Natural Oxymatrine,Oxymatrine Extract,Bitter Sophora Root Extract Oxymatrine,Natural Oxymatrine Extract Shaanxi The River Pharmaceutical Co., Ltd. , http://www.dahepharma.com
2. Clear ponds disinfect fish seedlings in front of the pond before draining water, digging too much silt, let the sun at the bottom of the pool for 20 days, and then into the water 10cm, with quicklime 75kg ~ 100kg/667m2 watered pulp after Quanchiposa disinfection .
3. Ten days before the stocking of fry and fish fry, the water is filtered and the water depth is 0.6m~1m. Fermented organic manure (manure, cake fertilizer is available, the dosage is depending on the sediment quality of the pond, usually 100kg~500kg/667m2), To raise the natural planktonic bait in the pool.
4. After 3 days to 4 days after fry release, the fry grows to 4cm to 5cm in summer. This method can be similar to the method used in the cultivation of the “Four Homes†fry, with 30,000 to 50,000 fry per 667m2. It takes about 20 days to 30 days, and then it is sparsely divided into ponds and transferred to the breeding stage. From summer flowers, about 50g of large-sized fish species are cultivated, and 8000 to 9,000 summer flowers are placed per 667m2, and stocking 600 to 700 tails of squid and squid are stocked at 6cm to 10cm.
5. Feed the fishes that have just been fished in the ponds. Feed the feeds in the pond for 4 days to 5 days, and feed the zooplankton in the pond. When the fish fry reaches 4.5 cm or more, feed the compound feed. When feeding, tame the food by feeding the fish to the water at the feeding site to send a sound to stimulating the fish before feeding. Then sprinkle a small amount of bait and repeat it repeatedly every 10 seconds. Taming for 10 minutes to 20 minutes, so the cycle of 4 days to 7 days, you can make the fish form the habit of eating groups. The protein content of the feed is about 40%, and feeding twice a day, the bait rate is 3% to 5%.
6. Daily management requires dissolved oxygen to be greater than 3 mg/L and pH 6.5 to 8.3. During the breeding period, every 7 days to 10 days, new water is exchanged for 1 time. The depth of water increases with the increase of the fish body and gradually increases to about 1.5m; the chlorine dioxide concentration is 0.5mg/L Quanchiposa in order to prevent fish disease. And regulate water quality.
1. Pond condition The seedling pool is required to be close to the water source, the water quality is good, the water inlet and the water drainage are convenient, the bottom of the pool is flat, there is less silt, and the pool is firm and does not leak. The area of ​​the summer flower nursery pond is about 667m2. The area of ​​the fish breeding pond is generally 2001m2~3335m2, and the water depth is 1.3m~1.6m. Each fishing pond needs to prepare 1.5kw or 2.5kw aerators, and it is equipped with a pump pump.