Stingray, also known as yellow wax, is a small, specialty, freshwater, economical fish species with delicate flesh and pure odor. Market conditions have been positive. In the early spring stocking season, the author visited the farmers who hatched the stingray in crab ponds. According to reports, they earned a good price last year mainly for stingrays. So they asked them to explain the cultivation of stingrays in crab ponds. Technology, after the consolidation is now speculation to buy for your reference. I. Set conditions: ?1? Pond selection: should choose a quiet place, the pool is rectangular? Best east-west direction, each area of ​​4.5-10 acres, pool depth of 1.5-2.0 meters, adequate water, water pollution, drainage system • The water inlet is made of a metal mesh cover and a water outlet made of a 100 mesh mesh cloth to prevent baggage from entering into other fish. There is aeration of 1.5 to 3 kilowatts or microporous aeration facilities. ? 2? Ecological construction: The pond should be planted with Elodea, yellow silk grass and other water plants, planting 1-2 meters around the edge of the pool of water peanuts? Control within 5% -10%?, Conditional farmers can A part of the pond is shaded by a quarter of the fish ponds, because in the early days of crab breeding, the water depth is generally controlled at 60-80 cm, and the water level in June-July is adjusted to 1.5 meters or more. The yellow catfish prefers low light. Ingestion, this period from March to June needs shading. ?3? Disinfectant fertilizer water: The requirements of the pond are not strict, but the water quality requirements are very strict, generally 10-15 days before the seedlings with lime to 15-30 kg per acre for disinfection? Avoid crab shelling period? After three days, put into fermented and decomposed organic fertilizer, 100 kg per mu, and use fertilizer to hydrolyze toxin once. Second, aquaculture technology: ? 1? Reproductive seedlings: daily crabs have been stocked before the end of February. In March-April, we can put 10-15 grams of each piece of winter seedlings directly into the pond. From June to July, we can put in large-size summer flowers, 3 kg per mu. ? 2? Feed: Stingray is an omnivorous fish, in general, because the crab pool is fed pellet feed and small trash fish, crabs eat the rest of the feed is enough, do not need to feed individually, to 9 - October can be fed stingray special feed, feeding amount of 2-7%. ?3? Disease prevention and control: The main prevention is to use net insecticides produced by the Beijing fishery once a month. This has no effect on crab culture. ?4? Fishing: After the river crabs were caught in November-December of that year, some of the pond water was pumped out, and the nets were pulled with a small net, and finally the ponds were drained and used for fishing. Large-scale listing, small-size stays in the second year of stocking. paracord bracelet,High Quality paracord bracelet,paracord bracelet Details, CN Dongguan City Risen Medical Products Co., Ltd. , https://www.risenppe.com