Effect of Wolffia sp. as Supplemental Feed on Growth Performance and Body Composition of Indian Major Carp, Labeo rohita (Hamilton, 1822) Fingerlings

Abstract

The effect of Wolffia sp. as supplemental feedon growth performance and the body composition of Indian major carp, Labeo rohita fingerlingswere examined. The experiments were carried out in the laboratory in triplicates. The commercial feed of tokyu was used as feed for all experimental fish. In addition to tokyu, 10 gram wet weight of Wolffia sp. was directly introduced as supplemental feed for all experimental fish except control. Good survival rate was observed in control (95%) and experiments (97%). At the end of experiments, the growth of all Wolffia sp. fed L. rohita showed significantly higher (p<0.05) than control fish. More significantly differentin weight gain, protein efficiency ratio, food conversion ratio, specific growth rate, means daily weight gain and condition factor were also found in Wolffia sp. fed L. rohita than that of control. The protein content of Wolffia sp. fed L. rohita was better than that of control fish. All experimental fish gave positively length weight relationships and L. rohita consumed Wolffia sp. throughout the experimentation was observed. The present study can be concluded that the use of Wolffia sp. improve the nutritional quality of L. rohita fingerlings.