First, the bait feed
1. The types of bait mainly include fresh snails, white buckwheat, corn and wheat.
2. Early feeding (from April to May) The water temperature is relatively low, and the breeding seedlings have just been put in. The types of feeds to be fed are fine and the amount is less. The shellfish, such as fresh snails, were mainly used for feeding, and some of the shellfish were fed with a set of flowers. The daily feeding amount was about 5% of the body weight of the pond in the pond, and the middle period (from June to August) was suitable for water temperature. The Chinese sturgeon grew. Strong, large amount of feed, mainly feed corn, wheat and other plant foods, soaked and cooked, and mixed with fresh fish flowered white fish mixed into bait, including plant food and flower white peony The ratio is 1:2, and the daily feeding amount is 15% to 20% of the body weight of the pond in the pond. After the late period (after September), due to the weight gain period of the Chinese sturgeon, the amount of protein needed for the feeding of the diet should be high and the ratio must be high. Slightly less in the medium term, it is mainly fed with white peony, and the daily feeding amount is 10% to 15% of the body weight of the pond in the pond. It is no longer fed any food until the water temperature is below 15°C.
3. Feeding methods The cultivated flower white worms are bred into small pieces by pulling nets, kneaded together with bait to form lumps, and placed on the part of the food table that has not entered the water surface. Feed 2 times a day, 30% of the daily feed intake in the morning, and 70% of the daily feed intake in the evening. After the food is fed for 2 hours, check the food table in time, and make appropriate adjustments according to the amount of leftover bait on the food table.
4. The food table cleans and feeds the bait after 3 hours. Remove the bait from the table. Pull the table out of the water every 3 days. Spill the table with 10010-6 potassium permanganate solution to clean it.
Second, water quality regulation
1. After adding water to the stock, keep the pond water level for 1 week and start adding water again. Add water once a week for 20 centimeters each time until the water depth reaches 1.5 meters.
2. Change the water to change the water after the first row and then fill the water. In the previous period (before June), change the water 20 centimeters every two weeks. In the middle period (from June to September), change the water every 30 days by 30 centimeters. In the later period (September Afterwards) Change water 20 centimeters every half month.
3. During aquaculture, every day at 2 pm and at 9 pm, an aerator will be opened for 1 hour; every 10 days, with lime, 10 kg of water will be splashed once, and the whole pool will be spilled once; every other month will be used according to the product. The requirements in the instruction manual alternately sprinkling microbial agents such as photosynthetic bacteria and EM bacteria.
Three, grass management
During the cultivation of Chinese sturgeon, it is necessary to keep the area of ​​aquatic plants in the pond at about 1/3 of the aquaculture water surface. This ensures that the water body has sufficient light and provides a habitat for the Chinese sturgeon to cool down during the summer.
IV. Disease Prevention
1. Remove the remaining bait in time to prevent the bait from contaminating the water quality and the bottom of the pool. Feeding animal bait flowers were all housed in Chinese sturgeon breeding ponds, and they did not purchase exotic bait and ice-fish.
2. Strengthen the management of aquaculture water quality, change water regularly; regular use of quicklime or microbial preparations to regulate water quality; regularly open aerators.
3. Regularly disinfect foodstuffs and culture tools with 10010-6 potassium permanganate solution.
4. Feed the baits once a month for 3 consecutive days. The main components of the drug are rhubarb and isatis root, the ratio is 1:1, and the amount is 2% of the amount of bait.
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