Taipu Hairy Crab is an abbreviation of the Japanese velvet crab Taipu subspecies, commonly known as hairy crabs, stone crabs, and crabs. It is mainly distributed in Nanliujiang River and Qinjiang River Basin in Guangxi. Hepu County is the only place where Nanliujiang River passes through the sea, and hairy crab resources are abundant. Su Xixi, a villager in Dali Village, Dangjiang Township, Hepu County, Guangxi, began breeding crabs in 1996 and is one of the most successful farmers in the county. In 1997, 160 kilograms of crabs were harvested at a price of 100 yuan/kg and a profit of 10,000 yuan; in 1998. A total of 180 kilograms of merchandise crabs were harvested with a profit of 11,000 yuan. In the first half of 1999, under the strong support of the township government, an investment of 40,000 yuan was made to build a pond with an area of ​​6 mu and expand the scale of raising crabs. In 1999, it harvested 120 kilograms of merchandise crabs and earned more than 6,000 yuan. It later made 585 kilograms of harvested crabs and made a profit of 21,000 yuan.
Summing up Su Xixi's main technical experience in breeding hairy crabs is as follows:
1. Strictly site-selected pupil-making pond Dangjiang Town is located at the mouth of Nanliujiang River and is rich in hairy crab resources and food sources; Suxixi built the crab pond beside the tributaries of the Nanliujiang tributary, with convenient water sources, fresh water, and muddy bottom. . The entrance and exit of the crab pond is located in the relative position, and a metal mesh fence is set to play the role of preventing escape and predation. Crab escape is crucial. Hairy crabs are good at climbing and it is easy to escape. Su Xixi builds a 1m high escape wall along the perimeter of a single brick in the crab pond. It is inlaid with a 20 centimeter wide glass near the wall of the wall, and the interior wall is cemented. Cement joints, so that the wall is durable, anti-escape effect is good. The pond is rectangular and east-west direction. The middle of the pond is made in a furrow style. The row is ridged every 1.5 meters and the ridge height is 1.1 meters. The depth of the pond is between 1.o-1.5 meters.
Second, do a good job clear pond disinfection work before the crabs stocking, drain pool water, clear the pool of sludge debris, exposure a few days, put the crabs in the first two weeks, the pond with 75-100 kg of lime thoroughly clear the pond, kill Various harmful aquatic plants, parasites, and pathogenic bacteria in crab ponds can be used for normal growth after stocking.
Third, planting aquatic plants with more than 1/3 of the area of ​​crab pond cultivation of tendon grass or water peanuts, water hyacinth, duckweed, chicken feet grass, etc., to provide a hidden habitat for hairy crabs, shading in the hot season, and effectively improve Water quality and provision of vegetal foods to create suitable growth activities for hairy crabs are conducive to the normal growth of oyster shells in hairy crabs and improve survival.
Fourth, the selection of crab seedlings Hepu hair crab seedlings are mainly natural seedlings, distributed in the area along the Nanliu River; Suxi Xi mainly buy crab seedlings, when selecting crabs should pay attention to choose a healthy hair, appendages intact, the size of the hairy crab , do not stock up on limb injuries and sick crabs. After cultivation, local crabs are rich in resources, have strong adaptability, and have a high rate of discharge. It is better to raise local crabs. Crab seedling density 2500-3500/mu, specifications 60-100 / kg. After 3-4 months of breeding, the size of 65-90g/piece can be sold.
V. Water Quality Management In the process of hairy crab breeding, generally require sufficient water sources, fresh water quality, convenient drainage and drainage, adequate dissolved oxygen, and great transparency. As individual crabs become larger, food intake and excretion increase, oxygen consumption increases, water quality deteriorates easily, and hairy crabs also climb out of the water to escape. Therefore, new water should be replaced in time, and frequent exchanges should be made during the summer heat period. New water, keep deeper than 1 meter.
6. Everyday feeding of hairy crabs is an omnivorous animal and eats animal food. Su Xixi feeds mainly animal feeds, because it is located in the Nanliujiang River, and is rich in animal foods such as sweet snails, small junk fish, oysters, and clams, and is supplemented with plant foods such as bean cakes, rice bran, and bran. Feeding 1 or 2 times, the amount of daily feeding accounts for about 10% of the body weight of the crab. Regularly feed the chitin in the bait, or splash the lime in the whole pond to promote the growth of the crab.
