1. Tongkou Clearing and Disinfection Blackfish Cultivating Flowers and White Pelicans The area of ​​the mouth of Tongbai is 6~8 mu. The area is too small and the water quality is easily deteriorated. In summer, the main and high-temperature festivals are easy to induce disease, and the area is too large. High, inconvenient to manage. The fish ponds are 2 meters deep, and they leave no or less silt on the bottom of the pond. Weeds should be cleared of weeds in the Western Zhou Dynasty, and ponds in ponds should be reinforced to prevent seepage and water leakage. Thoroughly clear the pond with lime during the 20 days before stocking, and use 100-150 kg per mu. After 10 days, bleaching powder (30% of available chlorine content) is used for clearing the pond once again. The dosage per acre is 5-7 kg, which can be entered after one week. Water fish species.
Second, fish species launch
1, black fish species blackfish species stocking time should be in early October, into the pond after the fish can be restored to constitution, and improve the survival rate of overwintering, fish can be fed at the back to restore constitution, and improve the survival rate of overwintering, fish can be selected every other year In March to April stocking. Before the next pool must be strictly disinfected and prevented, generally 3% to 5% salt water soaked for 10 to 15 minutes after the stocking into the pool. The stocking specifications are best to be locally produced fish species in order to avoid long-distance transport causing fish injuries, affecting the survival rate, and avoiding the introduction of pathogenic bacteria from the outside.
2. The time spent on white bream fish species and other species of flowers and white bream species can be put into the pool before and after the Spring Festival, and it is best to put them into the pool before the Spring Festival. Generally, the main black-fish pond has flowers and 200 to 250 tails per acre, and , Squid 60 ~ 80 tail, flowers, white pheasant specifications in the 6 ~ 8 / kg, bream, bream specifications in 10 ~ 15 / kg, the fish before the pool under the strict disinfection after stocking into the pool.
Third, feeding and management
1, feeding should adhere to the "four set." The size of a pond can be set to 1 or 2 food places, and the black fish can be concentrated around the food field. This can create a situation of grab food, increase food intake, and reduce food waste. The type of feed is mainly small freshwater miscellaneous fish, supplemented by small marine miscellaneous fish, and the feeding amount of bait fish in the high season is 6%~8% of the fish weight. Wash the fish before feeding and feed the frozen sea fish. After dissolving, use a 3% to 5% solution of chyme to sterilize for 20 minutes. The feeding method is effective for gradual feeding, and most of the fish eat. After saturating, you can stop feeding. Flowers, white fleas, and squid are no longer needed for feeding.
2. The patrol pond mainly observes the fish’s feeding, activities, incidence trends, environmental changes, etc. twice a day, morning and evening. It regularly removes the residual baits and removes the excess aquatic plants in the pond to prevent fish from being caught. Aerator.
3, water quality management hot season. Black fish have large food intake, large metabolism, water quality is easy to produce black and odor, resulting in water body malignancy, is not conducive to the growth and development of blackfish, so the high temperature season generally 3 days a small change, 7 days a big change, where the conditions can be micro Water aquaculture, aquaculture water level to maintain about 2 meters, other time to see the change in water quality situation r to change the water, generally change the water every week 1/3, 10 to 15 days big change once, boring to watch the hot weather to pay special attention to promptly change the water or Add new water.
Second, fish species launch
1, black fish species blackfish species stocking time should be in early October, into the pond after the fish can be restored to constitution, and improve the survival rate of overwintering, fish can be fed at the back to restore constitution, and improve the survival rate of overwintering, fish can be selected every other year In March to April stocking. Before the next pool must be strictly disinfected and prevented, generally 3% to 5% salt water soaked for 10 to 15 minutes after the stocking into the pool. The stocking specifications are best to be locally produced fish species in order to avoid long-distance transport causing fish injuries, affecting the survival rate, and avoiding the introduction of pathogenic bacteria from the outside.
2. The time spent on white bream fish species and other species of flowers and white bream species can be put into the pool before and after the Spring Festival, and it is best to put them into the pool before the Spring Festival. Generally, the main black-fish pond has flowers and 200 to 250 tails per acre, and , Squid 60 ~ 80 tail, flowers, white pheasant specifications in the 6 ~ 8 / kg, bream, bream specifications in 10 ~ 15 / kg, the fish before the pool under the strict disinfection after stocking into the pool.
Third, feeding and management
1, feeding should adhere to the "four set." The size of a pond can be set to 1 or 2 food places, and the black fish can be concentrated around the food field. This can create a situation of grab food, increase food intake, and reduce food waste. The type of feed is mainly small freshwater miscellaneous fish, supplemented by small marine miscellaneous fish, and the feeding amount of bait fish in the high season is 6%~8% of the fish weight. Wash the fish before feeding and feed the frozen sea fish. After dissolving, use a 3% to 5% solution of chyme to sterilize for 20 minutes. The feeding method is effective for gradual feeding, and most of the fish eat. After saturating, you can stop feeding. Flowers, white fleas, and squid are no longer needed for feeding.
2. The patrol pond mainly observes the fish’s feeding, activities, incidence trends, environmental changes, etc. twice a day, morning and evening. It regularly removes the residual baits and removes the excess aquatic plants in the pond to prevent fish from being caught. Aerator.
3, water quality management hot season. Black fish have large food intake, large metabolism, water quality is easy to produce black and odor, resulting in water body malignancy, is not conducive to the growth and development of blackfish, so the high temperature season generally 3 days a small change, 7 days a big change, where the conditions can be micro Water aquaculture, aquaculture water level to maintain about 2 meters, other time to see the change in water quality situation r to change the water, generally change the water every week 1/3, 10 to 15 days big change once, boring to watch the hot weather to pay special attention to promptly change the water or Add new water.
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