Farelo de batata-doce como alimento alternativo em rações para juvenis de tilápia do nilo

Abstract

The presente work describes the evaluation of productive performance, morphophysiological parameters and the economic viability of Nile Tilapia fingerlings fed with levels of potato bran in the diet. The activies were developed in the aquaculture laboratory ( Laqua )/ CECA – UFAL , the experimental period lasted 60 days . 120 fry distributed in 24 experimental aquariums were used in a water recirculation system with biofilter , using four treatments with the respective additions of potato bran (T1- 0 % T2- 8 % T3 – 16% T4 - 24 % ) with five replications each , and five fish for each , experimental unit , arranged in a completely randomized design.. Food was offered three times a day . At the end of the experimental period for biometrics ( weight and size) , data collection was performed. Considering the evaluated paraneters , the inclusion of potato bran can be replaced by 100% in replacement of corn for juvenile Nile Tilapia , as there was no loss in performance.