In Tanggu District, Tianjin, the water surface area for healthy shrimp culture has reached 500 mu, and some of them have also been farmed with big bream, achieving very substantial economic and social benefits. At the same time, it also promotes the healthy breeding of Chinese shrimp and South American white shrimp. A demonstration was given. Now we introduce some experiences of healthy shrimp farming in Tanggu District of Tianjin to everyone for your reference.
I. Breeding characteristics Small pond, high water level, closed type, high dissolved oxygen, high density.
Second, culture conditions
1. Pond area cultured area is generally 2 mu - 5 mu, pond water depth 3m - 3.5m.
2. Water source conditions require high-salinity seawater in salt reservoirs, with a salinity generally above 50 ,. At the same time, fresh water machine wells are required to ensure fresh water supply.
3. The mechanical conditions are generally equipped with 2 sets - 3 aerators per pond. Conditional breeding ponds can be equipped with generators, pumps and other equipment.
Third, breeding technology points
1. Pond disinfection is generally used after the autumn dredging, spring clearing pond disinfection method, clear pond drugs are generally bleach, quicklime, disinfection requirements completely.
2. Fertilizer cultivation of biological food pond dredging, disinfection water 70cm - 80cm, apply urea 2g / cubic meter - 4g / cubic meter, so that the water transparency to maintain about 30cm.
3. The shrimp stocks are stocked in mid-to-late April, and Chinese prawn larvae with a size of 1.0 cm or more are placed in the range of 100,000 to 200,000 tails per mu. After the intermediate stocking is implemented, they will be restocked in mid-late July. White prawn larvae are 50,000 to 80,000 tails per mu, and the supplemented seedlings are larvae with a body length of 1.0 cm or longer.
4. The water quality management will regularly add new water to maintain the vitality of the pool water; use oxygen aerators to increase dissolved oxygen in the pool water, improve water quality and environment; use chemical drugs and biological agents to improve water quality; regularly spray zeolite powder to purify water, stabilize water environment; Role, purposely adjust water quality.
5. Feeding and feeding of bait During the feeding and management of aquaculture, while adhering to the principle of “Four Sets,†it is necessary to make small amount of times to prevent water pollution. In the initial stage of breeding, shrimps are mainly fed by breeding biological feed, and fed mainly by fresh Artemia, once a day, 1-2 thousand shrimps are fed with 1.2kg--2.4kg each; 5 times - 6 times, including live bait 2 times, pellet feed 3 times - 4 times, fresh live bait required fresh, non-deterioration, no pollution, away from the affected area, qualified fresh Artemia, pelleted feed For full-priced artificial compound feed, 0.3kg--0.4kg per 10000 shrimps are fed.
6. Shrimp I Prevention and Control 1 Brine and fresh water blending into brackish water For the closed culture of shrimp culture, we started with the prevention of pathogens invading and cutting off pathogens and established a complete disease prevention and control system that can effectively reduce the occurrence of shrimp disease. 2 In the daily management, we must insist on regular disinfection of water quality, insist on regular disinfection of fresh live bait, culture tools and pond banks, etc., and supplement with bait feeding. 3 While using chemical and biological medicines for the prevention and control of shrimp diseases, it is necessary to pay attention to the improvement of the pool water environment, especially to strictly control the degradation of harmful substances, the increase of dissolved oxygen, the composition of plankton, the adjustment of pH value, and so on. The shrimp's own immunity.
Yuan Jinhong Shen Xiaohong Cao Shuxiang Fishery Technology Promotion Station, Tanggu District, Tianjin 300450
I. Breeding characteristics Small pond, high water level, closed type, high dissolved oxygen, high density.
Second, culture conditions
1. Pond area cultured area is generally 2 mu - 5 mu, pond water depth 3m - 3.5m.
2. Water source conditions require high-salinity seawater in salt reservoirs, with a salinity generally above 50 ,. At the same time, fresh water machine wells are required to ensure fresh water supply.
3. The mechanical conditions are generally equipped with 2 sets - 3 aerators per pond. Conditional breeding ponds can be equipped with generators, pumps and other equipment.
Third, breeding technology points
1. Pond disinfection is generally used after the autumn dredging, spring clearing pond disinfection method, clear pond drugs are generally bleach, quicklime, disinfection requirements completely.
2. Fertilizer cultivation of biological food pond dredging, disinfection water 70cm - 80cm, apply urea 2g / cubic meter - 4g / cubic meter, so that the water transparency to maintain about 30cm.
3. The shrimp stocks are stocked in mid-to-late April, and Chinese prawn larvae with a size of 1.0 cm or more are placed in the range of 100,000 to 200,000 tails per mu. After the intermediate stocking is implemented, they will be restocked in mid-late July. White prawn larvae are 50,000 to 80,000 tails per mu, and the supplemented seedlings are larvae with a body length of 1.0 cm or longer.
4. The water quality management will regularly add new water to maintain the vitality of the pool water; use oxygen aerators to increase dissolved oxygen in the pool water, improve water quality and environment; use chemical drugs and biological agents to improve water quality; regularly spray zeolite powder to purify water, stabilize water environment; Role, purposely adjust water quality.
5. Feeding and feeding of bait During the feeding and management of aquaculture, while adhering to the principle of “Four Sets,†it is necessary to make small amount of times to prevent water pollution. In the initial stage of breeding, shrimps are mainly fed by breeding biological feed, and fed mainly by fresh Artemia, once a day, 1-2 thousand shrimps are fed with 1.2kg--2.4kg each; 5 times - 6 times, including live bait 2 times, pellet feed 3 times - 4 times, fresh live bait required fresh, non-deterioration, no pollution, away from the affected area, qualified fresh Artemia, pelleted feed For full-priced artificial compound feed, 0.3kg--0.4kg per 10000 shrimps are fed.
6. Shrimp I Prevention and Control 1 Brine and fresh water blending into brackish water For the closed culture of shrimp culture, we started with the prevention of pathogens invading and cutting off pathogens and established a complete disease prevention and control system that can effectively reduce the occurrence of shrimp disease. 2 In the daily management, we must insist on regular disinfection of water quality, insist on regular disinfection of fresh live bait, culture tools and pond banks, etc., and supplement with bait feeding. 3 While using chemical and biological medicines for the prevention and control of shrimp diseases, it is necessary to pay attention to the improvement of the pool water environment, especially to strictly control the degradation of harmful substances, the increase of dissolved oxygen, the composition of plankton, the adjustment of pH value, and so on. The shrimp's own immunity.
Yuan Jinhong Shen Xiaohong Cao Shuxiang Fishery Technology Promotion Station, Tanggu District, Tianjin 300450
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