Introducing the technology of breeding blackfish in Baitian
The black-fish cultured in Pak Tin (scientific name Wuji and common name black fish) can make full use of the ecological environment and living resources of the white rice field, so as to enable each fish and blackfish to take their own needs, thereby greatly improving economic efficiency.èŒZhongtian blackfish can produce 800-1000 kg of white buckwheat per acre, 100-150 kg of black fish in the main cultivating field, and 10-20 kg of black fish in a cultivated field. The related technologies are described below.
First, Ling Baitian chose to prepare. Select a plot with sunny ventilation, sufficient water, good water quality, and convenient drainage and irrigation. Among them, fish gills account for 8-10% of the plot area and 1.2-1.5 meters in depth. Under conditions, bricks, stones, and other materials can be used to build a firm and permanent fish gill. The main ditch is connected with the fishing rod. The ditch has a width of 1-1.2 meters and a depth of 0.5 meters. The area accounts for 3-5% of the field area. The shape depends on the shape of the block and can be dug into "T", "+", "#" and other shapes will form fishing rods, main furrows, and branch furrows to ensure free movement of fish in the fields.
The field ridge is reinforced to a height of 0.8-1m, or the old mesh fence is used. The inlet and outlet are firmly blocked by two layers of fish blocking facilities to prevent the blackfish from jumping or burrowing holes to escape. The aquatic vegetables that are transplanted in the field are white and provide blackfish. Hidden places.
Second, the white planting.
1. Apply base fertilizer. Before the planting of white rice, the plots were ploughed and exposed, soaked in water, then 500-800 kg organic fertilizer such as rotting pigs and cow dung was applied per acre, and 40 kg of superphosphate was used as base fertilizer (uniformly applied to the soil surface).
2. White varieties selection. There are many white locust species, and good varieties with high yield, strong resistance, early maturation, and suitable for planting in deep paddy fields should be selected according to local conditions.
3. White transplanting. General requirements in the first half of April for transplanting, between the white line spacing of 1 meter, 0.6 meters spacing, transplanted per acre of 1000 to 1200 or more.
Third, fish species. Select the specifications neat, disease-free without injury, physical fitness, after domesticated feeding artificial feed the next year or black fish species, the next year fish species specifications for 50 to 150 grams, when the fish species is about 10 cm. In February-March, the temperature is about 15°C, stocks are stocked every other year, stocks are stocked every other year, and 250-300 acres are put in the main acre, 20-30 acres are planted in the rearing areas, and the fish are raised every year before the transplanting. In fish gills, put into the field for feeding when the hard white poles are in season; every year, the fish species can also be placed after the clams are transplanted in live trees, and local breeds should be selected according to local conditions. About 10 centimeters of black fish species were generally released after mid-May, 400-500 of the main breeding grounds, and 30-50 tails of nesting farms.
Fourth, field management. The fertilization, medication, and harvesting of Pak Pak are still performed according to conventional agricultural techniques, and the management of blackfish feeding and feeding is emphasized. Black fish after tame, can eat artificial ingredients. For farming in rural areas, local conditions should be widely used to provide feedstuffs. Animal feedstuffs can be minced by small-scale meat grinders. According to 60% of the ratio, plant feeds should be made into powder at 35%, 3% vegetable oil should be added, and 2% fish should be traced. Mixing, using a small amount of cooked starch paste made of pellet feed; can also be specifically cast animal feed (animals rich source of farmers) is also good. Use a dense net or feast to set up a feed table 30 to 50 cm below the surface of the fish, with an area of ​​1 to 2 square meters. The daily feeding rate is fed at a ratio of 6% to 10% of the fish's body weight and is fed 2 to 3 times a day, according to Temperature, water temperature, weather, fish eat, etc. are flexible and determine the number of feedings and feeds. In July, August and September, the weather is good, the water temperature is high, the fish eats food, and the daily feed rate is 10%, feeding 3 times a day.
Sets of eel do not have to cast black fish bait, because Tanaka has put fertility, eel, tilapia, etc., which have strong fertility, and has been continuously breeding baitfish for blackfish.
Every morning and evening inspections of the field, especially thunderstorms and flood days, the blackfish jumps and has strong drill holes. Check whether there are loopholes in the fields and the fish facilities. Find problems and deal with them in time to prevent the blackfish from escaping.
Taizhou Gaogang District Dixin Medical Equipment Co., Ltd. , https://www.dixinmedical.com