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采用HCG、S-Gn RH-A和DOM混合注射催产技术以及人工授精技术,催产细鳞鱼亲鱼400尾(雌雄比为3∶2),获得总卵数58.4万粒,催产率达到86.25%,受精率达到97.32%。通过购置、建设平列槽、温室、专用培育池等设施渔业进行苗种培育,孵化率达到91.13%,苗种养殖成活率达到89.37%,培育出细鳞鱼苗种39.2万尾。结果认为:采用当年孵化的苗种在网围中养殖、越冬后再放流模式可有效提高放流苗种存活率,转化增殖效果明显,是大型水域捕食性鱼类增殖和低值野杂鱼转化增值的有效途径。
The mixed fertilization with HCG, S-Gn RH-A and DOM, and the artificial insemination technique were used to induce 400 broodstock (3: 2 ratio of male to female) to obtain a total of 584,000 eggs and the rate of 86.25% Fertilization rate reached 97.32%. Through the acquisition and construction of facilities such as Pingliang Slot, Greenhouse, and special breeding ponds, seed breeding was carried out. The hatching rate reached 91.13%, the seedling breeding survival rate reached 89.37%, and 392,000 fish scales were cultivated. The results showed that: Breeding hatchlings in the net in the fence, overwintering and then release mode can effectively improve the survival rate of seedlings, the proliferation effect is obvious, is a large waters of predatory fish proliferation and transformation of low value wild trash Effective way.