A method for artificially inducing labor of albacore
A technology for artificial induction of labor and long-finned snout, which can be used in fish farming, application, climate change adaptation, etc., and can solve the problems of large dosage, many types of induction drugs and injection needles, and unclear induction water quality indicators.
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[0018] (1) Broodstock selection: On April 18, 2014, 15 mature albacores with good physique and no disease or injury were selected from the closed recirculating aquaculture system of the Yangtze River Fisheries Research Institute's breeding workshop as broodstock for oxytocin. Among them, there are 9 male fish and 6 female fish.
[0019] The identification of male and female broodstock is as follows: mature female fish has enlarged abdomen, obvious ovary outline, and red genital pores; mature male fish have small pearl stars on their pectoral fins, which feel rough to the touch, and semen flows out when lightly pressed on the abdomen. B-ultrasound and hand-squeezing methods are used to identify the maturity of brood fish. The characteristics of good maturity of female fish are: the abdomen of brood fish is checked with B-ultrasound instrument, and the image of the ovary shows that the granules are obvious and arranged neatly, and there is no fat tissue between the granules; the ...
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