THE EFFECT OF FOUR PROTEIN LEVELS OF THE SACHA INCHI FLOUR Plukenetia volubilis (EUPHORBIACEAE) IN THE GROWTH OF BLACK STRIPE YOUNG FISH Myleus schomburgkii (PISCES, SERRASALMIDAE) BREADED IN CAPTIVITY

The present study aimed to evaluate the growth of fingerlings of Myleus schomburgkii, using four levels of crude protein (23, 25, 27 and 29%) from sacha inchi flour Plukenetia volubilis (Euphorbiaceae). Where was used a total of 48 specimens which were divided into 12 M. schomburgkii floating cages with a seeding density of four individuals per cage. The animals were fed daily for 168 days with a feed rate equivalent to 4% of the biomass in each cage. The fish diets T1, T3 and T4 reached an average weight of 50.67, 51.50 and 51.42 g. The results show that fish fed diet T2 had higher growth at the end of the experiment obtaining an average weight of 60.67 g. However, all the variables analyzed as final weight, relative growth rate and specific growth rate, were not significantly influenced (P> 0.05) by any of the diets from the sacha inchi. In terms of feed conversion the fish were not efficient assimilating the diet that was offered to them. This indicates that the productive performance of fish fed diets with high percentage of sacha inchi, Plukenetia volubilis in food ration for black band, schomburgkii Myleus was not significantly influenced (P> 0.05) in growth in both weight and length.