论文部分内容阅读
鱼锚头鳋病在全国各地鱼池中均有发现,而且终年可见。该虫主要为害当年鱼种,一尾6~9厘米长的幼鱼,有3~6个锚头鳋寄生,就能造成幼鱼死亡。亲鱼患锚头鳋病,影响性腺发育,成鱼患病,虽较少出现大批死亡现象,但鱼体瘦弱,丧失了商品、食用价值。现介绍几种鱼锚头鳋病
Anchovy is found in fish ponds all over the country and is visible throughout the year. The insects mainly damage the fish species of the year, a 6 ~ 9 cm long juvenile, 3 to 6 anchor 鳋 parasitic, can cause juvenile death. Broodstock suffering from anilitis, affecting gonadal development, adult fish sick, although less deaths occur in large numbers, but the body is emaciated, loss of goods, food value. Now introduce several kinds of fish anchovy