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Growth performance of juvenile pacu ( Piaractus mesopotamicus ) and dourado ( Salminus brasiliensis ) fed with lyophilized bovine colostrum

2015; Wiley; Volume: 47; Issue: 11 Linguagem: Inglês

10.1111/are.12805

1365-2109

Raul Machado-Neto, Débora Botéquio Moretti, Wiolene Montanari Nordi, Thaline Maira Pachelli da Cruz, José Eurico Possebon Cyrino,

Reproductive biology and impacts on aquatic species

Growth performance was evaluated in juvenile pacu (Piaractus mesopotamicus) and dourado (Salminus brasiliensis) fed diets containing 0%, 10% and 20% of lyophilized bovine colostrum for 60 days. The performance variables of weight gain, relative weight gain, feed intake, feed conversion ratio, specific growth rate, total protein intake and protein efficiency ratio were evaluated as well as apparent digestibility coefficients of protein and energy in the diets. Inclusion of bovine colostrum did not induce differences in the performance of pacu and dourado (P > 0.05), indicating that the diets were adequate and met the nutritional needs of the juveniles. The protein digestibility in both species was improved with the inclusion of the bovine lacteal secretion. Based on the variables studied, the diets with lyophilized bovine colostrum inclusion were nutritionally suitable for both pacu and dourado indicating the possibility to use this lacteal secretion as a partial substitute of dietary protein.