Auburn albino has significant germplasm advantages: fast growth rate, male rate as high as 98%, strong cold resistance, lower survival limit of 8°C, good meat quality, and high meat yield of about 40%. Two kinds of cultivation methods and techniques for fry breeding of Auburn albino from the spit flower to the pond before this time are summarized as follows for reference by the general households.
First, the cement pool cultivation method
1, the construction of the cement pool. The water source is convenient, there is a certain place where the water level difference is high, and a red brick cement structure cultivation pond is constructed with 74 rectangles and an area of ​​about 30 square meters. Water inlets and drain outlets are reserved to facilitate the production operation.
2, install aerobic facilities. In places where the water source is good and there is a certain water level difference, a plastic pipe with 6-8cm diameter and many small holes can be installed on the side of the pool. The plastic pipe is blocked at one end and the other end is connected to the water inlet. The pressure is used to make the water flow Through the small holes in the plastic pipe spray pool surface, to achieve the effect of oxygen. Gas aeration blowers can also be used for direct mechanical aeration. The same oxygenation effect is achieved.
3, clearing the pool, disinfection. Before putting the fry, the new cement pool should be soaked with lime water for a period of time before putting the seedlings. After the old pool is cleaned, use quicklime 5kg/pump to dip and disinfect the whole pool. When the sunlight is good, it will be exposed for 1-2 days. Better results.
4, water back to the pool. After being completely cleared by clearing the pond, the water is discharged into the pool. When entering the water, the water inlet shall be sealed with a mesh of 40 mesh to prevent water from entering the pool. This will affect the quality of the fry, and the first water depth is 50-60cm.
5, put the seedlings. After 2-3 days of water in the cement pool, after the water was tested and the fish was alive for 24 hours, there was no death phenomenon. After 30,000 fish ponds were put into the spit flower Anopila ficus. Practice has shown that the density of Onychomys nigrum seedlings in the culturing stage is higher, the survival rate of the fry is relatively high, the density is too low, and the survival rate is sometimes not high enough.
6, daily management. After the fish fry is put into the pool, the feed must be fed regularly for intensive cultivation every day. The feed is usually given at 9 o'clock in the morning, 12 o'clock in the afternoon, and three times in the afternoon at 4-5 o'clock. The principle of feeding and feeding is that the fry from the spit flower to the 3cm size stage, each day, the “San Gaoao Xiong†Brand No. 1 feed 500g per 10,000 AoNilia fry is fed. After being raised to 3cm, the tilapia seedlings were fed at a rate of 1000g/ten thousand tilapia per day. During the fry cultivation, the aerator or the sprinkling water should be used to start the aerator in time in the morning or at noon depending on the floating head of the fry. oxygen. To achieve oxygenation and stimulate the appetite of fry.
Second, the pond cultivation method
1. Pond conditions. The pond area is 2-3 mu and the water depth is about 1.5m. The pond foundation is firm and the bottom of the pond is flat. The bottom of the pond is suitable for 10-20cm mud.
2, clear pond disinfection. There are many disinfection methods for clear ponds, which can be sterilized with water or dry ponds. The best method is to remove the weeds and miscellaneous fish in the fry cultivation pool, drain the pool water, and put in 50kg/mu quicklime to disinfect the spring. Use the spring water eye pond to use 50kg/mu poison pond to kill the wild fish. After 2-3 days of exposure, put in new water.
3, water back to the pond. After the disinfection of the clear pond is completed, put new water into the pond. When entering the water, use 40 mesh cloth to filter the water into the pond. After the first time the depth of the water is controlled at 80cm, the water is stopped. After the seedlings are released for one week, new water is injected. 20cm, keep the pond to a depth of about 1m to cultivate fry.
