A method of parental selection for improving reproductive efficiency of Nile tilapia
A Nile tilapia, reproduction efficiency technology, applied in fish farming, application, climate change adaptation, etc., can solve the problems of reducing production efficiency and benefits, cumbersome breeding process and operation, increasing labor load, etc.
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[0037] The selection of the female parent before the first breeding: starting from the fry, the fry comes from the national "Tilapia Genetics and Breeding Center" of the Freshwater Fishery Research Center of the Chinese Academy of Fishery Sciences, and chooses the Yixing Qiting Experimental Base of the Freshwater Fishery Research Center of the Chinese Academy of Fishery Sciences to breed by itself The 3,000 Nile tilapia seedlings were cultivated according to conventional methods. When the fry grow to about 10g, carry out electronic marking, and then after 4 months, the fry will reach the adult stage. Starting from the implantation of the electronic tag, the parents were morphologically measured every 20 days, including morphological data such as , , and so on (see Table 1). The analysis found that the coefficient of variation of the abdominal body width of the female fish varied greatly during the six measurements. 12%, 13%, 15%, 20%, 45%, 50% in turn. The variation coefficie...
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