The mandarin fish artificial production method completed by the scientific research personnel of Heilongjiang Fisheries Research Institute of Chinese Academy of Fishery Sciences was authorized by the national invention patent. The invention relates to an artificial oxytocin production method for the squama fish, and solves the problems that the current squama fishes do not have the time for spawning, the long spawning cycle and the low hatching rate.
In the invention, the broodstock is placed in the urine production pond each spring; when the water temperature reaches 7° C.-12° C., the broiler oxytocin is produced; the male and female brood fish are injected with the oxytocin at the base of the pectoral fin base after anesthesia, and the second injection is used, and the broodstock is then After mixing together, the male fish row and the female ovulate 7 days later, which means that the artificial larvae of the small scale fish are completed.
The invention makes the fish spawning time concentrated, the spawning cycle is shortened by 10 days to 15 days, the hatching rate is as high as 60%-70%; artificial oxytocrolling bred fish, the male fish has a baiting success rate of 100%, and the female's urgency of production success. To achieve 40%-50%; artificial oxytocin wild broodstock, the success rate of male fish reached 100%, the success rate of females reached 50% -80%.
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