Prevention and treatment of wilt and shrunken disease of bighead carp
1. Cause: due to stocking too dense, insufficient feed, resulting in part of fry or fish species do not get enough feed and emaciation, death.
2. Symptoms: sick fish dry, thin, big head and small tail, back like blade, gill pale, severe anemia, slow activity, body color black, soon died.
3. Prevalence: This disease occurs mostly in the late stages of fish breeding. Fish species and over-crowded adult fish in overwintering ponds are caused by inadequate feeding due to improper stocking density and matching ratio, especially bighead carp.
4. Control methods: strengthen feeding management and feeding work, feed well before overwintering; master the proportion and stocking density.
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Key points of fishery production in winter
With the advent of winter, the focus of fishery production began to shift gradually. Recently, the author visited Yang Zhuangzhi, director of Chengdu Aquatic Technology Promotion Station, and asked him to introduce to you the related technical measures such as fish pond management and pond fish overwintering, which are of general concern to farmers. In winter fishery production, what should be done in order to provide favorable conditions for the high yield of adult fish in the coming year? Yang Zhuangzhi said: to sum up, fish culture in winter should mainly do a good job in seven aspects. Transformation and utilization of ponds in winter
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Spicy fish head with shredded silver
Raw materials: silver carp head 1 (about 900 grams) excipients: vermicelli 200 grams, bright red green finger pepper 75 grams, ginger, pickled pepper right amount. Seasoning: pepper, salt, monosodium glutamate, chicken essence, cooking wine, sugar, pickled pepper oil, chopped onions, onion oil. Practice: 1, vermicelli first use warm water to make it through. 2. Chop the peppers and mix them with pickled pepper, pepper, salt, monosodium glutamate, chicken essence, cooking wine, sugar and pickled pepper oil. Marinate the fish head for 5 minutes. 3. Put all the fish heads in two halves
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