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一、前言蟾胡子鲶(Clarias batrachus),又称二栖胡鲇,是1978年从泰国引进的食用淡水鱼。它与我国南方所产的胡子鲶(Clariasfuscus)在分类上同属于鲤形目、胡子鲶科(Clariidae),它们的形态、习性很相似。蟾胡子鲶的体形比较大,肉质好,能生活于低溶氧的环境,适宜于小水体密养,并具有生长快、繁殖周期短、繁殖季节长等特点。泰国每年可饲养两批,平均折合亩产27,867市斤。根据我们初步饲养,体长4厘米以上鱼苗,饲养一周年成活率可达100%,最大个体重一市斤左右。所以,蟾胡子鲶在我国是一个很有前途的养殖新品种。
I. Introduction Clarias batrachus (Clarias batrachus), also known as amphibious calamus, was imported from Thailand in 1978 as a freshwater fish. It and Clariasfuscus produced in southern China belong to the same category as Cypriniformes, Clariidae, their morphology and habit are similar. Toad bearded catfish larger body size, good flesh, can live in a low dissolved oxygen environment, suitable for small water dense, and has fast growth, short breeding cycle, breeding season and so on. Thailand can raise two batches each year, with an average yield of 27,867 kg per mu. According to our initial rearing, more than 4 centimeters body length fry, keeping one-year survival rate of up to 100%, the largest individual weighing about one kilogram. Therefore, toad bearded catfish in our country is a promising new breed of breeding.