CATDOLL : CATDOLL: Black carp farming technology, how to feed it to make it grow fast, do black carps eat small fry

1. Environmental conditions: There should be a large water source near the pond, the water quality should be clear and clean, and the pond area should be within 5 mu. 2. Pond disinfection: Clean the sludge in the pond, and then disinfect it with lime or bleaching powder. 3. Cultivation of bait: One week before stocking, cultivate plankton, generally organic fertilizer, amino acid fertilizer paste, etc. can be used. 4. Stocking fry: Before stocking, soak in salt solution for 10 minutes, and then release 2,000 fry of 5 cm in length per mu.

1. Herring breeding technology

1. Environmental conditions

(1) There must be a large water source near the breeding pond, and the water quality must be clear and clean. Under normal circumstances, if there is no chemical plant or mine nearby, the water quality can mostly meet the requirements (the breeding pond does not need to be near a river).

(2) Ponds are generally oriented east-west and can be built in well-ventilated and well-lit areas. The area should be within 5 mu and should not exceed 10 mu.

(3) Before breeding, oxygenation equipment, pumping equipment, and power maintenance facilities must be prepared.

2. Pond disinfection

(1) Only 10 cm of silt should be retained in the pond, and the rest should be cleaned up (new soil can be replaced after the silt is cleaned up), and then disinfected with lime or bleaching powder (if it is in the north, winter is not suitable for breeding black carp, but pond cleaning can be done in winter). The amount of quicklime used is 200 catties/mu.

(2) The banks of the pond should be reinforced and any damaged areas should be repaired promptly.

3. Cultivate bait

One week before stocking the fry, use organic fertilizer, lime, and chicken manure in the pond, with 600 kilograms per mu. Three days later, use amino acid fertilizer paste, with a dosage of 2 kilograms per mu, so that some plankton can be cultivated.

4. Stocking fish fry

(1) After the bait is cultivated, start stocking. Select healthy, energetic, uniform-sized, and disease-free fry for stocking. Before stocking, soak the fry in 4% salt solution for about 10 minutes to kill the bacteria on their body surface.

(2) The stocking quantity should be such that there are clear gaps visible on the water surface. Generally, 2,000 5-cm-long fry can be stocked per acre of pond.

(3) After stocking, use amino acid fertilizer paste once every two weeks, with a dosage of 1.6 catties per mu, to increase the number of plankton.

5. Feed properly

(1) From May to June, feed 4 times a day. From July to September, feed 3 times a day. After October, feed 2 times a day. Fresh feed can be snails (or clam meat, insect larvae), 400 kilograms per mu, and plant feed can be corn, wheat bran, and soybean cake.

(2) During the breeding process, do a good job of disinfection and pay attention to maintaining water quality.

2. How to feed black carp to make it grow faster

1. Feeding method

(1) Black carp fry mainly feed on plankton. When they grow up, they can be fed with snails, clams, shrimps, aquatic insects, etc. When they are fed artificially, special feeds need to be prepared for them. Generally, hay powder, silkworm pupae, vegetable cakes, and barley can be mixed in a ratio of 4:3:1:2 and then fed.

(2) If you want to raise other fish together, you can use fish meal, soybean cake, rapeseed cake, wheat bran, barley, and corn as feed, and then add a large amount of crude protein to promote the growth of fry.

2. Feed selection

(1) Pellet feed

Usually you can choose to use artificial compound feed with a crude protein content of more than 30%. The feed particle size is required to be 4 mm and the length is 1.5-2 times the particle size.

(2) Formulated feed

① Vegetable cake 10%, barley 20%, hay powder 40%, silkworm pupae 30%.

② Rapeseed cake 5%, soybean cake 10%, silkworm pupae 5%, wheat 5%, green hay 40%, cotton cake 30%, fish meal 5%.

③Soybean cake 47.5%, fish meal 35%, yeast 1%, inorganic salts and other substances 16.5%.

3. Do black carp eat small fish fry?

1. Generally speaking, black carp will not eat small fish fry or fish eggs because they are not very interested in other fish, and they are not active and do not swim fast. Their food mainly consists of some slow-moving animals, such as shrimps, clams, snails, etc.

2. Although black carp generally does not eat small fish fry, it is recommended not to raise them together with fish fry, or to raise them together, to prevent the fish fry from being accidentally eaten by black carp.