First, clear pond ponds should be used for 10 days to 15 days before fertilization. The dry ponds should be cleared of lime with 60 kg to 80 kg of lime or 13 kg of chlorine per acre. With water clear pond, when the water depth is 1 meter, 150 kg of quick lime or 20 kg of chlorine preparation is used per mu to kill germs and wild fish. At the same time, put 1200 kg to 1500 kg of quality compost manure per acre, and three plows and three plows to increase water retention.
Second, the release of shallow fingerlings fish breeding channel speckled? In order to achieve market specifications that year, should invest 15 cm in large-scale species of wintering fish, and to be thin, controlled at 700 to 800 per mu is appropriate. At the same time, a total of 100 centimeters of head fish, 80 species of carp, and 60 species of carp are mixed with 10 cm to 15 cm in length per acre to regulate water quality. It is advisable to put the water temperature above 15°C in late April. All fish species were immersed in 210-6 potassium permanganate or 3%-5% saline for 5 minutes to 10 minutes.
Third, the bait feed catfish mouth tail is based on animal food-based omnivorous fish, bait to artificial feed, mainly supplemented by natural food. With the crude protein content of bait is 30% to 43%, the main raw materials for the import of fish meal, silkworm cocoon, dried cakes, wheat bran, corn, rice bran, mineral additives, vitamin additives. It is best to use compound particles. The particle size should be 5mm. A feeding station is set up on the side of the fish pond and fed at a fixed point. At the beginning of the feeding, the whistle training was used to form a conditional reflex feeding. Feed twice a day, 9am-10pm and 5pm-6pm. Daily feeding rate: 3% from May to June, 4% to 8% from July to August, and 2% to 3% from September to October. Feeding by hand to spread the method, and master the "slow-fast-slow" rhythm, that is, slow start at the beginning, fast-shooting when catching food in the fish cluster, slow to vote when close to full, slowing down the speed of grabbing food. At the same time, it is also necessary to flexibly control the amount of feeding according to weather changes, feeding, etc.
Fourth, water quality regulation First, observe the degree of leakage of fish ponds, usually every 5 cm to 10 cm water level should be promptly replenishment, always maintain a relatively stable water level to ensure that fish have enough water space. The second is to splash 1 to 2 limes per month and put 15 kg to 20 kg per mu. The third is based on a reasonable change in the color of the water, per acre applied to compost pig manure 100 kg to 150 kg. Fourth, in the summer, aquatic plants such as water lilies are distributed in fish ponds, accounting for about 30% of the water surface. This can not only shade high temperatures, but also reduce the load of organic matter in water. The fifth is to open the aerator in due course, usually in the cloudy morning and open in the middle of a heavy rainy night. Through the above measures, it is possible to keep the tea green in the whole cultivation process with a transparency of 30 cm or more, and the water quality is refreshing.
V. Disease prevention and control Channels and tails in shallow leaking ponds have more diseases and are more harmful. Therefore, strengthening the prevention and treatment of diseases is very important. In the whole breeding process, in addition to the general work such as fish pond disinfection and fingerling disinfection, it is also necessary to constantly maintain the environmental sanitation of fish ponds, strengthen water quality regulation, and not to feed altered foods, such as timely drug control. Intestinal sepsis can be fed continuously with 0.18 kilograms of oxytetracycline per 100 kg of bait for 7 days to 10 days, with 2 g/m3 to 3 g/m3 of potassium permanganate in the whole pond; bacterial gill disease Can be used 0.03 g / cubic meter Furazolidone whole spill.
Second, the release of shallow fingerlings fish breeding channel speckled? In order to achieve market specifications that year, should invest 15 cm in large-scale species of wintering fish, and to be thin, controlled at 700 to 800 per mu is appropriate. At the same time, a total of 100 centimeters of head fish, 80 species of carp, and 60 species of carp are mixed with 10 cm to 15 cm in length per acre to regulate water quality. It is advisable to put the water temperature above 15°C in late April. All fish species were immersed in 210-6 potassium permanganate or 3%-5% saline for 5 minutes to 10 minutes.
Third, the bait feed catfish mouth tail is based on animal food-based omnivorous fish, bait to artificial feed, mainly supplemented by natural food. With the crude protein content of bait is 30% to 43%, the main raw materials for the import of fish meal, silkworm cocoon, dried cakes, wheat bran, corn, rice bran, mineral additives, vitamin additives. It is best to use compound particles. The particle size should be 5mm. A feeding station is set up on the side of the fish pond and fed at a fixed point. At the beginning of the feeding, the whistle training was used to form a conditional reflex feeding. Feed twice a day, 9am-10pm and 5pm-6pm. Daily feeding rate: 3% from May to June, 4% to 8% from July to August, and 2% to 3% from September to October. Feeding by hand to spread the method, and master the "slow-fast-slow" rhythm, that is, slow start at the beginning, fast-shooting when catching food in the fish cluster, slow to vote when close to full, slowing down the speed of grabbing food. At the same time, it is also necessary to flexibly control the amount of feeding according to weather changes, feeding, etc.
Fourth, water quality regulation First, observe the degree of leakage of fish ponds, usually every 5 cm to 10 cm water level should be promptly replenishment, always maintain a relatively stable water level to ensure that fish have enough water space. The second is to splash 1 to 2 limes per month and put 15 kg to 20 kg per mu. The third is based on a reasonable change in the color of the water, per acre applied to compost pig manure 100 kg to 150 kg. Fourth, in the summer, aquatic plants such as water lilies are distributed in fish ponds, accounting for about 30% of the water surface. This can not only shade high temperatures, but also reduce the load of organic matter in water. The fifth is to open the aerator in due course, usually in the cloudy morning and open in the middle of a heavy rainy night. Through the above measures, it is possible to keep the tea green in the whole cultivation process with a transparency of 30 cm or more, and the water quality is refreshing.
V. Disease prevention and control Channels and tails in shallow leaking ponds have more diseases and are more harmful. Therefore, strengthening the prevention and treatment of diseases is very important. In the whole breeding process, in addition to the general work such as fish pond disinfection and fingerling disinfection, it is also necessary to constantly maintain the environmental sanitation of fish ponds, strengthen water quality regulation, and not to feed altered foods, such as timely drug control. Intestinal sepsis can be fed continuously with 0.18 kilograms of oxytetracycline per 100 kg of bait for 7 days to 10 days, with 2 g/m3 to 3 g/m3 of potassium permanganate in the whole pond; bacterial gill disease Can be used 0.03 g / cubic meter Furazolidone whole spill.
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