Yu Qingping raises grass and fish

Yu Qingping raises grass and fish

Triploid belongs to the genus Lemna of the duckweed family. It is one of the best feeds for grass carp. It is rich in vitamins and has good taste and rich nutrition. Long-term feeding of qingping can accelerate the growth of grass carp, but its disadvantage is that fish is susceptible to enteritis. Scientifically cultivating green grass provides sufficient green fodder for grass carp, which can reduce investment, increase efficiency, and has good use value.
First, the choice of breeding pool.
It is best to choose shaded fields or ponds with shady, low-lying shades, but it is convenient for drainage and irrigation to be easily washed by floods, and soft paddy fields or ponds with an area of ​​0.5-1 mu. If it is a pond, a small amount of filter-feeding fish can be stocked (can be placed on eel and eel) to increase the value of the pond.
Second, daily management.
1, water management. It requires ample water supply and convenient drainage and irrigation. Depth of water is 30-40 cm. If the water is too shallow, it is overheated by the sun and the temperature is too high. If the water is too deep, the fertilizer is difficult to ensure. The use of more fertilizer is not conducive to the reproduction and growth of the young. Therefore, in the spring and summer season, we must master the proper addition and subtraction of water levels and flush new water.
2, fertilization. Organic fertilizers and inorganic fertilizers have good effects in alternation. In Putian, put rot compost 30 as the basal fertilizer in front of Mutian, and then apply 20 tons of composted water every 10-15 days. The inorganic fertilizer is best applied to compound fertilizer because the compound fertilizer contains chlorine, phosphorus, potash, and other nutrient elements. Each mu of compound fertilizer is 15 kg. After fertilization, it is best to walk around the whole pond, so that it plays a uniform role; at the same time, the blue pods are also isolated and dispersed and easy to breed. Scientifically fertilize, the annual mu yield can reach more than 10,000 kilograms, feed grass carp with Qingping, its feed coefficient is about 1:30.
3, pest control. At present, the main insect pests of green ping are buds and spiders. 40% Dimethoate was used for the buds, and 4 bottles of Dimethoate were used to add 1 quick-killing king pesticide to 1 drum of water and 4 barrels of water were sprayed per mu. Spider insects use 90% crystal trichlorfon or dichlorvos plus a kungfu pesticide, or chaotropic insecticide, mu spray 4 barrels of water, the effect is very good.
Third, feeding.
Grass carp seedlings from the 3 to 8 specifications are feeding materials, feeding 10 days of soy milk, and then fed 20 days of peanut bran, fry can grow to 9 soon. After the 9th, the fry began to feed on the blue ping. The 9-10 specifications will feed 30 kilograms per 10,000 fry every day, and 11 kg will feed 40 kilograms per 10,000 tails. For every 50 kg of fingerlings with a size of 3 inches or more, 25 kg of qingping are fed, together with some concentrate feed, 3 kg of peanut bran is fed for every 100 kg of fingerlings. Fish fry grows tall and healthy and lively. At the time of sale, fish farmers are particularly interested.
Fourth, pay attention to matters.
1, must be fed in accordance with the amount of feeding, not too much to prevent grass carp disease caused by enteritis.
2. Sprinkle raw salt water every 20 days, and use 1.5 kg of raw salt to sprinkle the whole pond of water to prevent intestinal inflammation.
3, grass carp has been infected with enteritis, to the right medicine, can use strong chlorine, sulfa drugs and garlic, in accordance with the treatment of intestinal disease treatment and dosage, made bait feeding, and even feed for 3 days.

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