With the increase of catfish caliber, cooked and chopped animal viscera (chicken intestines, pig lungs, etc.), small miscellaneous fish, shrimp, loach fish and so on can be fed. The feeding amount accounts for 8% ~15% of the fish weight. Feed 2 ~ 3 times a day. Because catfish are fierce, once they are hungry, they will kill each other. Therefore, it is necessary to ensure an adequate supply of bait.
Generally, feeding 4 kg of animal bait can make fish gain weight 1 kg. If the juice is used to produce 60 kg of catfish per 666.7 square meters of rice field, 240 kg of bait should be prepared. With the improvement of high-density and large-scale catfish breeding technology, some areas began to experiment with feeding full-price pellet feed to raise catfish, and the popularization of this technology solved the problem of feed source for catfish breeding.
Extended data:
Water management Because most catfish need to be fed with animal feed, it is easy to cause water quality to deteriorate. Although the local catfish is resistant to hypoxia and can still survive in sewage, its growth rate slows down significantly and stops when it is serious. Therefore, the water quality should be kept fresh as far as possible, and the water should be changed1~ 2 times a week, and the1/4 ~1/2 of the pool water should be changed each time. If the long-term micro-flow water can be maintained, the effect will be better.
Prevention and treatment of fish diseases During the feeding period, quicklime or bleaching powder is sprayed and disinfected once every half month in the whole pool to prevent fish diseases. For the treatment of water mold, malachite green (10g per cubic meter of water) can be soaked for 3 minutes. Because catfish is a scaleless fish, it is more sensitive to various drugs than scaly fish, and it is an insecticide containing trichlorfon, so it should be used with caution in production practice.
References:
Baidu encyclopedia-catfish