Artificial breeding method for black carassius auratus

Abstract

The invention discloses an artificial breeding method for black carassius auratus. The method comprises the following steps of S1, black carassius auratus parent fish breeding, wherein healthy black carassius auratus is selected for intensive breeding; s2, black carassius auratus parent fish selection and maturity promotion: the black carassius auratus parent fish is put into the breeding pond for temporary rearing, and medicine injection is performed on female black carassius auratus parent fish for maturity promotion; s3, spawning induction and fertilization: performing second-time medicine injection artificial spawning induction 12 hours after the first-time medicine injection artificial maturation acceleration, and performing artificial insemination 24 hours after the second-time medicine injection; s4, hatching and breeding, wherein the fertilized eggs in the third step are put into a bottle type incubator to be hatched in running water after being debonded. The method has the advantages that the wild black crucian carps are artificially domesticated, after gonads of the wild black crucian carps are mature, spawning induction hormone is adopted for artificial spawning induction, gonad development of female and male parent black crucian carps is kept synchronous, mature sperms and ova are obtained, proper conditions are provided, normal insemination and incubation are completed, proper environment and bait are provided for the parent black crucian carps according to the development degree of embryos and juvenile carps, and the survival rate of the parent black crucian carps is increased. Therefore, high-quality and healthy black crucian fry are obtained.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an artificial breeding method for black crucian carp. Background technique [0002] Black crucian carp (Carassius carassius) is a fish of the family Cyprinidae and the genus Crucian carp. Black crucian carp is naturally distributed in Central and Eastern Europe, and is only distributed in the Irtysh River Basin in my country. Black crucian carp is very resistant to low oxygen and extreme cold. It can be used as an excellent original species for hybrid breeding research and to cultivate new cold-resistant strains. At the same time, black crucian carp grows fast, is an economic fish, and has a golden body color, which has strong ornamental value and can be developed and utilized. In recent years, due to overfishing, environmental pollution, habitat destruction and other reasons, the resources of black crucian carp have declined sharply. At present, it is difficult to catch b...

AI Technical Summary

Problems solved by technology

[0003] Therefore, artificial breeding is an effective measure to restore the resources of black crucian carp, but the literature on its breeding and reproduction has not yet been reported.

The artificial breeding method of crucian carp currently adopted is not suitable for the artificial breeding of black crucian carp in terms of the hatching temperature of fertilized eggs, the dosage of oxytocic agent, and the temperature of seed cultivation, etc., resulting in low induction rate, low emergence rate, and low survival rate. Form large-scale production of black crucian carp seedlings