Effect of chemical disinfectant (Izal) on hatching of eggs of African catfish (Clarias gariepinus), survival and growth performance of fry.

Abstract

Eggs of matured Clarias gariepinus size ranging from 550-800 g total body weight (TBW) were treated with 0.5 ml and 1 ml izal concentrations for 60 seconds to determine its efficacy and effect on hatching, survival and growth performance of fry. Each treatment was replicated three times. The research was conducted at the Toxicology Unit Fish Farm, Federal University of Technology, (FUT), Bosso Campus, Minna. Mean fecundity did not differed significantly (P>0.05); 113943.1a, 109281.9a and 116081.9a for 0.5 ml, 1 ml and control among the treatments. Percentage fertilization differed significantly (P