7. Disease prevention and treatment Every 10 months, splash 10~20mg/L lime water or 5~lOmg/L formalin disinfection water, add terramycin and other drugs to the bait to improve the resistance of crab and prevent crab disease. Taipu Hairy Crab is an abbreviation of the Japanese velvet crab Taipu subspecies, commonly known as hairy crabs, stone crabs, and crabs. It is mainly distributed in Nanliujiang River and Qinjiang River Basin in Guangxi. Hepu County is the only place where Nanliujiang River passes through the sea, and hairy crab resources are abundant. Su Xixi, a villager in Dali Village, Dangjiang Township, Hepu County, Guangxi, began breeding crabs in 1996 and is one of the most successful farmers in the county. In 1997, 160 kilograms of crabs were harvested at a price of 100 yuan/kg and a profit of 10,000 yuan; in 1998. A total of 180 kilograms of merchandise crabs were harvested with a profit of 11,000 yuan. In the first half of 1999, under the strong support of the township government, an investment of 40,000 yuan was made to build a pond with an area of ​​6 mu and expand the scale of raising crabs. In 1999, it harvested 120 kilograms of merchandise crabs and earned more than 6,000 yuan. It later made 585 kilograms of harvested crabs and made a profit of 21,000 yuan.
Summing up Su Xixi's main technical experience in breeding hairy crabs is as follows:
1. Strictly site-selected pupil-making pond Dangjiang Town is located at the mouth of Nanliujiang River and is rich in hairy crab resources and food sources; Suxixi built the crab pond beside the tributaries of the Nanliujiang tributary, with convenient water sources, fresh water, and muddy bottom. . The entrance and exit of the crab pond is located in the relative position, and a metal mesh fence is set to play the role of preventing escape and predation. Crab escape is crucial. Hairy crabs are good at climbing and it is easy to escape. Su Xixi builds a 1m high escape wall along the perimeter of a single brick in the crab pond. It is inlaid with a 20 centimeter wide glass near the wall of the wall, and the interior wall is cemented. Cement joints, so that the wall is durable, anti-escape effect is good. The pond is rectangular and east-west direction. The middle of the pond is made in a furrow style. The row is ridged every 1.5 meters and the ridge height is 1.1 meters. The depth of the pond is between 1.o-1.5 meters.
Second, do a good job clear pond disinfection work before the crabs stocking, drain pool water, clear the pool of sludge debris, exposure a few days, put the crabs in the first two weeks, the pond with 75-100 kg of lime thoroughly clear the pond, kill Various harmful aquatic plants, parasites, and pathogenic bacteria in crab ponds can be used for normal growth after stocking.
Third, planting aquatic plants with more than 1/3 of the area of ​​crab pond cultivation of tendon grass or water peanuts, water hyacinth, duckweed, chicken feet grass, etc., to provide a hidden habitat for hairy crabs, shading in the hot season, and effectively improve Water quality and provision of vegetal foods to create suitable growth activities for hairy crabs are conducive to the normal growth of oyster shells in hairy crabs and improve survival.
Fourth, the selection of crab seedlings Hepu hair crab seedlings are mainly natural seedlings, distributed in the area along the Nanliu River; Suxi Xi mainly buy crab seedlings, when selecting crabs should pay attention to choose a healthy hair, appendages intact, the size of the hairy crab , do not stock up on limb injuries and sick crabs. After cultivation, local crabs are rich in resources, have strong adaptability, and have a high rate of discharge. It is better to raise local crabs. Crab seedling density 2500-3500/mu, specifications 60-100 / kg. After 3-4 months of breeding, the size of 65-90 grams/piece can be sold.
V. Water Quality Management In the process of hairy crab breeding, generally require sufficient water sources, fresh water quality, convenient drainage and drainage, adequate dissolved oxygen, and great transparency. As individual crabs become larger, food intake and excretion increase, oxygen consumption increases, water quality deteriorates easily, and hairy crabs also climb out of the water to escape. Therefore, new water should be replaced in time, and frequent exchanges should be made during the summer heat period. New water, keep deeper than 1 meter.
