The present study is to investigate the effect of selective Synthetic feed like Agrimin and Fishmin having some additive components for enhancing on certain metabolic profiles and yield parameters of the cultivable fish species like Catla catla, Labeo rohita, Cirrhinus mrigala. The fishes selected for the study are considered into two groups viz. control group and experimental group .The control group of fishes are fed with control feed i.e. Groundnut cake, rice bran. The experimental group of fishes shall further be divided into two groups, Agrimin and Fishmin which are commercially available, have been selected for the study. The first group of experimental fish was fed with control feed mixed with Agrimin. The second groups of experimental fish are being fed with control feed mixed with fishmin. Hence the feed i.e., control feed+Agrimin Fishmin, supplied to the two groups of experimental fishes shall be called as synthetic feed. Elevation of rate of fecundindity and rate of fertilization was observed when fed withe agrimin and fishmin fed fish speciest. Agrimin or fishmin treatment enhanced the fertilization rate and all the changes were found to be statistically significant over their corresponding control values.