Study of fatty acid profile, serum biochemical parameters and digestive enzymes activity of different fish species cultured in marine and fresh water under higher biomass: A review

Abstract

Stocking density is one of the most significant factors in deciding the efficiency and productivity of the fish. The stocking fish at low density results in high production costs, low economic gain and inadequate utilization of space. Increasing stocking density may activate stress response which negatively affects growth parameters, survival, behavior, health, feeding of fish. Serum cortisol, triglyceride, alanine aminotransferase, aspartate transaminase, alkaline phosphatase and DHA, PUFAs increased significantly as the stocking density increased. So, for good yield fish should be stocked at optimum level. Optimum stocking density is the level where the maximum yields are reached. As stocking density vary from species to species, before stocking any species one must figure out the optimum stocking density to obtain beneficial results.