Catfish culture environment

The culture environment with suitable water temperature and clear water quality will make catfish grow faster and produce more. Catfish generally live in the middle and lower layers of lakes or ponds, can adapt to a variety of environments, even if the water quality is not good, they are saprophytic fish, eat more but exercise less, so the growth rate is very fast, generally the more to the south, the shorter the growth cycle of catfish.

Catfish mostly grow in the middle and lower layers of lakes and ponds, and they are very adaptable to the environment, even in bad waters. They belong to saprophytic fish. They usually eat a large amount of food but do little exercise, and grow very fast. Generally, the more to the south, the shorter the growth cycle of catfish.

At present, the price of wild catfish on the market is relatively high, even reaching one or two hundred yuan per jin, resulting in more and more people starting to breed catfish. Although the survival ability of catfish is very strong, and the requirements for the environment are not high, if there is too much dirt in the water, it will greatly increase the content of ammonia nitrogen, make the water environment become very poor, and affect the growth and development of catfish. If catfish are cultured in water with suitable water temperature and clear water quality, their growth rate will be faster and their yield can be better increased.

The technique of culturing catfish

1. Two-stage seedling release

Because of the inconsistent specifications and poor resistance of the fish fry just introduced and transported back, if they are directly put into the pond, they will be too active and consume too much energy to eat up the feed in the pond, and the feed residue will also pollute the water.

If we adopt the two-stage release method of centralizing fish fry in a small pond and then putting them into a big pond, it will not only facilitate daily management, but also make fish fry adapt to the new environment very well. it can also ensure that when they grow in the small pond, they can get enough feed and promote their growth rate.

When the size of the fry in the small pond reaches about 10-15cm, the larger fish in them can only be fished out and put into the big pond for breeding, while the small species continue to be cultured in the small pond, this way can make the growth rate of the fish basically consistent, but also can avoid the phenomenon of big fish eating small fish, facilitate unified management, and improve the survival rate of the fish school.

2. Feed rationally

Catfish are omnivorous fish, they are gluttonous, in the feed to strictly control the number of fish, it is best to keep as many fish in the pond as feed, must not be blindly fed. Feed is to be divided into several feeding points, spread the bait evenly, pay attention to a small amount of feeding many times, so as to avoid uneven hunger and satiety in the fish.

At the beginning, fish fry were mainly fed with animal fodder. with the continuous growth of fish fry, you can slowly add plant feed and combine animal and plant feed to ensure balanced nutrition. generally, the daily feed should be about 5-8% of the total weight of the fish, and the feed should be adjusted every 7 or 15 days according to the growth status of the fish.

3. to carry out rotation and separate cultivation.

Catfish are ferocious and gluttonous. When feeding, big fish often grab food, while small fish have no feed to eat, which makes obvious differences in the size of schools of fish. In the process of culture, in order to facilitate unified management and make the specifications of fish consistent, it is best to implement the way of rotation and separate culture, raising only fish with different specifications separately to increase the production of fish.

4. Catfish overwintering

Catfish are generally caught in autumn, in addition to meeting the specifications of the fish listed on the market, you can also leave some adult catfish to overwintering in the deepwater ponds covered by the Ninong greenhouse, and wait until the spring of the next year to sell early spring fish. this can not only solve the problem that it is difficult to sell catfish in the peak season, but also prolong the supply time of fresh fish, and the price of fish in early spring is very considerable, which can improve economic benefits.