Culture technique of Loach in net Cage

Cage culture loach has the advantages of simple equipment, high yield, convenient management, easy fishing and remarkable economic benefits. It is a practical culture technology worthy of popularization. The technology of cage culture loach is introduced as follows:

site selection

The breeding site should be a lake with wind and sunlight, shallow water beside a reservoir or in a living water pond, with good water quality and no industrial pollution.

Cage setup

The specifications of the cage can be large or small, the small area is 1-2m2, the large one is 20--40m2, and generally 10--20m2 is appropriate. The box body is made of polyethylene woven mesh with mesh of 0.5cm-1.0cm. The height of the net depends on the culture water, but the upper part of the net cage must be higher than the water surface by more than 40cm to prevent the loach from escaping. The bottom of the net cage should be muddy. The bottom layer should be covered with manure and soil 20cm thick, and the top layer should be soil.

loach breeding

The stocking quantity of loach species in cage should be determined according to the water condition, water, fertilizer and water activity can be put more, otherwise less, generally 900- 1200 loach species of 5 - 6cm are stocked per m2.

feeding management

Artificial feeding is the main method in cage culture of loach. A 2m2 feeding platform should be set up in the cage. The feeding platform is 20- 25cm away from the bottom of the cage. The bait should be thrown on the feeding platform when feeding. Artificial feeding can be feeding bran, silkworm chrysalis, earthworm made of lump feed or artificial hard pellet feed. Animal protein in artificial compound feed should account for more than 50%. The daily feeding amount is 3%--5% of loach weight, and it is fed three times in the morning, middle and evening.

daily management

At ordinary times, we should wash the net clothes frequently, keep the permeability of the water inside and outside the cage, and make enough bait organisms enter the box. At the same time, we should check the net clothes frequently, and make up for any loopholes immediately. In addition, it is necessary to prevent pesticides, fertilizers and other pollution and invasion of harmful organisms.

disease Control

Usually to do a good job of fish disease prevention and control work, bait to adhere to the "four fixed" principle, timely removal of food table bait, regularly sprinkle with quicklime or with bleaching powder hanging bags. Bleaching powder hanging bag method: wrap modi white powder with two layers of gauze around the food table, hang 2--3 bags at a time, which can effectively prevent disease occurrence.

Escape prevention

Now more and more people are using net cage to raise loach, which has become a major feature of loach breeding. However, cage breeding loach to prevent escape is the most important thing farmers should pay attention to.

1, loach escape will lead to heavy economic losses, this is no remedy.

2, loach escape will lead to loach disease. Because in the loach escape process, harmful organisms enter the net cage or loach collision, resulting in loach bacterial infection.

3, in order to prevent loach escape, should check the cage in time, there are loopholes immediately fill. At the same time, to prevent loach escape and harmful organisms into the net cage, the net cage should be equipped with anti-escape facilities such as box cover.