Efficient and practical techniques for culturing Pelteobagrus fulvidraco

Yellow catfish commonly known as yellow wax Ding, common individual 200-300 grams, its tender meat and less thorns, delicious taste and no scales, not only has nourishing effect, but also has high medicinal value, market sales price of 20 yuan/kg.

1. Seed breeding

1. Pond preparation

The seedling pond is preferably 2500-4000 square meters, and the water depth is about 1.5 meters. After the pond is cleaned and drained, 300-500 kg/667 square meters of decomposed livestock manure is applied to cultivate plankton for feeding by fry.

2. Fry stocking

When a large number of fleas appear in the fish pond, they can be released, generally 40 - 60,000/667 square meters.

3. Feed feeding

In addition to the use of natural bait, but also appropriate feeding paste bait. Available small fish and shrimp, shellfish and other animal feed processed into paste, feeding twice a day, morning, evening each time, mainly in the evening, daily feeding amount of fish weight 2%-5%.

4. Water quality control

Generally, the water is changed once every half month, 1/4-1/3 of the water is changed every time, so as to keep the water quality alive and promote the growth of fry.

II. Adult fish rearing

1. Pond conditions

Pelteobagrus fulvidraco has strong adaptability and low requirements for water quality. Any soil pond or cement pond with sufficient water source, no pollution and good water quality can be used. The area is 300-2500 square meters, the water depth is about 1.5 meters, 10-15 days before fish culture, 80-100 kilograms of quicklime is sprinkled into the whole pond every 667 square meters for sterilization and disinfection, 300-500 kilograms of decomposed pig dung is applied every 667 square meters after 3 days for breeding natural bait organisms, and water is injected 50-80 cm deep, and fish species can be released after 7-10 days.

2. Fish stocking

Generally, 2000-3000 yellow catfish species weighing 10- 20g can be released per 667 square meters of water surface, and the average size of adult fish can grow to about 150g in the same year. In order to make full use of water space and food biological resources and facilitate water quality regulation, 600 silver carp species with a body length of 15 cm, 200 bighead carp species and 200 grass carp species of 1 year old can be mixed cultured on 667 square meters of water surface. It is noted that before the fish species are put into use, 3%-5% saline solution should be used for 10-15 minutes, and the yellow pelagic fish species should be put first, and other fish species should be put after 10-15 days to facilitate the growth of the main fish culture.

3. Feed feeding

Because Pelteobagrus fulvidraco is omnivorous fish, artificial feeding can feed small fish, shrimp, snail meat, livestock processing waste, fish meal and other animal bait, can also feed bean cake, peanut cake, bran, bean dregs and other plant feed, but also can feed artificial compound feed. The reference formula consists of fish meal 15%, bean cake 35%, bran 30%, corn 5%, locust leaf powder 5%, barley 8.5%, auxin 1%, salt 0.5%. Daily feeding amounts to 5%-7% of fish weight. And according to the water temperature, water quality, weather and fish feeding situation flexible control, generally every day at 9-10 a.m. and 4-6 p.m. feed once, morning for 1/3 amount, afternoon feed 2/3 amount, pond mixed culture grass carp, can be 1-2 hours before the yellow catfish feed.

4. Water quality regulation

Generally, from May to June, new water is added once every 15-20 days, and from July to September, water is injected once every 7-10 days, adding 10-15cm of water each time to maintain transparency of about 35cm.