In the late fall season, the intensive cultivation of fish species can meet the requirements of adult fish production.

1. Pull the fishes to screen and select the fishes of different specifications. Put the fishes from 16.5 to 23 centimeters into the adult fish production pond or raise them in a single pond; take 6.6 centimeters, 9 centimeters, and 12 centimeters of fish. Species, respectively, for thin-rearing, smaller for intensive cultivation. For ponds with a depth of 1.5 meters, it is advisable to put 3000-6000 tails per acre.

2. In addition to seeing water, fertilizing and ensuring suitable water for the water, the water quality is good. In addition, the fish pond should be fed in a timely manner and in a proper amount. The feed is usually around 9 o'clock and 16 o'clock. Wheat bran, rice bran, distiller's grains, bean cakes, cotton cakes, etc., for every 1,000 fish species, each feeding 0.3-0.5 kg. For grass carp-based fish ponds, they should be fed with duckweed, water grass and other green materials, and then feed the fine material to avoid competing for food. Under conditions permitting, it is best to use artificial grain bait or puffed bait.

3, fish species during the intensive cultivation period 7-10 days plus (change) new water once. 10 to 20 cm each time. For grass carp-based fish ponds, we must keep the water fresh and remove debris and excess material in time. About half a month, the table was disinfected with bleaching powder, and bags of bleaching powder, copper sulphate and other drugs were regularly wrapped around the food field to prevent fish disease.

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