小瓜虫病,亦称“白点病”,主要危害人工饲养的淡水鱼,无论鱼种还是成鱼,过度密养极易发生,并常常引起大批死亡。小瓜虫病病原体为多子小瓜虫(Ｉｏｈｔｈｙｏｐｈｔｈｉｒｉｕｓ-ｍｕｌｔｉｆｉｌｉｓ)。发育过程分童虫期和成虫期。生活周期分营养期和胞囊期。营养期自幼虫钻进 Baby bug, also known as “white point disease,” is a major hazard to captive freshwater fish, whether fish or adult fish, overconformity can easily occur and often cause large numbers of deaths. The small asiatica pathogen is multi-small Ichthyophthirius-multifilis. Developmental stages of the worm stage and adult stage. Life cycle sub-nutrition and cystic stages. Nutritional period from larvae drilling