In order to adjust the structure of aquaculture and open up new ways for farmers to increase income, in 2006, the fishery technology promotion station in Tongren Prefecture of Guizhou Province implemented the Aquaculture Structure Adjustment Project in the Yuling Village of Guling Township, Yinjiang County, using 32.6 acres of contiguous rice fields. More than a month of breeding, the average per mu rice field 640 kg, 118.73 kg of fresh fish, fish production value of 2849.52 yuan, and achieved good economic benefits and social benefits.
First, the basic situation of aquaculture Guling Town, Yinjiang County Village is located in the suburbs of Yinjiang County, the terrain is relatively flat, convenient transportation, India River from the village through and over, good water quality, without any pollution, rice fields concentrated into a film. No fish was raised before the project was implemented. In 2006, 32.6 acres of paddy fields were concentrated in the village.
Second, field selection and field engineering
1. Field selection. The concentrated contiguous sunny rice field was selected for convenient drainage and irrigation, and good water retention. The source of the water is the Yin River, with sufficient water and no pollution.
2. Excavation fish squid ditch. In the corner or side of the paddy field, 8.0 to 10% of the paddy field area and 1 to 1.5 meters in depth are to be excavated. The fishing rod is plastered on the surface of the fish to build a shelf above the fishing rod. The width of the inside of the rice field is 30 cm. The fish ditch is in centimeters and the fish ditch is in the shape of “#†or “艹â€. The fish ditch is connected to the fish gills.
3. Tian Hao heightened and reinforced. In order to prevent the dumplings from falling, reinforce the height of the field stems to 80 cm and width 50 cm.
4. Build anti-escape facilities. In order to build a barrage, use a bamboo foil or wire mesh at the inlet and outlet.
Third, fish species stocking
1. Fish selection. Select a fish species that is neat and has good physical condition and no injuries.
2. Fish stocking. After the seedlings are transferred for 7 days to 10 days, the rice can turn green. Add new water at this time so that the water level in the paddy field is 15 centimeters to 20 centimeters, and fish species will be released immediately. Each mu of 50-gram-sized fish was sent back to the fish gills, cut off the fish ditch, and feed intensively reared in the gills. After the fish was returned to its constitution, the fish ditch was opened.
Fourth, feeding and management
1. The clouded back is omnivorous, mainly feeding on plankton, aquatic insects, benthos, organic debris, algae, and aquatic plants in the water. Due to the lack of natural feed in paddy fields, it is necessary to feed a certain amount of feed for replenishment. The feeds are fed twice a day in the morning and evening. The feed is usually from 9 am to 10 am in the morning and from 5 am to 6 pm in the afternoon. Feeding protein content in 28% to 30% of floating feed, the ratio of feeding in the morning and evening was 2.3 of the whole day, and adjusted according to season and weather conditions. The feed was fed according to the four principles, and the amount of feed for the whole day was 1% to 3% of the fish body weight. Feeding method is "M" shape.
2. Adhere to daily field inspections. Observe the fish activity and feeding conditions, check whether there is fish disease, whether the drainage and irrigation facilities in the rice fields are in good condition, whether there are rat holes in the field stems, etc. In particular, it is necessary to timely drain water on the rainy day to remove debris so as not to block the barriers so as to facilitate smooth drainage.
3. Water quality management. During the breeding process, new water is added for 15 days. Especially when pesticides are applied in rice fields, the fish are rushed to the fish gills and the fish ditch is cut off. After the pesticides have been aged, the water in the rice fields is drained, fresh water is injected, and the fish ditch is opened. Pesticides use high-efficiency and low-toxicity pesticides, and prohibit highly toxic pesticides.
Fifth, fish disease prevention
1. The principle of prevention and treatment supplement. Fish was soaked with 4% salt for 5 minutes when the fish was released.
2. Every day 15 days, garlic is used to grind and feed is made to feed the fish to prevent enteritis and other fish diseases.
3. Liquefied 10 kilograms of quicklime in the fish gills and fish ditch every 15 days to adjust the pH of the water body and sterilize the water body.
First, the basic situation of aquaculture Guling Town, Yinjiang County Village is located in the suburbs of Yinjiang County, the terrain is relatively flat, convenient transportation, India River from the village through and over, good water quality, without any pollution, rice fields concentrated into a film. No fish was raised before the project was implemented. In 2006, 32.6 acres of paddy fields were concentrated in the village.
Second, field selection and field engineering
1. Field selection. The concentrated contiguous sunny rice field was selected for convenient drainage and irrigation, and good water retention. The source of the water is the Yin River, with sufficient water and no pollution.
2. Excavation fish squid ditch. In the corner or side of the paddy field, 8.0 to 10% of the paddy field area and 1 to 1.5 meters in depth are to be excavated. The fishing rod is plastered on the surface of the fish to build a shelf above the fishing rod. The width of the inside of the rice field is 30 cm. The fish ditch is in centimeters and the fish ditch is in the shape of “#†or “艹â€. The fish ditch is connected to the fish gills.
3. Tian Hao heightened and reinforced. In order to prevent the dumplings from falling, reinforce the height of the field stems to 80 cm and width 50 cm.
4. Build anti-escape facilities. In order to build a barrage, use a bamboo foil or wire mesh at the inlet and outlet.
Third, fish species stocking
1. Fish selection. Select a fish species that is neat and has good physical condition and no injuries.
2. Fish stocking. After the seedlings are transferred for 7 days to 10 days, the rice can turn green. Add new water at this time so that the water level in the paddy field is 15 centimeters to 20 centimeters, and fish species will be released immediately. Each mu of 50-gram-sized fish was sent back to the fish gills, cut off the fish ditch, and feed intensively reared in the gills. After the fish was returned to its constitution, the fish ditch was opened.
Fourth, feeding and management
1. The clouded back is omnivorous, mainly feeding on plankton, aquatic insects, benthos, organic debris, algae, and aquatic plants in the water. Due to the lack of natural feed in paddy fields, it is necessary to feed a certain amount of feed for replenishment. The feeds are fed twice a day in the morning and evening. The feed is usually from 9 am to 10 am in the morning and from 5 am to 6 pm in the afternoon. Feeding protein content in 28% to 30% of floating feed, the ratio of feeding in the morning and evening was 2.3 of the whole day, and adjusted according to season and weather conditions. The feed was fed according to the four principles, and the amount of feed for the whole day was 1% to 3% of the fish body weight. Feeding method is "M" shape.
2. Adhere to daily field inspections. Observe the fish activity and feeding conditions, check whether there is fish disease, whether the drainage and irrigation facilities in the rice fields are in good condition, whether there are rat holes in the field stems, etc. In particular, it is necessary to timely drain water on the rainy day to remove debris so as not to block the barriers so as to facilitate smooth drainage.
3. Water quality management. During the breeding process, new water is added for 15 days. Especially when pesticides are applied in rice fields, the fish are rushed to the fish gills and the fish ditch is cut off. After the pesticides have been aged, the water in the rice fields is drained, fresh water is injected, and the fish ditch is opened. Pesticides use high-efficiency and low-toxicity pesticides, and prohibit highly toxic pesticides.
Fifth, fish disease prevention
1. The principle of prevention and treatment supplement. Fish was soaked with 4% salt for 5 minutes when the fish was released.
2. Every day 15 days, garlic is used to grind and feed is made to feed the fish to prevent enteritis and other fish diseases.
3. Liquefied 10 kilograms of quicklime in the fish gills and fish ditch every 15 days to adjust the pH of the water body and sterilize the water body.
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