High temperature Fish Pond Diseases occur frequently in Summer how to manage Summer Fish Pond

In the summer harvest season, the key season of aquaculture, with the increase of air temperature and water temperature, the appetite of fish and shrimp increases, food intake increases, and enters the peak growth period. In summer, water quality is changeable, diseases occur frequently, hypoxia flooding ponds, pollution of dead shrimp and other emergencies occur frequently. Therefore, the vast number of farmers need to do a good job in the "five precautions" of fish ponds to promote the production and efficiency of aquatic products.

Fish pond

1. Anti-hypoxia flooding pool

The temperature difference between the upper and lower layers of the water body is large, a large number of plankton breed are too dense, the weather changes and other reasons, it is easy to make fish anoxic flooding pool, so the best way to prevent floating head and anoxic flooding pool is to reasonably equip and use aerator, generally 4 mu of fish ponds are equipped with 1 kilowatt power aerator, start at noon in sunny days, open in the early morning on cloudy days, open in the middle of the night with continuous rain, do not turn on in the evening, and the floating head starts in advance.

Second, prevent the deterioration of water quality

At present, the water temperature is high, the water quality changes rapidly, coupled with the increase of feeding, the excretion of fish is strong, and the water quality is easy to deteriorate, so the water quality must be adjusted well. The common methods are as follows: (1) add new water regularly: add new water once every 7-10 days, adding 15-20cm each time. In serious cases, it is appropriate to adopt water exchange measures to maintain good water quality. Fish ponds should try to keep the highest water level throughout the summer. (2) stirring the sediment regularly: stirring the sediment can promote the decomposition of the sediment, stirring once in 10-15 days, each stirring area is more than 1/3 of the water area, the effect is the best at noon on a sunny day, but do not stir when it is muggy and the air pressure is low. (3) Application of microbiological agents: EM6 Johnson solution, nitrifying bacteria, polypeptide live bacteria king, nitrifying agent, ecological active water element, probiotic-80, Daigai pioneer and other preparations were applied every 10-15 days to maintain water balance and stabilize algae phase.

Third, prevent the occurrence of diseases

In the hot season, the water environment is not good, pathogens breed, which is easy to cause diseases, so we must carry out the principle of "prevention first, prevention is more important than cure" and carry out targeted prevention and control. In addition to adjusting the water quality and feeding scientifically, water body disinfection and internal administration prevention should be carried out regularly, and environmental protection and safety drugs such as Yulimide, water diversion pioneer and quick sterilization should be used alternately every 20-25 days. in addition, in the feed mixed with appropriate amount of emulsified garlic treasure, appetizer detoxification powder, immune polysaccharides, feed Baijing, whole intestines Shu, Yi Kangyuan and other internal products, the cycle is 5-7 days, once or twice a month.

IV. Prevention of feed deterioration

At present, it is the peak growing season for fish, shrimp and crabs, and the amount of feed accounts for about 70% of the feed for the whole year. Scientific feeding and selection of nutritious pellet feed can promote the healthy and rapid growth of fish, while poor quality, moldy feed and improper feeding can lead to the occurrence of diseases, deterioration of water quality and increase in production costs. Therefore, it is necessary to select high-quality feed, a small amount of storage, scientific storage, to prevent mildew, at the same time adhere to the four fixed (timing, fixed point, fixed quality, quantitative) feeding, timely removal of residual bait to prevent corruption and pollution of water quality.

V. Prevention of pollution

At present, in the summer harvest, phenomena such as wheat straw thrown into fish ponds or straw returned to the field and washed by Rain Water into the river occur frequently, resulting in water pollution in fish ponds and incidents of dead fish and shrimps. Therefore, it is necessary to enhance the awareness of prevention and pay close attention to the sources of pollution. It is necessary to strengthen the observation of the water quality environment of the source, find anomalies, immediately stop the water, and at the same time do a good job in publicity to nearby farmers in advance.