4, fattening water quality. On the stage of seedlings of Aloonia arundinacea, the floating plants and animals are used as bait, and the fertilizer pond is used to put seedlings, so that the fish seedlings are rich in natural food after the pond. Therefore, after the pond enters the water, 3-5 days before the fish is put under the pond, 200 kg of animal manure or 300-500 kg of green manure is applied per acre. It is appropriate to dip in the periphery of a pond and to fertilize pond water quality, and to control the transparency in 30-40cm.
5, put seedling cultivation. In the ponds that are ready for seedlings, after the water is tested to determine whether the fry can grow safely, the Euonymus niloticus should be fed at the rate of 100,000 per mu. The fry bag floats on the surface of the pond for about 30 minutes. After the water temperature in the fry bag is the same as the pond water temperature, the seedlings are put into the pond in the upwind position.
6, feeding management. The pond cultivates Auburn aureus tilapia, which can be used to fertilize water by constantly applying organic manure, and to cultivate planktonic plants for bait. It is also possible to regularly and quantitatively feed artificial compound feeds. Before the spit flower reached the 3cm specification, the “Saoaoxiong†Brand No. 1 fry feed was launched, and the amount was 500g/ten thousand fish fry per day, and the amount of investment was appropriately increased from the third day. When the fish is raised to 3cm, it will be converted into the "Gaoyuan" brand 110 fry prepared by New Hope Group. The amount of the fish is put into 1000g/ten thousand fry every day. After being cultivated for 25-30 days, the fry can be up to 4-6cm in size.
7, fish disease prevention. Auburn aureus tilapia is relatively prone to fish disease in the seedling stage relative to the adult fish stage. If the weather is bad, the water temperature is low, and the operation is not easy to produce aquatic mold disease. The control method is to apply 2-3 ppm of hydromyxin to the whole pool. Or fish and shrimp. Sometimes it also suffers from trichodinosis. The prevention and control method is to use appropriate amounts of chlorfenapyr or trichlorfon. The above methods can treat tilapia disease.
III. Conclusion Pond cultivation requires low technical requirements, low input costs and easy operation. It is suitable for the standard cultivation of fish before the farmers raise the fish. The cement pool cultivation method has high technical requirements, high investment cost, large production volume and short cultivation time. This method is suitable for specialized large-scale production of fish farms.
First, the cement pool cultivation method
1, the construction of the cement pool. The water source is convenient, there is a certain place where the water level difference is high, and a red brick cement structure cultivation pond is constructed with 74 rectangles and an area of ​​about 30 square meters. Water inlets and drain outlets are reserved to facilitate the production operation.
2, install aerobic facilities. In places where the water source is good and there is a certain water level difference, a plastic pipe with 6-8cm diameter and many small holes can be installed on the side of the pool. The plastic pipe is blocked at one end and the other end is connected to the water inlet. The pressure is used to make the water flow Through the small holes in the plastic pipe spray pool surface, to achieve the effect of oxygen. Gas aeration blowers can also be used for direct mechanical aeration. The same oxygenation effect is achieved.
3, clearing the pool, disinfection. Before putting the fry, the new cement pool should be soaked with lime water for a period of time before putting the seedlings. After the old pool is cleaned, use quicklime 5kg/pump to dip and disinfect the whole pool. When the sunlight is good, it will be exposed for 1-2 days. Better results.
4, water back to the pool. After being completely cleared by clearing the pond, the water is discharged into the pool. When entering the water, the water inlet shall be sealed with a mesh of 40 mesh to prevent water from entering the pool. This will affect the quality of the fry, and the first water depth is 50-60cm.
5, put the seedlings. After 2-3 days of water in the cement pool, after the water was tested and the fish was alive for 24 hours, there was no death phenomenon. After 30,000 fish ponds were put into the spit flower Anopila ficus. Practice has shown that the density of Onychomys nigrum seedlings in the culturing stage is higher, the survival rate of the fry is relatively high, the density is too low, and the survival rate is sometimes not high enough.
