河南省枝角类资源丰富,南方种与北方种在我省里混交状分布,均为华北区的一般种类。在已载的59种中有些是人工育虫的理想种源,如微型裸腹(氵蚤),可解决鱼、鳖苗种期对活饵料的需求,是获取廉价优质动物性蛋白质的一有效方法。 Cladocera species in Henan Province is rich in resources. The southern species and the northern species are mixed with each other in our province. They are all common species in North China. Among the 59 species already contained, they are the ideal provenances for artificial insemination. For example, the mini-nudibranch (Daphnia magna) can solve the demand for live feed for fish and turtle seedlings, and is an effective method for obtaining cheap high quality animal protein method.