Technology of fish culture in cage in reservoir

In recent years, cage fish culture has become more and more popular in our country. Cage fish culture can reduce the waste of land resources and do not compete with farmers for land and water. And it can also increase the nutritional absorption of fish by inhibiting the movement of fish and increasing the amount of bait. And cage fish culture will not be restricted by the water area, now the most common is the reservoir cage fish culture. So the editor brings you the technology of fish culture in reservoir cages today. Let's have a look!

1. Reservoir requirements

When carrying on the reservoir cage fish culture, first of all, we need to select the reservoir. The reservoir should ensure sufficient light and good shelter, which can provide sufficient light for the growth of fish and enhance its growth ability. And there should be good traffic around to facilitate the transportation and listing of fish after fishing. The nutrition degree of the reservoir water body will also have a certain impact on the efficiency of culture, so it is also necessary to ensure that the nutrition is rich. At the same time, we should pay attention to the water area and depth, the water level change should not be too large, so as to avoid the cage can not bear. And it is not convenient for the placement and removal of the cage.

2. Cage placement area

After selecting the reservoir, we will also set aside an area in the reservoir as the placement area of the cage. The cage should be placed in a place where the water surface is broad, the current is slow, the light is uniform, the change of water level is small and the water depth is suitable. If the water level is too shallow, then the exchange of water bodies will be affected, and it is not conducive to the growth of fish. But it should not be too deep, if it is too deep, then the thermocline is easy to appear in the water body, thus destroying the water body and leading to the phenomenon of floating head. Therefore, the depth of the water level should be controlled at about 7.5 meters. Finally, the cage should not be too close to the shore to prevent it from being bitten by mice and other creatures, causing the fish to flee.

3. Cage design

When we are ready, we will have to design the cage. The shape of the cage can be designed into square, circle and other collisions according to your own habits. Then according to the number of aquaculture to control the area of the cage, the cage area can also be set according to their own habits. When placing the cage, the placement depth should be determined according to the culture water body. However, it should be noted that the cage must not touch the sludge at the bottom of the reservoir, nor can it be removed during the dry season. Finally, to control the size of the mesh, the mesh to ensure that the fish can not escape. Under normal circumstances, the mesh is about twice the length of the fish, and the perimeter is smaller than the fish.

4. Technical points

When setting up the cage, we should try our best to make sure that there is a wealth of natural bait around it. Then it is necessary to choose the suitable cage structure and installation mode, and pay attention to the arrangement and the distance between each cage when placing the cage. Then the farmed fish should be selected according to the water body, and the stocking specification, culture density and mixed culture ratio should be controlled. To ensure that the production performance of the water body can be brought into full play. Finally, it is necessary to do a good job in fish baiting, escape prevention, disease prevention and other management work. Clean the cage regularly and check the mesh to ensure the normal growth of the fish.

The above is a brief introduction to the technology of cage fish culture in the reservoir. That's all for today's introduction. This article is for reference only. I hope it can help you all.