Parent fish breeding and artificial maturity promoting and spawning induction method for platax teira

Abstract

The invention provides a parent fish breeding and artificial maturity promoting and spawning induction method for platax teira. The method comprises the steps of 1, parent fish breeding and sifting, wherein fry of platax teira are put in a breeding net cage for breeding, and reserved parent fishes are sifted and continue to be bred to obtain parent fishes to be subjected to spawning induction reinforcement; 2, reinforcement of parent fish maturity promoting breeding, wherein the parent fishes to be subjected to spawning induction reinforcement are subjected to reinforced breeding; 3, spawninginduction of the parent fishes, wherein the a spawning induction agent is injected into the parent fishes which are subjected to reinforced maturity promoting breeding for artificial spawning induction; 4, collection and treatment of fertilized eggs, wherein the fertilized eggs in a spawning bag are collected, and the collected fertilized eggs are sifted to complete parent fish breeding and artificial maturity promoting and spawning induction for platax teira. According to the method, net cage breeding is adopted for parent fish breeding of platax teira, breeding individuals are periodically sifted, and the high-quality reserved parent fishes are obtained; meanwhile, breeding management and nutrient enrichment are reinforced, development and maturation of gonads of the parent fishes are promoted, the spawning induction agent and dosage for the parent fishes are optimally determined, and artificial maturity promoting and spawning induction for platax teira is achieved.

Description

technical field [0001] The invention belongs to the technical field of seawater fish culture, and in particular relates to a method for cultivating and artificially promoting maturation and spawning of the broodstock of the sharp-finned swallowfish. Background technique [0002] Platax teira, also known as the long bat, belongs to the order Perciformes, the suborder Acuniciformes, and the family Pomfretaceae. Distributed in the Arabian Sea in the Indo-Pacific region, from Indonesia to the Sea of ​​Japan, they often gather in open waters and have a strange shape, especially the juvenile fish. They can be used as ornamental fish, and the adult fish can be eaten. The meat is delicious and has high economic value. For a long time, due to the impact of overfishing and the deterioration of the ecological environment in sea areas, wild swallowfish has become increasingly scarce, and the market supply is limited, making it difficult to meet market demand. Therefore, it is urgent to...

AI Technical Summary

Problems solved by technology

At present, the broodstock breeding and maturation-promoting and oxytocin techniques for the sharp-finned swallowfish are not yet mature