Chinese Wutang Aquiculture Technology
2018-04-20 15:00:36
The Chinese Wutangtang belongs to the genus Tanggutang. The Chinese Wu Tang is rich in nutrients, delicious in flesh, and has the effect of accelerating healing of wounds. In addition, the fish is most characterized by the fact that the water can be kept for a week without death in the damp and wet conditions, and is a suitable live animal for export and sales. One of the good seafood varieties for export.
At present, the breeding of Chinese Wudang has begun to take shape, but its feed processing and fish disease prevention and control technology is not perfect, and the range of sea areas suitable for conservation is not wide. In recent years, the efficiency of the Chinese Wudang aquilegia breeding has been relatively high, the technical requirements are not very high, and the risk is small, and it has been welcomed by the coastal masses.
First, the habits of Chinese Wu Tang is a warm water shallow salty freshwater fish. It is mainly distributed in estuaries and harbors and inhabits mud holes or caves. Small size, meat, like eating small crabs, shrimp, fish, shellfish and so on. Wide salinity, optimum salinity 5‰-15‰, slow growth above 21‰. The optimum water temperature is 23-26°C. When the water temperature is lower than 15°C, it is generally in the cave and does not feed outside. The lethal water temperature is below 10°C. A pH of 7.0 to 8.2 is appropriate, requiring a dissolved oxygen level above 4.0 mg/l.
Second, the fish pond conditions and structure Chinese Wudang pond is a wide-salinity fish, the optimum salinity is 5 ‰ -15 ‰, if the salinity is too high (25 ‰ above), fish growth is slow and relatively easy to disease Therefore, the best choice for fish ponds is in estuaries or harbors and coastal areas where fresh water is abundant. Fish ponds are generally sterilized after draining water, and are easy to operate. The area is generally 0.5-1.5 mu. It is appropriate to use a stone-based pond base and a sand-bottomed pond, which should be flat and convenient for water injection. The water depth is about 1.5 meters. Fish tanks, tiles, large-caliber bamboo tubes, or gray plastic tubes can be used as hidden inhabitants in fishponds, commonly known as fish houses. There are holes or seams on the side and top of the fish house to facilitate fish movement.
Third, put the seedlings before the preparation of the pond before laying seedlings, the pond to drain water. After dredging, exposure to the bottom of the pool dry, after exposure to lime per acre 100-150 kg or 5-10 kg of bleach disinfection. After 3-5 days, concealed objects such as tiles and gray plastic pipes are laid at the bottom of the pool, and then the water is filtered with a 40 mesh net, the water depth is 60-80 cm, and ammonium carbonate 0.5-1 kg/mu and superphosphate 0.05 are applied. 0.1 kg/mu fertilizer water.
Fourth, the fry of the release of fertilizer water 3-5 days after the fish can be put, put the seedlings must be put before the fry test more than 12 hours, no problem to put the seedlings. The fish fry before entering the pond can be bathed with 5ppm potassium permanganate solution for about 5 minutes. Be careful to put the fish into the pond from the edge of the pond and put it in time for the dead and injured fish. The fry size is 40-60. / kg, 150-250 kg per mu can be stocked.
V. Feeding and Management 1. Feeding and Feeding Chinese Wutang oysters like to eat fresh or chilled fish, shrimp, crab and shellfish. For rotting odor or bone sting more than the bait do not feed, because the bone sting more bait will pierce the fish's stomach, prone to gastroenteritis, bad food will pollute fish ponds. The fry stage is fed 1-2 times a day, and the adult stage is fed once a day or every other day. Feeding amount depends on the number of fish, feeding, water quality, water temperature, weather, etc., to determine the amount of feeding each time, in order to avoid contaminated fish ponds bait, the general feeding amount of 6% -12% of the total fish weight, It is better to eat basically after feeding for 40 minutes. The bait coefficient is 5-7.
2. Water Quality Management The requirements for water quality in China Wutang are not very strict, but the pond water must not be too turbid. Generally, it is required to thoroughly change the water once a week. If the salinity is high (above 15 )), appropriate fresh water shall be injected. Every 10-15 days, use 5-10 kg/mu quicklime or 0.4-0.5ppm strong chlorine or 1-1.2ppm bleach to splash the whole pond once.
3. Disinfection and disinfection in the breeding process The breeding period of the Chinese pond turtle is long. During the breeding process, residual bait and excrement are deposited in the fish house. There is also foreign seawater with viruses, bacteria and other substances. If not, Timely cleaning and disinfection can cause fish diseases or slow fish growth. The fish house should be cleaned once every two months. The specific method is to drain the fish ponds, catch all the fish first, use the plastic film mats in a cool and well-ventilated place, and then open the hidden inhabitants in the pond. Weeds and other debris should be cleaned up, treated with disinfectant, then moved to a new location and stacked in a fish house, followed by fresh seawater injection. Weighing the total weight of fish and then put it into the pond to facilitate accurate control of the amount of feeding this year, and to find the sick fish or the injured fish, we must promptly separate and treat.
4, heatstroke and winter over the Chinese Wutang quail in the hot season, especially in the hot sun exposure, we must maintain more than 1.5 meters deep, fish house more and small, so that the fish scattered. In winter, when the water temperature is below 15°C, it is generally not for feeding, and it begins to die below 10°C. Before winter, it is necessary to strengthen nutrition and fattening, and move the fish to sheltered or muddy ponds. The fish house can be thickened. Cover it with a layer of mud.