6. Everyday feeding of hairy crabs is an omnivorous animal and eats animal food. Su Xixi feeds mainly animal feeds, because it is located in the Nanliujiang River, and is rich in animal foods such as sweet snails, small junk fish, oysters, and clams, and is supplemented with plant foods such as bean cakes, rice bran, and bran. Feeding 1 or 2 times, the amount of daily feeding accounts for about 10% of the body weight of the crab. Regularly feed the chitin in the bait, or splash the lime in the whole pond to promote the growth of the crab.
7. Disease prevention and treatment Every 10 months, splash 10~20mg/L lime water or 5~lOmg/L formalin disinfection water, add terramycin and other drugs to the bait to improve the resistance of crab and prevent crab disease.
Summing up Su Xixi's main technical experience in breeding hairy crabs is as follows:
1. Strictly site-selected pupil-making pond Dangjiang Town is located at the mouth of Nanliujiang River and is rich in hairy crab resources and food sources; Suxixi built the crab pond beside the tributaries of the Nanliujiang tributary, with convenient water sources, fresh water, and muddy bottom. . The entrance and exit of the crab pond is located in the relative position, and a metal mesh fence is set to play the role of preventing escape and predation. Crab escape is crucial. Hairy crabs are good at climbing and it is easy to escape. Su Xixi builds a 1m high escape wall along the perimeter of a single brick in the crab pond. It is inlaid with a 20 centimeter wide glass near the wall of the wall, and the interior wall is cemented. Cement joints, so that the wall is durable, anti-escape effect is good. The pond is rectangular and east-west direction. The middle of the pond is made in a furrow style. The row is ridged every 1.5 meters and the ridge height is 1.1 meters. The depth of the pond is between 1.o-1.5 meters.
Second, do a good job clear pond disinfection work before the crabs stocking, drain pool water, clear the pool of sludge debris, exposure a few days, put the crabs in the first two weeks, the pond with 75-100 kg of lime thoroughly clear the pond, kill Various harmful aquatic plants, parasites, and pathogenic bacteria in crab ponds can be used for normal growth after stocking.
Third, planting aquatic plants with more than 1/3 of the area of ​​crab pond cultivation of tendon grass or water peanuts, water hyacinth, duckweed, chicken feet grass, etc., to provide a hidden habitat for hairy crabs, shading in the hot season, and effectively improve Water quality and provision of vegetal foods to create suitable growth activities for hairy crabs are conducive to the normal growth of oyster shells in hairy crabs and improve survival.
Fourth, the selection of crab seedlings Hepu hair crab seedlings are mainly natural seedlings, distributed in the area along the Nanliu River; Suxi Xi mainly buy crab seedlings, when selecting crabs should pay attention to choose a healthy hair, appendages intact, the size of the hairy crab , do not stock up on limb injuries and sick crabs. After cultivation, local crabs are rich in resources, have strong adaptability, and have a high rate of discharge. It is better to raise local crabs. Crab seedling density 2500-3500/mu, specifications 60-100 / kg. After 3-4 months of breeding, the size of 65-90g/piece can be sold.
V. Water Quality Management In the process of hairy crab breeding, generally require sufficient water sources, fresh water quality, convenient drainage and drainage, adequate dissolved oxygen, and great transparency. As individual crabs become larger, food intake and excretion increase, oxygen consumption increases, water quality deteriorates easily, and hairy crabs also climb out of the water to escape. Therefore, new water should be replaced in time, and frequent exchanges should be made during the summer heat period. New water, keep deeper than 1 meter.
6. Everyday feeding of hairy crabs is an omnivorous animal and eats animal food. Su Xixi feeds mainly animal feeds, because it is located in the Nanliujiang River, and is rich in animal foods such as sweet snails, small junk fish, oysters, and clams, and is supplemented with plant foods such as bean cakes, rice bran, and bran. Feeding 1 or 2 times, the amount of daily feeding accounts for about 10% of the body weight of the crab. Regularly feed the chitin in the bait, or splash the lime in the whole pond to promote the growth of the crab.
