The method of family breeding of red tilapia won the invention patent.

Recently, "a pedigree breeding method of red tilapia of pearl white strain" invented by Zhu Wenbin and Dong Zaijie, an assistant researcher in the Aquatic Genetics and breeding Research Office of the Freshwater Fisheries Research Center of the Chinese Academy of Fisheries Sciences, has won the national invention patent.

The invention belongs to the technical field of aquaculture and provides a family breeding method of pearl white red tilapia. The method comprises:

The main results are as follows: (1) selection of parent fish: in the population of red tilapia with serious body color differentiation, red tilapia with white body surface, no erythema, no black spots and obvious growth advantage were selected as backup parents.

(2) establishing pedigree: the selected male and female parents were put into the cage for adaptive intensive cultivation, and the artificial directional mating was carried out according to the ratio of male and female 1 ∶ 1 until hatching and seedling cultivation independently.

(3) breeding of red tilapia pearl white strain: the juvenile and adult stages of red tilapia were determined, and the families with high proportion of pearl white and red tilapia with good growth characters were selected as the basic families for the next generation breeding. According to the above methods, the pearl white red tilapia can be cultivated after 2 ~ 4 generations. The invention avoids inbreeding, effectively improves the variety degradation of red tilapia, maintains population genetic diversity, speeds up the breeding process and improves the breeding efficiency. Author: Luo Yu