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近年来随着河蟹育苗业的发展,育苗过程中亲蟹的培育成为不可忽视的问题,亲蟹的抱卵率、抱卵量以及胚胎的质量直接影响着育苗的成败。笔者通过几年来的实践,总结出一套提高亲蟹成活率和胚胎质量的技术措施,现总结如下:1 亲蟹的选购与强化培育 亲蟹最好在10月初,水温低于18℃时选购。选购亲蟹最好从大水面健康养殖区选择,避开养蟹多发病的区
In recent years, along with the development of crab breeding industry, the cultivation of crab in breeding process has become a problem that can not be neglected. The crab’s holding rate, the amount of eggs held and the quality of embryo directly affect the success of nursery. Through several years of practice, the author summed up a set of techniques to improve the survival rate of crabs and embryos, the technical measures are summarized as follows: 1 crab purchase and strengthen the cultivation of crabs best in early October, when the water temperature is below 18 ℃ Buy. The best choice of crabs from the selection of aquatic healthy breeding areas, avoid crabs more incidence of the area