CATDOLL : CATDOLL: Yellow bone fish should be raised in clean water (how to raise yellow bone fish)

1. Yellow bone fish clear water breeding

Yellow bone fish is an omnivorous fish. It can be fed with cut earthworms, fresh clam meat, small fish, shrimp and other baits, or with complete compound feed. Around April, it can be fed twice a day, with a feeding amount of 1% to 3% of the fish's body weight; from May to September, it can be fed 3-4 times a day, with a feeding amount of 3% to 5% of the fish's body weight; after October, when the temperature drops, it can be fed twice a day, with a feeding amount of 1% to 2% of the fish's body weight. When feeding, it is necessary to feed at a fixed point, and it is not advisable to change the feeding position at will.

The pH value of the water body is controlled between 6-9, and the water transparency is required to be above 35cm. From May to June, the water is changed every 30 days, and 30cm of new water is injected each time. From July to September, the water is changed every 15 days, and 15cm of new water is injected each time. The pond water depth is maintained at about 2m.

The breeding pond needs to be equipped with aerators and other equipment. Depending on the weather and water quality, the aerator can be turned on to increase oxygen. It can be turned on for 1 hour in the early morning and afternoon. The oxygen concentration should be kept above 3mg/L.

Yellow bone croaker has strong disease resistance. If the water quality can be controlled as required, and daily disinfection and prevention work are done well, diseases rarely occur. To effectively prevent diseases, quicklime can be used to improve water quality every 15 days, and chlorine preparations can also be used to disinfect the water body. When feeding bait, Chinese herbal seasonings such as oxytetracycline, rhubarb, and isatis root can be added every month to prevent diseases. Antibiotics can be added in appropriate amounts during the high-temperature growth period to prevent bacterial diseases.

2. Yellow croaker breeding density

For the main breeding, 1,000 fry of 5-8 cm in size are released per mu, and some silver carp, bighead carp, grass carp and crucian carp are reasonably matched. Fresh small fish can be fed as feed. Small fish can be minced into fish paste during the fry stage. As they grow up, they can be chopped into meat pieces and fed 2-3 times a day. The daily feeding amount is 5-10% of the fish body weight. The feeding method is to set up a feeding point in the downwind of the pond, and use a 20-mesh net to enclose an area of ​​about 5-10 square meters. The net is higher than the water surface and 50 cm from the bottom of the pond. Feed is placed in it. When the feed floats in the net, it will not disperse. Yellow catfish (yellow catfish) will come up from the water to feed. In the hot season, pay attention to the deterioration of water quality, replace new water appropriately, and control the water color transparency to 20-30 cm; apply quicklime once every 10-15 days, 15 kg per mu of water and sprinkle it all over the pond; at the same time, pay attention to start the aerator to maintain dissolved oxygen in the water. The yield after one year of breeding is 200-300 kg.

Yellow catfish can also be raised together, with about 200 fish per mu, without increasing the amount of feed, and using it to remove small fish, shrimps and aquatic insects in the pond, and a certain yield can also be obtained. It has a diuretic effect and can be used to treat edema, sore throat and other symptoms.

3. Yellow bone fish breeding conditions

1. Build a pond

When breeding yellow bone croaker, it is necessary to build a pond in a place with good water quality and sufficient water source, and the water depth of the pond should be more than 2 meters, because yellow bone croaker is suitable for feeding under weak light. If the water depth is shallow, the light at the bottom of the pond will be too strong, which will reduce the survival rate of yellow bone croaker.

2. Pond requirements

Yellow croaker likes clear and clean water. When breeding yellow croaker, the pond needs to have a complete drainage system to replace the clean water. The pond should be equipped with aerators, bait feeders and other equipment, and the thickness of the silt at the bottom of the pond should be controlled at about 10 cm to facilitate the catching of yellow croaker.

3. Disinfection

Yellow croaker is a scaleless fish and has strict requirements on the environment. Before releasing the yellow croaker fry, quicklime should be sprinkled on the bottom of the pond, and then the quicklime should be mixed with silt to eliminate the parasites and disease fungi in the pond. After waiting for 7-10 days, clean water can be injected into the pond, and then the yellow croaker fry can be put into the water.

4. Feeding management

When feeding yellow bone croaker, it needs to be fed twice a day, and yellow bone croaker likes to forage at night, so the amount of feed put in at night should be more, and yellow bone croaker has a higher demand for protein, you can provide it with fish meal, vegetable cake, rice bran, bean cake and other feed, and the leftover feed of yellow bone croaker should be removed late at night.