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购优质苗到青虾原良种场购苗,切忌为省成本而多年自繁自育,避免经多次近亲繁殖,青虾的有害基因不断纯合,使苗种品质越来越差,性成熟越来越早,商品虾规格越来越小。对青虾苗进行中子辐照用低剂量的中子辐射辐照0.8-1厘米的虾苗,通过激活幼体内聚合酶的活性,使青虾的性腺发育滞缓。
Buy high-quality seedlings to the original seedlings of freshwater shrimp farm buy seedlings, avoid the cost of self-breeding for many years, to avoid repeated inbreeding, shrimp harmful genes continue to be homozygous, so that the quality of the seed is getting worse, sexual maturity More and more early, smaller and smaller commodity shrimp specifications. Neutron irradiation of young shrimp fry irradiated with low dose neutron radiation of 0.8-1 cm shrimp, gonadal development of young shrimp stagnated by activating the activity of lactic polyps.