Method for mullet artificial breeding in batches

Abstract

A method for mullet artificial breeding in batches belongs to the field of fishery. The invention relates to a technical field of aquaculture, in particular to the method for mullet artificial breeding in multiple batches, and is characterized by comprising a whole process of the six stages of parent postpartum recovery, parent breeding, parent antenatal breeding in batches, parent fish selectionand hasten parturition, oosperm incubation and larval breeding; female fish occupying proportion is increased, the grouping is carried out at a low temperature period, and temperature and light control breeding in a back room is combined; according to the method, the use time of artificial breeding equipment is prolonged, the technical problem is solved that mullet artificial breeding for a long time in multiple batches is difficult, the egg grain cardinal number of breeding groups with same quantity is doubled or more, three batch breeding in a breeding season is achieved, the breeding time is prolonged by three times or more, and the fish fry breeding quantity is increased by three times or more. The fish yield-increasing effect in a breeding period is significant, and the method is applicable to industrialization large-scale development.

Description

technical field [0001] The invention belongs to the field of fishery, and relates to an aquaculture technology method, in particular to a multi-batch artificial breeding method for mullet. Background technique [0002] The mullet (Myxocyprinus asiaticus) belongs to the order Cyprinidae, the family Subostomatidae, and the genus Myxocyprinus. Commonly known as: fire bream, yellow row, wooden leaf plate, red fish, purple bream, swallowfish, blood row, powder row. Distributed in the middle and upper reaches of the Yangtze River, such as the Yangtze River and Jinsha River, it feeds and swims into Dongting Lake for fattening, and lives in lakes and rivers. It is a rare and rare fish unique to my country, and has high economic and research value. Juvenile fish and adult fish have different shapes. The body of juvenile fish is tall and flat on the sides, showing a trapezoidal shape. There is a carmine red wide longitudinal stripe on the side axis of the adult fish. The color of the...

AI Technical Summary

Problems solved by technology

[0005] At present, the natural resources of mullet can no longer meet the needs of the market. Carrying out artificial breeding of mullet, carrying out release proliferation and artificial breeding are effective ways to solve the problem

Due to the degradation of mullet germplasm resources, there are few domestic studies on mullet breeding, lack of in-depth research on broodstock breeding and maturation promotion technology, and a complete technical system and plan have not yet been formed. The main reason is to reduce the stocking density on the basis of adult fish breeding , strengthen prenatal cultivation, and take measures such as prenatal water flow stimulation. In the production process, there are often situations such as low broodstock maturity rate, low induced production rate, and unstable seed production. The size of the release makes a big difference