Formulation of Quality Fish Feeds From Indigenous Raw Materials and Their Effects on Growth and Maturity of Cirrhinus Mrigala
An experiment was conducted for 90 days in cemented cisterns to evaluate the effect of three dietary protein levels on the growth and body composition of Cirrhinus mrigala. Three different iso-caloric feeds containing 30%, 35% and 40% dietary protein levels were prepared from indigenous feed ingredients and were fed to Cirrhinus mrigala at the rate of 8% of total body weight. The overall growth of Cirrhinus mrigala fed with different levels of dietary protein was found to increase with the increase of dietary protein levels in feed C followed by feed B and significantly lowest in feed C. The gonadosomatic index (GSI) values of both male and female were higher in Feed-C (40% protein) compared to the Feed-A (30%) and Feed-B (35%). There was significant differences (P<0.05) between the gonadosomatic index values of Cirrhinus mrigala fed on different dietary protein levels. Statistical analysis showed that the feed at a level of 40% protein was significantly different from other feeds and most effective in changing the growth and maturity of Cirrhinus mrigala. Key Words: Formulated Feed, Maturity, Cirrhinus Mrigala, Body Composition.