Artificial propagation method of culter erythroculter

By using the rational injection of LRH-A2 and HCG combined oxytocin and optimizing the cultivation conditions in the artificial breeding of Culter alburnus in Xingkai Lake, the problems of low hatching rate and high mortality rate of broodstock have been solved, achieving efficient artificial breeding and low-cost broodstock cultivation, and promoting the development of Culter alburnus aquaculture in Xingkai Lake.

CN122350004APending Publication Date: 2026-07-10哈尔滨市农业技术推广总站
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Patent Information

Application Number
CN202610443076.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-07
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing artificial breeding methods for Culter alburnus in Lake Xingkai have low hatching rates and high mortality rates among parent fish, severely limiting the development of its aquaculture industry.

Method used

Oxytocin, a combination of LRH-A2 and HCG, was used to inject broodstock of Culter alburnus from Xingkai Lake. The injection dosage and time interval were strictly controlled, and reasonable artificial spawning induction procedures and subsequent care measures, including water quality control, feed administration and drug use, were combined to optimize the breeding and hatching conditions of the broodstock.

Benefits of technology

It improved the hatching rate and survival rate of broodstock of Culter alburnus in Xingkai Lake, reduced the mortality rate of broodstock, reduced the cost of repeated breeding, and promoted the development of the Culter alburnus aquaculture industry in Xingkai Lake.

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Abstract

The invention relates to the technical field of aquaculture, in particular to an artificial propagation method for culter erythroculter at the Hataihu Lake. According to the method, the female parent fish and the male parent fish are reasonably injected through the oxytocin formed by combining the LRH-A2 and the HCG, especially the female parent fish is injected twice, the injection dosage of each injection is strictly controlled, the time interval is reasonably controlled through combination of the injection dosage and the injection dosage, efficient spawning induction can be achieved, the spawning induction efficiency of the female parent fish can reach up to 95%, and the spawning induction efficiency of the female parent fish can reach up to 95%. Good eggs and seminal fluid can be obtained, so that the eggs are better fertilized, the quality of the fertilized eggs is improved, the hatchability is improved, the stress of the parent fish is reduced, and the death of the parent fish is reduced. According to the method, the physique of the parent fish is improved through reasonable parent fish rearing, reasonable artificial spawning induction operation, postpartum nursing and other measures are combined, postpartum death of the parent fish is reduced from multiple aspects, the postpartum survival rate of the parent fish is remarkably increased, and therefore the repeated rearing cost of the parent fish can be reduced.
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