First, steady water and water. The water temperature in the high-temperature weather pool is stable at about 1 meter. If the temperature difference is too large, it will be detrimental to the growth of the crab. If the depth is too deep, the aquatic grasses will float easily and the rainstorm season will promptly drain the water. During the summer, the water exchange is usually performed 5-7 days. Products Livestock Epidemic Prevention Livestock Epidemic Prevention Products,New Veterinary Gloves 100Pcs/Box,Disposable Long Arm Gloves,Long Cutting Gloves Jinan Mucho Commercial Inc. , https://www.muchovet.com
Second, grass care grass. Water grass is a habitat for crabs and is an important carrier for self-purification of ponds. It can be used to plant aquatic plants or move into floating plants depending on specific conditions. The overall control of water plants covers an area of ​​about 1/3 of the pond area.
Third, remove the residual bait. The summer bait is susceptible to deterioration. The amount of bait and the species to be baited are appropriately adjusted depending on the circumstances. If the remaining bait is not added in time, the water quality will be affected.
Fourth, increase the percentage of feeding of plant foods. Summer crabs grow fast and require various types of nutrients. Adding some plant-based foods such as pumpkins, wheats, etc., in feeding foods can effectively reduce costs and increase efficiency.
Fifth, adjust the pH, add inorganic salt in water. Frequent rain in summer causes acidic water in crab ponds to cause abnormal crab shells, which can be splashed with quick lime 10-15 PPM; if the water quality is too high, it can be adjusted by changing the water and using fruit acids.
Sixth, strengthen the patrol pool and do a good job in preventing diseases. In the summer, crab ponds are most prone to lack of oxygen, and it is necessary to pay close attention to the abnormal behavior of crabs. If a large number of crabs gather on the shore of a pond in the early morning or evening, they are still not watered when they are alarmed. This indicates that the pool water is lack of oxygen, and oxygenation and water exchange are needed immediately. The patrol pool should also pay attention to the feeding status of the crabs, the number of shells, check the light protection facilities, repair loopholes, and prevent predators.
Summer is the crab season, feeding should maintain the freshness of feed, often use biological agents to regulate the quality of water and bait feeding, while the rational use of bottom reform to improve the bottom, keep the water fat, live, tender, cool, and every other half Monthly disinfectants such as chlorine dioxide should be spilled. Once the crabs are found to be dead, they should be analysed and found out in time to find out the reasons for the disease and take the remedial measures. The prevention and treatment should be combined and prevention should be emphasized.