Polyculture Technology of River Fish and Chinese Shrimp Pond
2018-06-11 16:01:11
River fish is a valuable fish, highly toxic, high market prices, sales in short supply. At present, it is an ideal breeding new species.
First, habits
River fish is a carnivorous fish that inhabits the sandy bottom of the coast. It feeds mainly on shellfish, crustaceans, small fish, shrimps, and cephalopods. It is suitable for water temperatures of 15°C to 20°C, and 6°C water temperature allows wintering. Degrees 25 ‰ to 32 ‰, dissolved oxygen requirements more than 4 mg / liter.
Second, aquaculture and management
1. The choice of pond: When selecting pond culture, the pond must be selected according to the respective living habits of river fish and Chinese shrimp, and the superiority of river fish and Chinese shrimp should be available, with good bottom quality, good water quality, no pollution, and good It is advisable to manage a small pond with an area of ​​10 mu to 20 mu and an average water level of 2 meters above the pond.
2. Qingchi Disinfection: Firstly, the sludge at the bottom of the pool is completely removed, and then bleaching powder, bleaching fines, quicklime, etc. (select one) are used to disinfect and disinfect according to the requirements of the breeding technology.
3. Strict control of seedling density: fish and shrimp polyculture should be a good place to put seedlings off, strictly control the density of seedlings, enlarge seedlings, strong seedlings, put high-quality sterile seedlings. River fish in May acre 3 cm to 4 cm fry 100 to 120 tails, China shrimp in April at the end of the acres of temporarily raised shrimp more than 3 cm 7000.
4. Strict control of feed quality: The main purpose of fish and shrimp polyculture is to suppress the spread of shrimp virus disease. The quality of good bait is an important material guarantee to improve the disease resistance of shrimp itself, and it is also important to increase fish and shrimp production and increase economic efficiency. Protection. The quality of food and nutrition can improve the utilization of bait for shrimp and promote rapid growth. Feeding method of bait: stick to live small fish, shrimp and bait, and high-quality synthetic bait, feeding at regular time.
5. Day-to-day management: Adhere to the patrol once a day in the morning and evening, check the water quality, dissolved oxygen, fish and shrimp eating and activities, and inject water once every 7 days to 10 days. During the hot season, increase the water injection volume, keep the pool water clear and the pool water level, and maintain a good water environment.
Third, the summary
1. The polyculture between river fish and Chinese shrimp is mainly to make full use of existing shrimp ponds and to suppress the occurrence of shrimp diseases. Because the body fluids secreted by river fish have a certain inhibitory effect on shrimp viruses, river fish can also catch diseased shrimp with weaker activity capacity, cut off pathogenic disease channels, purify the water quality in the pool, and create a good water for the rapid growth of shrimp. Environment, to achieve high yield and efficient dual harvest fish and shrimp.
2. The use of small ponds, the use of a comprehensive mix of breeding, using a new scientific and technological methods to use bio-based bait for polyculture, and the use of closed or semi-closed breeding mode to strengthen the management of the cultivation.
3. In the first year of the year when the river fish are transplanted and transplanted, their weight reaches more than half a catty. The water temperature dropped below 8°C and was transferred to the sea fish factory breeding center for wintering. In the spring of the next year, when the water temperature is appropriate, it will be transplanted into the shrimp pond and cultivated. When harvested, a body weight of 1.2 to 1.5 pounds, the survival rate of 80%. The average weight of Chinese shrimp was 11.5 cm when it was harvested, and the survival rate was 75%. The aquaculture benefits are considerable.
First, habits
River fish is a carnivorous fish that inhabits the sandy bottom of the coast. It feeds mainly on shellfish, crustaceans, small fish, shrimps, and cephalopods. It is suitable for water temperatures of 15°C to 20°C, and 6°C water temperature allows wintering. Degrees 25 ‰ to 32 ‰, dissolved oxygen requirements more than 4 mg / liter.
Second, aquaculture and management
1. The choice of pond: When selecting pond culture, the pond must be selected according to the respective living habits of river fish and Chinese shrimp, and the superiority of river fish and Chinese shrimp should be available, with good bottom quality, good water quality, no pollution, and good It is advisable to manage a small pond with an area of ​​10 mu to 20 mu and an average water level of 2 meters above the pond.
2. Qingchi Disinfection: Firstly, the sludge at the bottom of the pool is completely removed, and then bleaching powder, bleaching fines, quicklime, etc. (select one) are used to disinfect and disinfect according to the requirements of the breeding technology.
3. Strict control of seedling density: fish and shrimp polyculture should be a good place to put seedlings off, strictly control the density of seedlings, enlarge seedlings, strong seedlings, put high-quality sterile seedlings. River fish in May acre 3 cm to 4 cm fry 100 to 120 tails, China shrimp in April at the end of the acres of temporarily raised shrimp more than 3 cm 7000.
4. Strict control of feed quality: The main purpose of fish and shrimp polyculture is to suppress the spread of shrimp virus disease. The quality of good bait is an important material guarantee to improve the disease resistance of shrimp itself, and it is also important to increase fish and shrimp production and increase economic efficiency. Protection. The quality of food and nutrition can improve the utilization of bait for shrimp and promote rapid growth. Feeding method of bait: stick to live small fish, shrimp and bait, and high-quality synthetic bait, feeding at regular time.
5. Day-to-day management: Adhere to the patrol once a day in the morning and evening, check the water quality, dissolved oxygen, fish and shrimp eating and activities, and inject water once every 7 days to 10 days. During the hot season, increase the water injection volume, keep the pool water clear and the pool water level, and maintain a good water environment.
Third, the summary
1. The polyculture between river fish and Chinese shrimp is mainly to make full use of existing shrimp ponds and to suppress the occurrence of shrimp diseases. Because the body fluids secreted by river fish have a certain inhibitory effect on shrimp viruses, river fish can also catch diseased shrimp with weaker activity capacity, cut off pathogenic disease channels, purify the water quality in the pool, and create a good water for the rapid growth of shrimp. Environment, to achieve high yield and efficient dual harvest fish and shrimp.
2. The use of small ponds, the use of a comprehensive mix of breeding, using a new scientific and technological methods to use bio-based bait for polyculture, and the use of closed or semi-closed breeding mode to strengthen the management of the cultivation.
3. In the first year of the year when the river fish are transplanted and transplanted, their weight reaches more than half a catty. The water temperature dropped below 8°C and was transferred to the sea fish factory breeding center for wintering. In the spring of the next year, when the water temperature is appropriate, it will be transplanted into the shrimp pond and cultivated. When harvested, a body weight of 1.2 to 1.5 pounds, the survival rate of 80%. The average weight of Chinese shrimp was 11.5 cm when it was harvested, and the survival rate was 75%. The aquaculture benefits are considerable.
Weifang Wangyuan Food Co., Ltd , http://www.wangyuanfoods.com