Winter is not only an opportunity for fish fishing, but also a potential factor for the increase of fish diseases and the occurrence and prevalence of fish diseases in the second year. Therefore, when fishing in winter, you must master the fishing methods and exercise caution to minimize fish injuries and prevent fish diseases.
Clean up the water before fishing to clear the pond before fishing. Remove the obstacles such as branches, stumps and stones from the bottom. Floating objects such as grasses on the surface of the water and obstacles around the pond should also be cleaned so that net operations can be performed without damaging the fish body.
Before catching, catching and catching water, the water in the pond is deeper. Before catching, some of the water must be drained and then harvested. Because if the water is not released before the catch, the water is too deep to facilitate the operation of the net, and it is easy for the fish to escape and bump during the fishing process. Therefore, in winter before fishing, the water level in the pond should be reduced to about 1.5 meters before normal fishing. After catching, the water level should be increased in time to increase the water temperature in the pond and ensure the safe wintering of the fish in the pond.
Under the net to light up the net to fast winter fishing before the next net, you must first tidy the fish net, put it on the side of the pond suitable place. Then gently place the nets, nets and floats into the water along the pool, and pull the nets from both sides of the pond. During the process of pulling the net, in the first half of the surface of the pond, it is necessary to move forward slowly so as to prevent the fish from jumping and causing injuries. When the net is pulled to the second half of the pond, the nets and nets must be quickly collected to minimize the fish's collision time and the amount of escape.
Try not to keep fishing as the water temperature in winter is low, the metabolism of the fish body is slow, and the ability to resist disease is reduced. If continuous fishing operations are carried out every day to make fish continuously injured in a short period of time, not only will the fish's wounds hardly heal, it will also cause bacteria such as hydromycosis to take advantage of it, resulting in a large number of fish diseases or even an outbreak of fish diseases. Therefore, it is advisable to catch fish every three to five days in winter.
End of disinfection disinfection pond Once a fishing period has passed, the entire pond is sterilized once. The disinfection method is: After deepening the water level, 30-50 kg of quick lime per acre is used to uniformly spray the pond after hydration.
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