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. Specific measures include the following:
Clean water before fishing
Before the fishing, the ponds should be cleaned to remove the obstacles such as branches, stumps, and stones in 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
In winter ponds, the water 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 network to be faster
Before the winter fishing is done on the net, the fish nets must be well-organized and placed on the appropriate side of the pond. 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
Due to the low water temperature in winter, the body's metabolism is slow and its ability to resist disease is reduced. If continuous fishing operations are carried out every day, the fish will be injured continuously in a short period of time. Not only will the fish's wounds hardly heal, it will also cause bacteria such as hydromycosis to enter the water, causing fish diseases and even causing an outbreak of fish diseases. Therefore, it is advisable to catch fish every three to five days in winter.
Fishing over the disinfection pond
Whenever a fishing period is over, the fish stocks must be disinfected. The disinfection method is as follows: After deepening the water level, 30-50 kg of quick lime per acre is used to uniformly spray the pond after the hydration is opened to prevent germs from causing disease.
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