CATDOLL : CATDOLL: If you want to make more money from fish farming, what are the technologies to increase the production and efficiency of silver carp?

If you want to make more money from fish farming, what are the technologies to increase the production and efficiency of silver carp?

1. Food Supply

Both silver carp and bighead carp are filter-feeding fish that mainly feed on plankton, organic debris and bioflocs. They can also be fed artificial feeds. The difference is that silver carp mainly feeds on zooplankton, while bighead carp mainly feeds on phytoplankton.

We can improve the food supply of silver carp from the following four aspects.

1. Directly supplement food: feeding feed, such as using fermented feed and silver carp special feed to directly increase food supply.

2. Fertilize water: Add organic fertilizer, inorganic fertilizer, biological fertilizer, etc. to promote the growth of plankton. You can use Hechenhua silver carp special biological fertilizer: water nanny + silicon calcium quick supplement to promote the growth of biological bait and balance the algae phase.

3. Supplement beneficial bacteria: Use beneficial bacteria to decompose organic matter in the pond and form bioflocs. You can use Hechen Water Enzyme, concentrated photosynthetic element, and biological water purifier.

4. Bottom improvement: Oxidize and decompose the pond bottom and reuse the nutrients on the bottom of the pond, such as using quicklime, potassium persulfate, etc. to oxidize the bottom. You can also use Hechen Biological Bottom Cleaner for biological bottom improvement.

When stocking the fish, it is also necessary to consider the food competition between silver carp and other organisms in the pond: for example, crucian carp also mainly feed on zooplankton, algae, organic debris, etc. If there are too many crucian carp, the amount of silver carp stocked can be appropriately reduced; snails will also compete with silver carp for food, so if there are too many snails, a small amount of black carp can be added to inhibit the growth of snails.

2. Grading feeding

Graded breeding can rationally utilize the pond's breeding space and food, so it is recommended to match fish species of different sizes: mainly silver carp, which can be raised in three sizes of 0.2 to 0.3 jin, 0.5 to 0.8 jin, and 1 to 1.5 jin; the size of bighead carp is 0.2 to 0.5 jin.

The advantages of this method are: 1) It reduces the competition for food between big silver carp and bighead carp; 2) After the big silver carp are released, only small-sized silver carp need to be replenished, which is conducive to rotation of catching and releasing, and effectively reduces the cost of stocking.

3. Reasonable close breeding

Reasonable density breeding takes into account the limited carrying capacity of the pond. Too high density may lead to slow growth of fish, more diseases, and failure to reach the market specifications as scheduled; too low density will increase the cost of fish per kilogram and reduce the breeding efficiency.

Since the economic value of silver carp is much higher than that of bighead carp, in the efficient breeding model of silver carp, the main goal should be to increase the yield of silver carp, so it is recommended to increase the proportion of silver carp. As shown in Figure 3, for the same 200 silver carp, the higher the proportion of silver carp, the higher the benefit per mu.

It is best to choose free-range breeding, control the water quality, and catch the fish in time, and try not to release too many.

You must clean the fish pond regularly, and you also need to know how to use high-quality fertilizers to avoid disease.

I personally think that we can think systematically from the following five aspects: ① Food supply; ② Grading feeding; ③ Reasonable density of breeding; ④ Round-robin catch and release; ⑤ Breeding management. Add organic fertilizer, inorganic fertilizer, biological fertilizer, etc. to promote the growth of plankton. You can use the special biological fertilizer for silver carp: water nanny + silicon calcium fast supplement, promote the growth of biological bait, and balance the algae phase. Grading feeding can make reasonable use of the breeding space and food in the pond, so it is recommended to match fish of different sizes.

The feed for silver carp is special powder, or it can be fed with grass carp feed and water. Which one is better?

Of course, special powder is used, which is better for the growth of silver carp.