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北方地区的精养池塘大多以放养鲤鱼为主,并搭配少量白鲢或花鲢,放养的品种较单一,在春季越冬鲤鱼易患鲤嗜子宫线虫病。笔者通过生产实践和试验观察,找出了一条预防鲤嗜子宫线虫病的新途径,供参考。1 发病病源 据有关资料报导:在冬季,鲤嗜子宫线虫寄生在鲤成鱼鳞片下,随着春季水温的提高,虫体生长加速而使鱼致病,而部分散落在水中的幼虫被萨氏中鳔水蚤、大型剑水蚤吞食,并在水蚤体腔中发育,鲤鱼因吞食水蚤而使幼虫进入鲤鱼体腔内,
Most of the intensive ponds in the northern part of the stocking carp-based, and with a small amount of silver carp or silver carp, stocking more single species, overwintering carp in spring susceptibility Cyprinus nematophila. The author through the production practice and experimental observation, to find out a new way to prevent carp esophageal nematode disease for reference. 1 pathogenesis According to the data reported: in winter, Cyprinid the carp parasitized in the carp into fish scales, with the increase of spring water temperature, the growth of parasites to make fish sick, and some larvae scattered in water were Saatchi Minamata Daphnia, a large sword Daphnia swallowed and developed in the body of the Daphnia, carp swallowed the water flea and larvae into the carp body cavity,