The ponds used to prevent and treat diseases during the summer breeding process. It is inevitable that there are some residual substances. It is necessary to constantly change new water, prevent the deterioration of the pool water, and maintain the transparency of the pool water. Generally, the crab pool should be more than 35 cm. Changing the water is best done before the last shelling of the crabs. It will not only improve the water quality, but also make the crabs shell out neatly and smoothly. Change the water once every 10 days or so, and change the amount of water at least 30% of the total.
Ensure adequate nutrition
During the fattening period of crabs, it is advisable to feed the crab-specific material with a protein content of 32% or more. The amount of daily feeding is about 10% of the total amount of crabs. The actual production should be based on 2 hours to 3 hours after feeding. In the later period, as the temperature and water temperature gradually decline, the daily feeding volume will gradually decrease. Feeding time is usually dominated by early evening and supplemented by early morning.
Protection of physical health
During the fattening period of crabs, it is necessary to persevere in the prevention of pests and diseases, and to prevent them in the end. Especially for the prevention of ciliate diseases, we must adopt a combination of “eliminating consumption†and “internal administration†to prevent the occurrence of pests and diseases. Can be used in the crab after the last shelling 10 days with chlorine dioxide and other drugs Quanchiposa 1, and can be added to the feed to prevent disease treatment of crabs with drugs bait feeding, and even fed 5 days to 7 days.
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