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第四讲养殖工艺 1.流水池放养流水池最适宜的养殖品种是草鱼,其次是团头鲂、罗非鱼、鲤鱼。这几种鱼都耐密养。草鱼为植食性,饲料易解决,在流水池中投喂水旱草或与颗粒饲料结合投喂,长势都很快;且草鱼的商品价值高,市场需求量大。罗非鱼耐低氧,生长快、产量高,但体形小,肉质差,价格低。鲤鱼在流水池中饲养必须投喂一定量的活动物饵料。我国家鱼在水温10℃以上时即开始增长,但较显著的增长期则发生在15℃以上。因此,流水池的鱼种放养时间应确定在水温15℃左右的晚春季节。放养应
Lecture 4 Breeding Process 1. Flowing pool stocking flow pool The most suitable breeding species is grass carp, followed by the bream, tilapia, carp. These kinds of fish are well-preserved. Grass carp is herbivorous, feed easy to solve, in the water pool fed dry grass or feed with pellet feed, growing fast; and grass carp high value of the goods, the market demand. Tilapia resistant to hypoxia, fast growth, high yield, but small size, poor quality, low prices. Carp feeding in the pool must be fed a certain amount of live food. My fish in the water temperature above 10 ℃ began to grow, but the more significant growth period occurs at 15 ℃ above. Therefore, the fish pond species stocking time should be determined at a water temperature of about 15 ℃ in the late spring. Stocking should be