7. Disease prevention and treatment Every 10 months, splash 10~20mg/L lime water or 5~lOmg/L formalin disinfection water, add terramycin and other drugs to the bait to improve the resistance of crab and prevent crab disease. Taipu Hairy Crab is an abbreviation of the Japanese velvet crab Taipu subspecies, commonly known as hairy crabs, stone crabs, and crabs. It is mainly distributed in Nanliujiang River and Qinjiang River Basin in Guangxi. Hepu County is the only place where Nanliujiang River passes through the sea, and hairy crab resources are abundant. Su Xixi, a villager in Dali Village, Dangjiang Township, Hepu County, Guangxi, began breeding crabs in 1996 and is one of the most successful farmers in the county. In 1997, 160 kilograms of crabs were harvested at a price of 100 yuan/kg and a profit of 10,000 yuan; in 1998. A total of 180 kilograms of merchandise crabs were harvested with a profit of 11,000 yuan. In the first half of 1999, under the strong support of the township government, an investment of 40,000 yuan was made to build a pond with an area of ​​6 mu and expand the scale of raising crabs. In 1999, it harvested 120 kilograms of merchandise crabs and earned more than 6,000 yuan. It later made 585 kilograms of harvested crabs and made a profit of 21,000 yuan.
Summing up Su Xixi's main technical experience in breeding hairy crabs is as follows:
1. Strictly site-selected pupil-making pond Dangjiang Town is located at the mouth of Nanliujiang River and is rich in hairy crab resources and food sources; Suxixi built the crab pond beside the tributaries of the Nanliujiang tributary, with convenient water sources, fresh water, and muddy bottom. . The entrance and exit of the crab pond is located in the relative position, and a metal mesh fence is set to play the role of preventing escape and predation. Crab escape is crucial. Hairy crabs are good at climbing and it is easy to escape. Su Xixi builds a 1m high escape wall along the perimeter of a single brick in the crab pond. It is inlaid with a 20 centimeter wide glass near the wall of the wall, and the interior wall is cemented. Cement joints, so that the wall is durable, anti-escape effect is good. The pond is rectangular and east-west direction. The middle of the pond is made in a furrow style. The row is ridged every 1.5 meters and the ridge height is 1.1 meters. The depth of the pond is between 1.o-1.5 meters.
Second, do a good job clear pond disinfection work before the crabs stocking, drain pool water, clear the pool of sludge debris, exposure a few days, put the crabs in the first two weeks, the pond with 75-100 kg of lime thoroughly clear the pond, kill Various harmful aquatic plants, parasites, and pathogenic bacteria in crab ponds can be used for normal growth after stocking.
Third, planting aquatic plants with more than 1/3 of the area of ​​crab pond cultivation of tendon grass or water peanuts, water hyacinth, duckweed, chicken feet grass, etc., to provide a hidden habitat for hairy crabs, shading in the hot season, and effectively improve Water quality and provision of vegetal foods to create suitable growth activities for hairy crabs are conducive to the normal growth of oyster shells in hairy crabs and improve survival.
Fourth, the selection of crab seedlings Hepu hair crab seedlings are mainly natural seedlings, distributed in the area along the Nanliu River; Suxi Xi mainly buy crab seedlings, when selecting crabs should pay attention to choose a healthy hair, appendages intact, the size of the hairy crab , do not stock up on limb injuries and sick crabs. After cultivation, local crabs are rich in resources, have strong adaptability, and have a high rate of discharge. It is better to raise local crabs. Crab seedling density 2500-3500/mu, specifications 60-100 / kg. After 3-4 months of breeding, the size of 65-90 grams/piece can be sold.
V. Water Quality Management In the process of hairy crab breeding, generally require sufficient water sources, fresh water quality, convenient drainage and drainage, adequate dissolved oxygen, and great transparency. As individual crabs become larger, food intake and excretion increase, oxygen consumption increases, water quality deteriorates easily, and hairy crabs also climb out of the water to escape. Therefore, new water should be replaced in time, and frequent exchanges should be made during the summer heat period. New water, keep deeper than 1 meter.
6. Everyday feeding of hairy crabs is an omnivorous animal and eats animal food. Su Xixi feeds mainly animal feeds, because it is located in the Nanliujiang River, and is rich in animal foods such as sweet snails, small junk fish, oysters, and clams, and is supplemented with plant foods such as bean cakes, rice bran, and bran. Feeding 1 or 2 times, the amount of daily feeding accounts for about 10% of the body weight of the crab. Regularly feed the chitin in the bait, or splash the lime in the whole pond to promote the growth of the crab.
7. Disease prevention and treatment Every 10 months, splash 10~20mg/L lime water or 5~lOmg/L formalin disinfection water, add terramycin and other drugs to the bait to improve the resistance of crab and prevent crab disease.
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