5, harvest listed Chinese Wu Tang to raise the weight of more than 150 grams can be listed, catch big stay small, but should try to avoid other aquaculture products listed in the October-November season, in order to sell a good price.
At present, the breeding of Chinese Wudang has begun to take shape, but its feed processing and fish disease prevention and control technology is not perfect, and the range of sea areas suitable for conservation is not wide. In recent years, the efficiency of the Chinese Wudang aquilegia breeding has been relatively high, the technical requirements are not very high, and the risk is small, and it has been welcomed by the coastal masses.
First, the habits of Chinese Wu Tang is a warm water shallow salty freshwater fish. It is mainly distributed in estuaries and harbors and inhabits mud holes or caves. Small size, meat, like eating small crabs, shrimp, fish, shellfish and so on. Wide salinity, optimum salinity 5‰-15‰, slow growth above 21‰. The optimum water temperature is 23-26°C. When the water temperature is lower than 15°C, it is generally in the cave and does not feed outside. The lethal water temperature is below 10°C. A pH of 7.0 to 8.2 is appropriate, requiring a dissolved oxygen level above 4.0 mg/l.
Second, the fish pond conditions and structure Chinese Wudang pond is a wide-salinity fish, the optimum salinity is 5 ‰ -15 ‰, if the salinity is too high (25 ‰ above), fish growth is slow and relatively easy to disease Therefore, the best choice for fish ponds is in estuaries or harbors and coastal areas where fresh water is abundant. Fish ponds are generally sterilized after draining water, and are easy to operate. The area is generally 0.5-1.5 mu. It is appropriate to use a stone-based pond base and a sand-bottomed pond, which should be flat and convenient for water injection. The water depth is about 1.5 meters. Fish tanks, tiles, large-caliber bamboo tubes, or gray plastic tubes can be used as hidden inhabitants in fishponds, commonly known as fish houses. There are holes or seams on the side and top of the fish house to facilitate fish movement.
Third, put the seedlings before the preparation of the pond before laying seedlings, the pond to drain water. After dredging, exposure to the bottom of the pool dry, after exposure to lime per acre 100-150 kg or 5-10 kg of bleach disinfection. After 3-5 days, concealed objects such as tiles and gray plastic pipes are laid at the bottom of the pool, and then the water is filtered with a 40 mesh net, the water depth is 60-80 cm, and ammonium carbonate 0.5-1 kg/mu and superphosphate 0.05 are applied. 0.1 kg/mu fertilizer water.
Fourth, the fry of the release of fertilizer water 3-5 days after the fish can be put, put the seedlings must be put before the fry test more than 12 hours, no problem to put the seedlings. The fish fry before entering the pond can be bathed with 5ppm potassium permanganate solution for about 5 minutes. Be careful to put the fish into the pond from the edge of the pond and put it in time for the dead and injured fish. The fry size is 40-60. / kg, 150-250 kg per mu can be stocked.
V. Feeding and Management 1. Feeding and Feeding Chinese Wutang oysters like to eat fresh or chilled fish, shrimp, crab and shellfish. For rotting odor or bone sting more than the bait do not feed, because the bone sting more bait will pierce the fish's stomach, prone to gastroenteritis, bad food will pollute fish ponds. The fry stage is fed 1-2 times a day, and the adult stage is fed once a day or every other day. Feeding amount depends on the number of fish, feeding, water quality, water temperature, weather, etc., to determine the amount of feeding each time, in order to avoid contaminated fish ponds bait, the general feeding amount of 6% -12% of the total fish weight, It is better to eat basically after feeding for 40 minutes. The bait coefficient is 5-7.
2. Water Quality Management The requirements for water quality in China Wutang are not very strict, but the pond water must not be too turbid. Generally, it is required to thoroughly change the water once a week. If the salinity is high (above 15 )), appropriate fresh water shall be injected. Every 10-15 days, use 5-10 kg/mu quicklime or 0.4-0.5ppm strong chlorine or 1-1.2ppm bleach to splash the whole pond once.
3. Disinfection and disinfection in the breeding process The breeding period of the Chinese pond turtle is long. During the breeding process, residual bait and excrement are deposited in the fish house. There is also foreign seawater with viruses, bacteria and other substances. If not, Timely cleaning and disinfection can cause fish diseases or slow fish growth. The fish house should be cleaned once every two months. The specific method is to drain the fish ponds, catch all the fish first, use the plastic film mats in a cool and well-ventilated place, and then open the hidden inhabitants in the pond. Weeds and other debris should be cleaned up, treated with disinfectant, then moved to a new location and stacked in a fish house, followed by fresh seawater injection. Weighing the total weight of fish and then put it into the pond to facilitate accurate control of the amount of feeding this year, and to find the sick fish or the injured fish, we must promptly separate and treat.
4, heatstroke and winter over the Chinese Wutang quail in the hot season, especially in the hot sun exposure, we must maintain more than 1.5 meters deep, fish house more and small, so that the fish scattered. In winter, when the water temperature is below 15°C, it is generally not for feeding, and it begins to die below 10°C. Before winter, it is necessary to strengthen nutrition and fattening, and move the fish to sheltered or muddy ponds. The fish house can be thickened. Cover it with a layer of mud.
5, harvest listed Chinese Wu Tang to raise the weight of more than 150 grams can be listed, catch big stay small, but should try to avoid other aquaculture products listed in the October-November season, in order to sell a good price.