6, daily management. After the fish fry is put into the pool, the feed must be fed regularly for intensive cultivation every day. The feed is usually given at 9 o'clock in the morning, 12 o'clock in the afternoon, and three times in the afternoon at 4-5 o'clock. The principle of feeding and feeding is that the fry from the spit flower to the 3cm size stage, each day, the “San Gaoao Xiong†Brand No. 1 feed 500g per 10,000 AoNilia fry is fed. After being raised to 3cm, the tilapia seedlings were fed at a rate of 1000g/ten thousand tilapia per day. During the fry cultivation, the aerator or the sprinkling water should be used to start the aerator in time in the morning or at noon depending on the floating head of the fry. oxygen. To achieve oxygenation and stimulate the appetite of fry.
Second, the pond cultivation method
1. Pond conditions. The pond area is 2-3 mu and the water depth is about 1.5m. The pond foundation is firm and the bottom of the pond is flat. The bottom of the pond is suitable for 10-20cm mud.
2, clear pond disinfection. There are many disinfection methods for clear ponds, which can be sterilized with water or dry ponds. The best method is to remove the weeds and miscellaneous fish in the fry cultivation pool, drain the pool water, and put in 50kg/mu quicklime to disinfect the spring. Use the spring water eye pond to use 50kg/mu poison pond to kill the wild fish. After 2-3 days of exposure, put in new water.
3, water back to the pond. After the disinfection of the clear pond is completed, put new water into the pond. When entering the water, use 40 mesh cloth to filter the water into the pond. After the first time the depth of the water is controlled at 80cm, the water is stopped. After the seedlings are released for one week, new water is injected. 20cm, keep the pond to a depth of about 1m to cultivate fry.
4, fattening water quality. On the stage of seedlings of Aloonia arundinacea, the floating plants and animals are used as bait, and the fertilizer pond is used to put seedlings, so that the fish seedlings are rich in natural food after the pond. Therefore, after the pond enters the water, 3-5 days before the fish is put under the pond, 200 kg of animal manure or 300-500 kg of green manure is applied per acre. It is appropriate to dip in the periphery of a pond and to fertilize pond water quality, and to control the transparency in 30-40cm.
5, put seedling cultivation. In the ponds that are ready for seedlings, after the water is tested to determine whether the fry can grow safely, the Euonymus niloticus should be fed at the rate of 100,000 per mu. The fry bag floats on the surface of the pond for about 30 minutes. After the water temperature in the fry bag is the same as the pond water temperature, the seedlings are put into the pond in the upwind position.
6, feeding management. The pond cultivates Auburn aureus tilapia, which can be used to fertilize water by constantly applying organic manure, and to cultivate planktonic plants for bait. It is also possible to regularly and quantitatively feed artificial compound feeds. Before the spit flower reached the 3cm specification, the “Saoaoxiong†Brand No. 1 fry feed was launched, and the amount was 500g/ten thousand fish fry per day, and the amount of investment was appropriately increased from the third day. When the fish is raised to 3cm, it will be converted into the "Gaoyuan" brand 110 fry prepared by New Hope Group. The amount of the fish is put into 1000g/ten thousand fry every day. After being cultivated for 25-30 days, the fry can be up to 4-6cm in size.
7, fish disease prevention. Auburn aureus tilapia is relatively prone to fish disease in the seedling stage relative to the adult fish stage. If the weather is bad, the water temperature is low, and the operation is not easy to produce aquatic mold disease. The control method is to apply 2-3 ppm of hydromyxin to the whole pool. Or fish and shrimp. Sometimes it also suffers from trichodinosis. The prevention and control method is to use appropriate amounts of chlorfenapyr or trichlorfon. The above methods can treat tilapia disease.
III. Conclusion Pond cultivation requires low technical requirements, low input costs and easy operation. It is suitable for the standard cultivation of fish before the farmers raise the fish. The cement pool cultivation method has high technical requirements, high investment cost, large production volume and short cultivation time. This method is suitable for specialized large-scale production of fish farms.
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