First, fertilization off
When the pond water temperature stabilized at 8-10°C in the early spring, fertilizers began to be recovered to cultivate natural food in the water. The amount of fertilization should be determined based on the quality of water, fertilizer, and fertilizer quality. Generally, the amount of manure is 60-90 kilograms, or 100-150 kilograms of livestock manure. If chemical fertilizers are used, the ratio of nitrogen, phosphorus, and potassium is 1:1:0.5. After topdressing, the total amount of water per acre is 3-7 kilograms, and the interval between topdressing is 5-10 days. . Keep the water quality of the pool yellow-brown or yellow-green, with a transparency of about 30 cm.
Second, feeding off
When the water temperature reaches 10°C, fish begin to feed and grow. Feeding in early spring should be based on concentrated feed such as bean cake, bran, and corn flour, which should be fed once a day and regularly at a time. Each feed should be 1.5-3% of fish's body weight. Later, as the water temperature increases, the number of baits is gradually increased, and they are fed twice a day. At the same time, the ponds that raise the grass carp should be fed with the appropriate amount of terrestrial grass. How much should be fed, they should be eaten for 4-6 hours after casting. It's better. The specific amount of feeding should also be based on the water temperature, weather and fish feeding conditions.
Third, the injection of water off
In early spring, due to the low water temperature, the individuals of the fish body are small and their food intake is small. The pool water should not be too deep. As the water temperature rises, the fish body increases and gradually deepens the water level. In early spring, it is best to change the water once, and change it to 1/2 of the whole pool. Every 15 days after the water injection, raise the water level 10-15 centimeters each time, keep the pond water level about 1 meter in March-April, and at the same time prevent the inflow of sewage and enemy pests.
Fourth, prevent disease
The pond should be managed by special personnel. Stick to the patrol ponds in the morning and evening every day. Check the water quality and determine the amount of fertilization and feeding. Timely salvage the bait, keep the pool water clean, and prohibit the feeding of deteriorating feed. Drugs for the prevention of fish disease are regularly carried out. Every 15 days, 1PPm bleach and 0.7 ppm copper sulfate aqueous solution are sprayed alternately. If fish diseases are found, diagnosis and treatment should be promptly conducted.
When the pond water temperature stabilized at 8-10°C in the early spring, fertilizers began to be recovered to cultivate natural food in the water. The amount of fertilization should be determined based on the quality of water, fertilizer, and fertilizer quality. Generally, the amount of manure is 60-90 kilograms, or 100-150 kilograms of livestock manure. If chemical fertilizers are used, the ratio of nitrogen, phosphorus, and potassium is 1:1:0.5. After topdressing, the total amount of water per acre is 3-7 kilograms, and the interval between topdressing is 5-10 days. . Keep the water quality of the pool yellow-brown or yellow-green, with a transparency of about 30 cm.
Second, feeding off
When the water temperature reaches 10°C, fish begin to feed and grow. Feeding in early spring should be based on concentrated feed such as bean cake, bran, and corn flour, which should be fed once a day and regularly at a time. Each feed should be 1.5-3% of fish's body weight. Later, as the water temperature increases, the number of baits is gradually increased, and they are fed twice a day. At the same time, the ponds that raise the grass carp should be fed with the appropriate amount of terrestrial grass. How much should be fed, they should be eaten for 4-6 hours after casting. It's better. The specific amount of feeding should also be based on the water temperature, weather and fish feeding conditions.
Third, the injection of water off
In early spring, due to the low water temperature, the individuals of the fish body are small and their food intake is small. The pool water should not be too deep. As the water temperature rises, the fish body increases and gradually deepens the water level. In early spring, it is best to change the water once, and change it to 1/2 of the whole pool. Every 15 days after the water injection, raise the water level 10-15 centimeters each time, keep the pond water level about 1 meter in March-April, and at the same time prevent the inflow of sewage and enemy pests.
Fourth, prevent disease
The pond should be managed by special personnel. Stick to the patrol ponds in the morning and evening every day. Check the water quality and determine the amount of fertilization and feeding. Timely salvage the bait, keep the pool water clean, and prohibit the feeding of deteriorating feed. Drugs for the prevention of fish disease are regularly carried out. Every 15 days, 1PPm bleach and 0.7 ppm copper sulfate aqueous solution are sprayed alternately. If fish diseases are found, diagnosis and treatment should be promptly conducted.
Hunan Kangfutai Medical Devices Co., Ltd. , https://www.3kfut.com