In September, the temperature in Chongqing began to drop, the average water temperature may be about 23 ° C, in the suitable for the rapid growth of fish at the same time, the number of fish metabolites and residual bait increased, water quality is very easy to deteriorate, pathogens are easy to breed, easy to break out of various diseases, the breeding units should increase feeding management and water quality regulation, and take practical and effective measures to do a good job in disease prevention and control.
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1. Grass carp hemorrhagic disease.
2. Grass carp red skin disease, grass carp rotten gill disease, grass carp enteritis disease.
3. Wheelworm disease: mainly endangers the fry and fingerlings of various types of freshwater fish.
4. Bacterial sepsis: silver carp, bighead carp, crucian carp, carp, etc. are prone to occur.
5. Chinese loach disease: Greater Chinese loach mainly harms grass carp over two years old, and silver carp mainly endangers silver carp and bighead carp above second age.
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1. Grass carp hemorrhagic disease: mainly immune prevention, disinfection of the breeding environment with quicklime, etc.; strengthen feeding management, ecological disease prevention, regular filling with clean water; fill the pond water in the high temperature season, maintain excellent water quality, and feed high-quality, palatable feed.
2. Treatment of grass carp bacterial gill rot, enteritis and erythroderma: sprinkle with bromochlorohemine once a day for 3 to 5 days.
3. Wheelworm disease: Before the stocking of fish species, each cubic meter of water body is immersed in 0.5g~1g copper sulfate for 15min~30min for preventive disinfection. Treatment of wheelworm disease: each cubic meter of water with 0.7 g of copper sulfate and ferrous sulfate mixture (5:2) sprinkled in the whole pool, or 0.4 g of matrine per cubic meter of water, the whole pool is sprinkled once to 2 times.
4. Fish bacterial sepsis: preventive measures to disinfect the breeding environment with quicklime and other disinfection; regularly sprinkle improved water quality modifiers in the water body, reduce the consumption of water oxygen, optimize the water environment, strengthen feeding management, add Vc to fish feed in an appropriate amount, and improve the disease resistance of fish. The treatment measures generally adopt the combination of internal and external use, regularly sprinkle chlorine dioxide, quicklime and other detoxifiers on the whole pool for water disinfection, florfenicol powder mixing feeding, the dosage per kilogram of fish is 20mg ~ 40mg, once a day, continuous use for 3 days to 5 days.
5. Chinese loach disease, anchorhead loach disease: before the stocking of fish species, soak the chinese bream larvae with a combination of copper sulfate and ferrous sulfate (5g of copper sulfate and 2g of ferrous sulfate per cubic meter of water) to kill the Chinese bream larvae on the fish body. Treatment measures: each cubic water body with refined dimethods 0.5g ~ 1g liters of whole pool sprinkled, every other day once, continuous use 2 times.
6. Scientific use of medicine. Fish diseases should be diagnosed and treated in a timely manner. You can consult professional and technical personnel in aquaculture disease prevention and control or consult through the "National Aquatic Animal Disease Remote Auxiliary Diagnosis Service Network" to achieve the right medicine and scientific prevention and control. "Yuanjian Network" website: http://www.adds.org.cn/; "Yuanjian Network" mobile phone built-in APP: China Aquatic Products.
Source: Chongqing Aquatic Animal Disease Prevention and Control Center