp protein hydrolysate in Nile tilapia (Oreochromis niloticus, L.) feeds |
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| Authors: | Albino Luciani Gonçalves Leal Patrícia Fernandes de Castro João Paulo Viana de Lima Eudes de Souza Correia Ranilson de Souza Bezerra |
| Institution: | 1. Companhia Hidro Elétrica do S?o Francisco – CHESF, Rua Delmiro Gouveia, 333, Bongi, Recife, PE, CEP 50761-901, Brazil 2. Embrapa Meio-Norte, Caixa Postal 341, Parnaíba, PI, 64200-970, Brazil 3. Instituto Agron?mico de Pernambuco – IPA, Av. General San Martin, 1371, Bongi, Recife, PE, CEP 50761-000, Brazil 4. Laboratório de Sistemas de Produ??o Aqüícola, Departamento de Pesca e Aqüicultura, UFRPE, Av. Dom Manoel de Medeiros, s/n, Dois Irm?os, Recife, PE, 52171-900, Brazil 5. Laboratório de Enzimologia, Departamento de Bioquímica, Universidade Federal de Pernambuco, Cidade Universitária, Recife, PE, 50670-420, Brazil 6. Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco, Cidade Universitária, Recife, PE, 50670-420, Brazil |
| Abstract: | A 45-day feeding trial was carried out to evaluate the use of shrimp protein hydrolysate (SPH) in diets for Oreochromis niloticus, L. SPH was included in isonitrogenous diets replacing fish meal protein by 0, 5, 10, and 20% and offered to Nile tilapia juveniles (1.7 ± 0.4 g) stocked in 40-L glass aquaria. The inclusion of SPH produced no significant differences (P ≥ 0.05) in final weight, survival, weight gain, average daily gain, specific growth rate, feed conversion ratio, protein efficiency ratio, or apparent net protein utilization. The inclusion of SPH Nile tilapia diets significantly affected (P < 0.05) the final fish body composition. Protein and ash contents decreased and fat content increased slightly with the increase in SPH. This study has demonstrated that SPH is a promising protein feedstuff and could account for as much as 6% of Nile tilapia diets with no adverse effects on growth and nutrient utilization. |
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