Materials and Methods
Pond conditions
The transportation facilities are convenient, the power supply is normal, the water intake and drainage are convenient, the water source is non-pollution, and the water quality meets the GB11607-89 national fishery water quality standard. The area is between 3 mu and 10 mu, which is 3.8 mu.
2. Facilities
It is equipped with a 3-kilowatt impeller aerator, a 2.2-kilowatt submersible pump and a bait feeder.
3. Seed stocking
(1) Clear ponds are disinfected, clearing ponds and clearing thoroughly with bleaching powder or quick lime for 10 days before stocking, completely killing wild fish and enemy pests.
(2) Fish fry stocking time, on May 15th of that year, a total of 500,000 fry were released. On July 5th, large-scale summer flowers and Dingtang were cultivated for cultivation of first-year fish species, and when the pond was set, 15,000 acres of summer flowers were planted. tail.
(3) Fish fry underwater pond to prevent air bubble disease. As the fry grows, it gradually rises to the highest level.
4. Feeding management
(1) Selection of feed
15 days later, the fry was mixed with soya-bean milk and raw mustard cake and splashed along the edge of the pool. After 15 days, the crushing material was fed into the crushing material. After 1 month, the material was fed on the 1st material. After 2 months, the grass and fish species were changed. Expanding material.
(2) Feeding method
After the artificial feeding, it is gradually converted into a feeding machine for feeding. At the same time, according to the fish body weight, the water temperature is high or low, the water quality is good or bad, the fish health status and the weather changes, the feeding amount is flexibly grasped, and adhere to the "Four Ding" and "Five Look at the principle of feeding.
5. Daily management
(1) Water quality management: Flush once every 3-5 days during summer season, add 15 cm to 20 cm of water every time, and periodically sprinkle one water quality improver every two months after September (photosynthetic bacteria and EM bacteria are alternately used.) ), keep the pool water, live, tender and cool.
(2) Qintangtang insists on hunting the ponds in the morning and in the evening, and uses aerators rationally, and turns them on as early as possible.
(3) Make a diary of pond production. 6. Fish Disease Prevention
Through several years of stocking and comparison, disease-resistant grass carp is superior to native grass carp in terms of disease resistance. There is almost no occurrence of hemorrhagic disease and other diseases. Parachute disease is the main disease. Therefore, insecticide and clearing can usually be observed.
Harvest results
The large-size summer flowers were sold at the beginning of 1.7, with specifications of 75/kg, 1865 jin, and 140,000. The fish species were sold at the end of the year, and the specifications were 6 tails/jin, 7500 jins, 450 jins of flowers and 732 jins of white locusts.
2. Economic analysis
(1) Production cost: The total cost is 41,700 yuan, including 5000 yuan for fry, 3,190 yuan for feed, 1,900 yuan for pond rent, 1,500 yuan for electricity, 400 yuan for medicine, and 1,000 yuan for other.
(2) Income and profit: The total income is 70,644 yuan, of which: 22,380 yuan for grass carp, 45,000 yuan for first-year fish, 1,464 yuan for white-chain, 1800 yuan for calyx, 28,944 yuan for profits, 7,617 yuan for mu. The coefficient is 1.2.
Summary and discussion
1. According to past experience, during the cultivation of grass carp first-year-old fish species, “enteritis type†hemorrhagic disease is prone to erupt, and the death rate is as high as 70% or more, directly affecting the yield and benefits. The disease-resistant grass carp well avoided this risk. .
2. Disease-resistant grass carp feeding, can reduce the amount of stocking, increase out of Tang specifications, with 6,000 to 8000 tails per mu is appropriate, the outlet pond size is appropriate to 0.5 kg/over, adapted to the fish farming in the morning market Claim.
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