The use of ordinary polyethylene cages for breeding squid can make up for the drawbacks of pond-cultured squid sloppy water. The economic benefit is 5 to 10 times that of grass carp and carp. The main technical measures are as follows:
First, set up cages, grading aquaculture in the choice of fresh water, dissolved oxygen, pH suitable for spacious water areas (such as lakes, reservoirs and other bodies of water) set up cages. The size of the mesh and the surface area of ​​the cage were determined according to the different stages of growth of the catfish. Fry cage net mesh 0.8 cm to 1 cm, an area of ​​8 square meters; Fish cage net mesh 1.5 cm to 2 cm, an area of ​​12 square meters to 14 square meters; into a fish cage mesh mesh 3 cm, length and height are 5 meters, 5 meters, 2.5 meters. Enclosed cages are generally used and the water depth is 2 meters. Carp will live on its own during the larvae period. Therefore, timely grading and cass culture is the key to improving the survival rate of squid.
Second, the scientific preparation, "four set" feeding squid night feeding habits, in particular, pay attention to increase the amount of feeding at night from 11 to 12 o'clock. When the fish is 10 cm to 16 cm in length, the amount of bait is 6% to 10% of the total species, and when the body length is 16 cm or more, the amount of bait is 3% to 5%. Feeding should be timed, positioned, qualitative and quantitative.
Third, to strengthen management, prevention and treatment of fish disease as soon as possible put the seedlings into the box, transporting fry can add 1 gram of special erythromycin for aquatic products. After entering the box, check the cage regularly to prevent theft and burglary. The box can contain several red beards to observe if the cage is damaged. Periodically remove dirt to ensure the smooth exchange of water inside and outside the cage. To strengthen the prevention and treatment of fish diseases, fish body length 16 centimeters before insisted every 5 days to 10 days with 10ppm lime water spilled cage 1 to 2 times; body length 16cm per month with dibromohydantoin water solution 2 times ~ 3 Times. Within a few days after the seedlings have been placed in the box, 0.5% to 1% of berberine hydrochloride must be added to the feed every day. After that, once every 10 days to 20 days, the fish should be used once. After 16cm, the fish body should be changed every other month. Medication 1 times. (Xie Gang)
First, set up cages, grading aquaculture in the choice of fresh water, dissolved oxygen, pH suitable for spacious water areas (such as lakes, reservoirs and other bodies of water) set up cages. The size of the mesh and the surface area of ​​the cage were determined according to the different stages of growth of the catfish. Fry cage net mesh 0.8 cm to 1 cm, an area of ​​8 square meters; Fish cage net mesh 1.5 cm to 2 cm, an area of ​​12 square meters to 14 square meters; into a fish cage mesh mesh 3 cm, length and height are 5 meters, 5 meters, 2.5 meters. Enclosed cages are generally used and the water depth is 2 meters. Carp will live on its own during the larvae period. Therefore, timely grading and cass culture is the key to improving the survival rate of squid.
Second, the scientific preparation, "four set" feeding squid night feeding habits, in particular, pay attention to increase the amount of feeding at night from 11 to 12 o'clock. When the fish is 10 cm to 16 cm in length, the amount of bait is 6% to 10% of the total species, and when the body length is 16 cm or more, the amount of bait is 3% to 5%. Feeding should be timed, positioned, qualitative and quantitative.
Third, to strengthen management, prevention and treatment of fish disease as soon as possible put the seedlings into the box, transporting fry can add 1 gram of special erythromycin for aquatic products. After entering the box, check the cage regularly to prevent theft and burglary. The box can contain several red beards to observe if the cage is damaged. Periodically remove dirt to ensure the smooth exchange of water inside and outside the cage. To strengthen the prevention and treatment of fish diseases, fish body length 16 centimeters before insisted every 5 days to 10 days with 10ppm lime water spilled cage 1 to 2 times; body length 16cm per month with dibromohydantoin water solution 2 times ~ 3 Times. Within a few days after the seedlings have been placed in the box, 0.5% to 1% of berberine hydrochloride must be added to the feed every day. After that, once every 10 days to 20 days, the fish should be used once. After 16cm, the fish body should be changed every other month. Medication 1 times. (Xie Gang)
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