Effects of some supplemented diets on the growth performance and nutrient contents of Gulsha, Mystuscavasius (Hamilton, 1822) in Bangladesh

Abstract

Gulsha (Mystuscavasius) is the most common aquaculture fish species in Bangladesh. The fish is consumed by the people for their rich protein and higher nutrient content. The objective of the present study was to estimate the growth performance and nutrient content of gulsha (Mystuscavasius). To estimate the effects of different diets on growth performance and nutrient content of gulsha .An experiment was conducted for fourth month in concrete small pond located in BCSIR (Bangladesh Council of Scientific and Industrial Research), Dhaka. This study was conducted during the month of June, 2016 to February, 2017. The nutrient content analysiswas done in Soil and Environmental section,Biological Research Division, BCSIR, Dhaka. The growth performance of gulshawas found to be maximum with rice bran +spirulinaand lowest with commercial feed. It can be stated that the growth performance of gulshacould be improved by rice bran + spirulina. The findings of the investigation showed that Condition factor found in treatment T1 was higher than of at fourth month culture period. Specific growth rate of treatment T1 with rice bran + spirulinawas higher than treatment T2 with commercial feed at fourth month of rearing. Treatment 1 has the best proximate composition and nutrient content for human nutritional interest and thus it was found to be better option to produce healthy fish for human consumption. The findings of this research suggest that raising gulsha with rice bran and Spirulina in ponds could help in better growth performance and improve nutrient content of gulsha.