大口鲶作为一种新特水产品种,在全国各地有较为广泛的养殖,以池塘、网箱、水泥池进行单养或混养。在水泥池饲养时应着重注意以下几个问题。 一、合理密养 密度过大、饵料投喂不足,鱼苗就易自相残杀或易得病,成活率也就降低,一般鱼苗培养阶段(3厘米以下)每平方米放养150～200尾,鱼种培养阶段(3～10厘米)每平方米放养80～100尾,成鱼养殖(10厘米以上)应根据饵料和管理水平而定,每平方米宜放5～10尾。 二、充足的适口饵料和适时驯化 Catfish as a new special aquatic species, throughout the country have a more extensive farming, ponds, cages, concrete ponds for single or polyculture. In the cement pond should pay attention to the following questions. First, a reasonable density density is too large, inadequate feed rationing, fry easy to kill each other or easily get sick, the survival rate will be reduced, the general fry training stage (3 cm below) stocking 150 ~ 200 per square meter fish species Cultivation stage (3 ~ 10 cm) stocking 80 ~ 100 per square meter, adult fish farming (10 cm or more) should be based on food and management level, should be put 5 to 10 per square meter tail. Second, adequate palatable food and timely domestication