1, culture environment: the culture of perch should not only have suitable dissolved oxygen in water, but also have a perfect drainage and irrigation system and water quality that meets the requirements of culture. 2, stocking fry: fry should be disinfected in time before stocking, and chemicals can be used for disinfection. 3. Daily management: the water in the aquaculture pond should be replaced in time, and the aquaculture pond should be replenished with oxygen in time. 4. Scientific disease prevention: it is necessary to control the amount of bait and reduce the possibility of water pollution in aquaculture ponds and enteritis of perch.

First, the new technology of bass culture

1, cultural environment

In order to raise bass well, there should be proper dissolved oxygen in the water. Once the dissolved oxygen in water is insufficient, it is difficult to produce high yield. In addition to dissolved oxygen in water, the culture of perch should have a perfect irrigation and drainage system and good water quality. If the conditions are sufficient, an aerator should be equipped. Before breeding, the pool water should be disinfected in time, and lime water can be used for disinfection.

Step 2 stock fry

Before the fry are stocked, chemicals can be used to disinfect the fry, and vitamins can be added to the feed of perch to feed them. Bass should be raised in ponds when stocking, and fish ponds should be divided into large and small ponds. The frequency of feeding should be twice a day. The main raw material of feed is floating pellet feed. Enough vitamins B and C should be added to the feed, and the water in the pond should be well drained to ensure the freshness of the pond water.

3. Daily management

When feeding bass, it will leave residual bait in the pond water, which will affect the water quality, so it is necessary to replace the pond water. In the late stage of bass culture, it is necessary to patrol the pond frequently, inject fresh water frequently, properly inflate the pond water, and use the aerator reasonably. When feeding perch, you only need to feed it to eight points full, and you should control the daily feeding amount.

4, scientific disease prevention

Scientific methods should be used to prevent diseases of perch. Perch farming is prone to enteritis and hepatobiliary syndrome. It is necessary to ensure and control the appropriate feeding amount to reduce water pollution and enteritis. When the perch has enteritis, appropriate broad-spectrum antibacterial drugs can be added to the bait. Chinese herbal medicines can be added to the bait to prevent hepatobiliary syndrome of perch.

Second, the species of perch

Perch contains many kinds of fish, among which the most common species are sea bass, Songjiang perch, largemouth bass and sea bass, among which sea bass is mainly distributed at the junction of seawater and fresh water in coastal waters and estuaries, Songjiang perch is one of the migratory fish, and largemouth bass is also called California perch, and its origin is in northern Xinjiang.