Tilapia is a tropical fish, belonging to Perciformes and Cichlidae, with the characteristics of fast growth, mixed feeding habits, few diseases and strong adaptability. The distribution of tilapia aquaculture in my country is extremely unbalanced. In southern China, due to the better climate, tilapia aquaculture, especially the aquaculture of Tilapia fingerlings, has developed rapidly, and its output accounts for about 20% of the total output of local freshwater aquaculture- 40%, becoming one of the important freshwater aquaculture species in the southern region.
