Micropterus salmoides out-of-season breeding and large-scale fry large-scale breeding method

Abstract

The invention provides a micropterus salmoides out-of-season breeding and large-scale fry large-scale breeding method. The method comprises the following steps of 1, population breeding of parents; 2, carrying out first-time intensified cultivation on micropterus salmoides breeding parents; 3, simulating overwintering treatment; 4, carrying out second-time intensified cultivation on the micropterus salmoides breeding parents; 5, prenatal ripening acceleration and artificial spawning induction; 6, artificial incubation; and 7, large-scale fry breeding. According to the method, key technologies such as the population breeding of the parents, two-time intensified breeding, illumination and low-temperature treatment, artificial ripening and spawning induction are adopted, the parents with robust physique are screened and bred, spawning induction breeding can be achieved twice a year, specifically, after spawning in spring, parent fish gonads can be mature again in the current year under proper breeding condition, so that out-of-season breeding and aquaculture are achieved; the out-of-season breeding and large-scale fry large-scale breeding of the micropterus salmoides are completed on a large-scale for the first time, out-of-season large-scale fry of the micropterus salmoides are bred, the out-of-season large-scale fry of the micropterus salmoides are obvious in growth advantage and high in stress resistance, and balanced marketing of the micropterus salmoides from August to October in the next year can be achieved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for off-season breeding and large-scale seedling cultivation of California perch, which is a method for producing off-season large-size Californian perch seedlings by using fish breeding technology, parental screening and innovative cultivation technologies method. Background technique [0002] California perch (Micropterus salmoides), also known as largemouth bass, belongs to Osteichthyes, Perciformes, Centrarchidae, Micropterus, native to the Mississippi River system in America , is a carnivorous fish with delicious meat, no intermuscular spines, fast growth, easy to catch, and wide temperature adaptability. Since it was introduced into my country from the United States in the 1980s, it has developed into one of the main varieties of freshwater aquaculture in my country. Its meat is pure white and tender, delicious and delicious, with strong disease re...

AI Technical Summary

Problems solved by technology

[0005] So far, although there have been reports on off-season California perch seedlings, it has been confirmed that there is no stable supply source of off-season large-scale California perch seedlings on the market

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