Breeding muddy seedlings often encounter embarrassing situations that are easy to breed and difficult to cultivate. The survival rate of seedlings is always stagnant at around 20%. At present, it is difficult to form a large-scale breeding pattern, which seriously restricts the development of muddy industrialization. . After two years of experimentation, the author has improved the survival rate of loach seedlings by the following points. 1. The muddy hatching pond is preferably a cement pond larger than 20 square meters. After three days of hatching and emergence, it is not eager to cultivate the ponds. The original pond is used to cultivate the strong seedlings and the lower ponds are fed with appropriate amount of egg yolks. After one week of cultivation, the seedlings grow to About 1 cm, physical enhancement, ability to avoid predators increased, and then divided into ponds. 2. Clear the pond thoroughly with quicklime or bleaching powder before letting go. Wait until the toxicity of the water body completely disappears after one week, before putting the seedlings, and put a few loach seedlings to test the water in advance before releasing the seedlings, within 4 hours to 8 hours. No abnormal reaction, muddy seedlings can be officially under the pond, the pond water depth is generally maintained at 30 cm -50 cm. 3. Put 300 kg of decomposed manure before putting seedlings in advance to cultivate natural food. After 3 days to 5 days, the plankton in the pond will be propagated to the peak period, and the seed will be put in time. 4. Put about 150,000 muddy larvae per acre or muddy seedlings per mu after the next day. Mud seedlings or special self-made powders are not recommended for feeding soya-bean milk. Although soybean milk is suitable for palatability, it is not easy to control the quality of the water. . 5. The initial stage of breeding loach seedlings requires high dissolved oxygen in the water body. Generally, the dissolved oxygen content of the water body should reach 4 mg - 5 mg/L. The effect of oxygenation by the sprinkler head is better, the spray is small and dense, and the body will not be weak. The seedlings cause harm. The transparency of pond water is controlled at 30 cm or more. After a week of cultivation, the muddy seedlings can be cultured in ponds. Eas Hard Tag,Rfid Hard Tags,Hard Tags,Security Hard Tags WENZHOU BOSHINE ELECTRONIC SECURITY CO.,LTD , https://www.boshine.com