The autumn temperature and water temperature are more appropriate. The following six levels should be taken into account during the raising of autumn fry.
First, completely clear pond
Clear frogs, snakes, fish, shrimp, insects, bacteria and other predators in the pond. The method is: pumping pool water, with an amount of 60 kg to 80 kg of lime per acre or 4 kg to 5 kg of bleached powder dissolved in water and then splashed in Quanchipia.
Second, scientific fertilization
Moderate and appropriate fertilization can provide abundant palatability for autumn seedlings. General fish fry 6 days before the next pond into 60 cm of fresh water, 2 days after the application of organic fertilizer per acre 300 kg to 400 kg, after moderate fertilizer, so that the transparency of the pond water remained at 30 cm to 35 cm.
Third, reasonable and thin
Dilution can provide a good ecological environment for fry and accelerate its growth. It is generally possible to plant seedlings directly at one time, with 12,000 to 15,000 tails per acre. According to the situation of autumn seedlings, the ratio of each species of fish is appropriately controlled. Generally, 0,700 to 8,000 larvae of carp, 0.20 to 0.3 million squid, and 0.3 to 44,000 turfgrass can be placed per mu.
Fourth, scientific feeding
From the nursery to the fish species, the food habits change greatly, and the diet must be suitable. From the nursery to the 15th day of the pond, at the same time, at the same time, it should also spill 1.5 to 3 kilograms of soybean milk per mu of Quanchi, 2 times a day. After 5 days, feeds such as cake flour and flour were re-fed, 2 times a day, 2 kg to 4 kg per mu. And began to feed green feed, generally more than 3 cm long fry can be fed duckweed, 10 kg per day to 20 kg per mu; more than 7 cm, each feeding 20 kg to 40 kg. When the length of fry reaches more than 8 cm, it can be fed with aquatic plants and dry grass. In the absence of Peacock fishing can also be used instead of beech pulp. This method can be used to cultivate large-scale fish species.
Fifth, regular water injection
The general fry pond begins to add water three or four days later. Add water once every four or five days. Add water 10 centimeters to 20 centimeters each time. After 20 days, add water 10 centimeters every 7 days to 10 days. When adding water, precautions should be taken to prevent invasion by enemies.
Weeds and weeds in the pool must be removed regularly. The baits and foodstuffs should be periodically disinfected with quick lime or bleached water after every ten days.
First, completely clear pond
Clear frogs, snakes, fish, shrimp, insects, bacteria and other predators in the pond. The method is: pumping pool water, with an amount of 60 kg to 80 kg of lime per acre or 4 kg to 5 kg of bleached powder dissolved in water and then splashed in Quanchipia.
Second, scientific fertilization
Moderate and appropriate fertilization can provide abundant palatability for autumn seedlings. General fish fry 6 days before the next pond into 60 cm of fresh water, 2 days after the application of organic fertilizer per acre 300 kg to 400 kg, after moderate fertilizer, so that the transparency of the pond water remained at 30 cm to 35 cm.
Third, reasonable and thin
Dilution can provide a good ecological environment for fry and accelerate its growth. It is generally possible to plant seedlings directly at one time, with 12,000 to 15,000 tails per acre. According to the situation of autumn seedlings, the ratio of each species of fish is appropriately controlled. Generally, 0,700 to 8,000 larvae of carp, 0.20 to 0.3 million squid, and 0.3 to 44,000 turfgrass can be placed per mu.
Fourth, scientific feeding
From the nursery to the fish species, the food habits change greatly, and the diet must be suitable. From the nursery to the 15th day of the pond, at the same time, at the same time, it should also spill 1.5 to 3 kilograms of soybean milk per mu of Quanchi, 2 times a day. After 5 days, feeds such as cake flour and flour were re-fed, 2 times a day, 2 kg to 4 kg per mu. And began to feed green feed, generally more than 3 cm long fry can be fed duckweed, 10 kg per day to 20 kg per mu; more than 7 cm, each feeding 20 kg to 40 kg. When the length of fry reaches more than 8 cm, it can be fed with aquatic plants and dry grass. In the absence of Peacock fishing can also be used instead of beech pulp. This method can be used to cultivate large-scale fish species.
Fifth, regular water injection
The general fry pond begins to add water three or four days later. Add water once every four or five days. Add water 10 centimeters to 20 centimeters each time. After 20 days, add water 10 centimeters every 7 days to 10 days. When adding water, precautions should be taken to prevent invasion by enemies.
Weeds and weeds in the pool must be removed regularly. The baits and foodstuffs should be periodically disinfected with quick lime or bleached water after every ten days.
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