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我国河蟹苗种资源丰富,由于近年来无节制地滥捕,加上全国的养蟹热,致使苗种供不应求,价格飞涨,一些不法商人为牟取暴利,出售假蟹种、杂蟹种。致使养殖者蒙受经济损失,笔者根据经验和资料将其真假蟹种识别方法作一简介,仅供参考。 1、我国有蟹类近600种,目前广泛用作养殖的为中华绒螯蟹,其一秋龄未成熟幼蟹称作为蟹种。与中华绒螯蟹具有同一属性的有日本绒螯蟹、直额绒螯
Because of the abundance of crab species in our country, due to the indiscriminate over-arrest in recent years and the crab-raising fever in the country, the demand for seedlings is in short supply and the prices soar. Some unscrupulous traders are making huge profits to sell fake crab species and hybrid crabs. Resulting in economic losses farmers, the author based on experience and information will be true and false crab species identification method for an introduction, for reference purposes only. 1, there are nearly 600 species of crabs in our country, is currently widely used for breeding Chinese mitten crab, an immature juvenile crab called as a species of crab. Eriocheir sinensis has the same properties of a Japanese mitten crab, straight velvet chelate