Cost effect and growth responses of <i>Clarias gariepinus</i> juveniles fed local and commercial feeds in tarpaulin ponds

Abstract

This study evaluated growth performances, survival rates, and cost-effectiveness of using locally formulated feed compared to three  commercial feeds (Skretting, Bluecrown and Top). 4,000 Clarias gariepinus juveniles were sorted and stocked at 500 each into 8 tarpaulin  ponds. Feeding duration was 56 days and fish were fed twice daily at 5% of body weight. Assessments of growth parameters, water  quality, and cost analysis were done following standard procedure. The results showed that Skretting had the highest average weight  gain (171.80g) followed by the locally formulated feed (140.73g) then, Top feed (140.50g) and the Bluecrown (134.77g). Skretting also had  the best feed conversion ratio (FCR) of 1.48 followed by local feed which had 1.66, Top feed (1.75) and Bluecrown (1.80). The results of  economic evaluation revealed that locally produced feed was found to be significantly (P<0.05) cheaper than the commercial feeds,  costing ₦129.82 to produce 140.73g of fish flesh at ₦536.7/kg. this was followed by Bluecrown (₦206.13 to produce 134.77g at ₦820/kg),  Top feed (₦212.60 to produce 140.50g at ₦833.33/kg) and Skretting (₦377.92 to produce 171.80g of flesh at 1,400/kg). There were no  significant differences (P>0.05) in survival rates and the water parameters in the culture ponds. While Skretting was best in promoting  fish growth, locally formulated feed proved to be cost-effective and an economically competitive option.