CATDOLL : CATDOLL: How many silver carp should be stocked per acre of water surface?

It is recommended to stock 15 to 20 catties of silver carp per acre of lobster pond, and it is best if the silver carp fry weighs about 1 catty. There is of course a reason for doing this.

Why are crayfish and silver carp raised together?

In the ponds (shrimp fields) where crayfish are raised, various excrement will be produced during the breeding process. At the same time, the uneaten bait residues and other algae particles after aging and death will gather at the bottom of the water, forming a large amount of organic matter. In hot weather and anoxic environment, a large amount of ammonia nitrogen and nitrite as well as a large amount of organic phosphorus and hydrogen sulfide will be generated. These harmful substances pollute the water quality and easily cause crayfish to get sick. More importantly, cyanobacteria have a natural breeding advantage in this environment, and cyanobacteria particles are large, which crayfish do not like to eat. Even if they eat them, they cannot digest them, which can easily cause enteritis and other diseases. Silver carp and grass carp, as a filter-feeding fish, like to eat cyanobacteria particles the most, and most of them grow in the middle and upper layers of shrimp fields (ponds). Crayfish mainly live at the bottom of the water body, and there is no conflict between the two in terms of growth space. Therefore, raising an appropriate amount of silver carp will not have much impact on crayfish, and it can effectively inhibit the excessive reproduction of cyanobacteria and has the ability to purify water quality.

In the specific process of mixed breeding, what else do we need to pay attention to?

☞, it is recommended that the silver carp seedlings to be released should be around 1 jin per liter. They should not be too small, because if the silver carp is too small, it will be easily eaten by crayfish. If it is too large, the breeding cost will be higher, so the size should be moderate when released.

☞, although silver carp and crayfish basically do not conflict in terms of activity space, they will compete for oxygen during mixed culture. Therefore, it is recommended to plant an appropriate amount of aquatic plants in the pond (shrimp field). First, it can purify the water quality, second, it can produce a certain amount of dissolved oxygen, and finally, it can provide a hidden place for fish and shrimp to live and move.

Summarize:

If economic benefits are not taken into consideration, the purpose of releasing silver carp into shrimp fields (ponds) is generally to clear blue algae. Therefore, farmers generally release an appropriate amount of silver carp into the water to inhibit the growth and reproduction of blue algae.

How many fish to release depends on the size of your pond. It is best to release 150,000 silver carp on one acre of water surface so that the water surface will not be crowded and the purpose of maximizing the reproduction of fish can be achieved.

It is best to release 150,000 silver carp per acre of water surface. This way the water surface will not be crowded and the water space will be utilized to the maximum extent, thus achieving the goal of maximizing aquaculture.

About 150,000. This depends mainly on your economic level, the water quality and depth of the pond.