Artificial insemination process of large yellow croaker

Abstract

The invention provides an artificial insemination method of large yellow croakers and relates to the field of artificial insemination of fish. The method comprises the following steps: intensively culturing parent fish in the same pool, labeling parent fish for artificial insemination, culturing the labeled parent fish together with reproductive parent fish in the same pool with nutrient enhancers, building a natural spawning / induced spawning pool, building an artificial insemination / induced spawning pool 2-200 m away from the natural spawning / induced spawning pool to allow the parent fish for artificial insemination to feel the sound and behavior of parent fish in the natural spawning pool, injecting oxytocin to mature parent fish for artificial insemination and reproductive parent fish at the same time, putting the mature parent fish for artificial insemination and reproductive parent fish in the natural spawning / induced spawning pool and the artificial insemination / induced spawningpool respectively after spawning inducement, selecting female fish in good parturient state in the artificial insemination / induced spawning pool according to the abdominal circumference, two hours before natural spawning and five hours after natural spawning, and performing artificial insemination.

Description

technical field [0001] The invention relates to artificial insemination of fish, in particular to an artificial insemination method of large yellow croaker. Background technique [0002] Large yellow croaker (Pseudosciaena crocea) is the fish with the largest marine aquaculture output in my country, and it is also one of the six most advantageous export aquaculture aquatic products in China. In recent years, research on the genetic improvement technology of large yellow croaker for the purpose of improving muscle quality, growth rate and disease resistance has been carried out by using various breeding techniques such as cross breeding, polyploid breeding and family building. Among them, stable artificial insemination operation is one of the important basic technologies. At present, in the on-site operation of large yellow croaker genetics and breeding research, there is a common phenomenon that the eggs are difficult to fertilize or the hatching rate of fertilization is lo...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an artificial insemination method for large yellow croaker in view of the problems of poor stability and low insemination hatching rate of the existing large yellow croaker artificial insemination technology