How many fish can be raised in an acre of land?

An acre of fish pond can raise about 400 grass carp.

Different water bodies are fat and thin, and the proportion of fish farming is different. If the water body is rich, it can be mainly silver carp, 120- 150 fish, 25-30 bighead carp, 100- 120 grass carp, 12.

The normal PH value of fish pond water is 6.5~8.5, while the PH value of fishery water, fish and bait in China is 6.5~8.5. The optimum PH value of CYPRINIDAE is weakly alkaline, that is, PH 7.5 ~ 8.5, while that of Salmonidae is neutral, with about 7 species. When the pH value of fish pond water exceeds the optimum range, it will have a negative impact on the life activities of fish, thus affecting the effect of fish farming, so they are especially suitable for infectious fish diseases.

Matters needing attention in fish farming in fish ponds

Dredge the irrigation and drainage channels, but also clean up the silt in the pond, which may be more, only need to leave more than 20 centimeters of silt. An acre of pond is disinfected with 200 Jin of quicklime, and the water is kept 2 meters deep. After a week of cleaning, no medicine can play a role, in order to raise fish. Sometimes bleach can also be used for disinfection.

It is hot in summer, and the temperature is high and low in autumn, so fish are prone to get sick, so lime should be sprinkled in the pond for half a month during the high temperature period, with an acre of 20 kg. Spray 250g of 90% trichlorfon crystals with an aqueous solution. Sterilize the fed food, such as copper sulfate. Feeding utensils should also be bleached and cleaned. Sometimes gastrointestinal diseases are popular and food can be fed with garlic.