First, adjust the density, grading rearing. After the fall, we can choose suitable weather with relatively cool air, filter the fishes with uneven sizes in the pool, and classify them according to the size of large (20 centimeters), medium (about 15 centimeters), and small (less than 15 centimeters). The fish species can be transferred to a large-scale, well-conditioned fish pond polyculture. The medium and small-sized fish species can be intensively cultivated. The stocking density is generally 3000 to 5000 tails in ponds with a depth of about 1.5 meters.
Second, see water fertilization, reasonable feeding. In addition to fertilizing the water and fertilizing the pool water, the cultivation ponds, which are mainly squid and squid species, should be fed with appropriate concentrates, ie, 9:00 am and 4:00 pm daily for bran, cake or For compound feed, 0.5 to 1 kilogram per thousand fish is cast. In addition to feeding green fodder such as duckweed, young grass, and straw pulp, fish ponds mainly based on grass carp should also be fed with cakes, rice bran, cotton cakes, wheat bran or compound feed. Rethink concentrate.
Third, strengthen management, pay attention to disease prevention. Autumn temperatures and water temperatures are relatively suitable. It is the season when fish diseases are most prevalent. In particular, grass disease is the most serious disease in the fall season. If the disease prevention work is not strengthened, once fish diseases become popular, they are often seriously damaged. Therefore, we must always maintain early, middle, and evening patrol inspections to observe the feeding and activity of pond fish. We must adhere to the “four rules†for feeding and feeding. Residues should be cleared in a timely manner. Food and food establishments should be sterilized regularly and regularly. Feeding disease prevention baits and splashing preventive drugs. Pay attention to pond water quality and timely add new water. Quick lime (about 20 kg/mu) will be applied every 20 days or so to improve water quality and prevent disease-free prevention and disease early treatment.
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