In the fall, fish are extremely susceptible to acute diseases such as rickets, small caterpillars, gill rot, and water mold disease, which are commonly referred to as "autumn crickets." Prevention and control of fish to send "Autumn Festival" should be a good eight.
Improve the ecological environment. Pay attention to ecological control, properly feed full price concentrates, tender grasses, etc., and eat early to meet the nutritional needs of fish growth to improve their immunity.
Actively add new water. Adding new water can bring oxygen and various nutrients, such as iron, manganese and silicon, etc. It can also dilute the organic matter and metabolic toxicants in the pool water, which is more beneficial to disease prevention.
Do your best to control the water level. When you need to use the pool water to water the crops, you should try your best to maintain a deep water level of 70-80 cm in the pond.
Drugs purify water quality. Placing chemical agents into the pool to purify and improve water quality can reduce fish disease. Such as superphosphate, trichlorfon, copper sulfate, bleaching powder and so on.
Strengthen fish disinsection. Fish ectoparasitosis is a predisposing factor for many diseases, and observation must be strengthened to eliminate pests completely and prevent the harm of various complications.
Appropriate add baits. Regularly and appropriately add "fish and spirit" and salt in fish feed to enhance the fish's ability to resist disease.
Avoid sturgeon stirring. For ponds with more stocks of squid, feed the corresponding concentrates and feed them as much as possible so that the lively squids are fully lazy and avoid mixing water.
To neutralize pH. Autumn ponds are often acidic, and fish in the acidic environment, the metabolism slows down, ingestion decreases, digestion is poor, and disease resistance is weak. Therefore, quicklime should be applied regularly and moderately to neutralize pH.
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