In recent years, with the continuous improvement of aquaculture technology, the efficiency of pond aquaculture has become a goal for fish farmers. However, under certain pond conditions, the regulation of pond water quality and the prevention of fish diseases have become a problem that plagued farmers. Let's talk about fish farming. Disinfection of the "four changes" problem, so as to avoid some farmers into the breeding errors.
Changed to non-drainage disinfection Discharge disinfection Discharge the water in the pond and then disinfect it with sunlight. This can effectively kill germs. If the pond contains fish species or fish that cannot be listed, a temporary pond can be dug on one side or a corner of the pond to raise the fish, then drain the water in the pond and allow the pond to be sterilized by sunlight. Generally, it is exposed to sunlight for about 1 week. After being disinfected with quicklime, it is re-injected with fresh water.
The drug was directly administered for the purpose of disinfecting the pond with quicklime or bleaching powder. The drug was directly administered unevenly and the effect was poor. If disinfected with quicklime, the average depth of water per acre pond is 100m to 150kg with quicklime. Digging pits will be done at the edge of the pond first, and the quicklime will be splashed with water and then splashed.
Changed to disease prevention to prevent the main prevention and control combination If the fish after the onset of drug treatment, often have missed the opportunity to prevent and control, the loss is relatively large. The correct method should be to disinfect the fish, feed, food, and tools before the epidemic of fish diseases. Feeding the feed should be "quality, quantity, timing, and positioning." Once fish develops, identify the cause of the disease and apply the medicine promptly.
To use mixed drugs as separate drugs If several kinds of fishery drugs are used together, mutual antagonism may easily occur, resulting in failure of the drug and even occurrence of toxic and side effects. Therefore, whether it is spilling drugs or using drug ingredients, it is not possible to combine and use multiple drugs. It is best to use 1 to 2 drugs alone. In addition, the dose should also be used according to the instructions for use according to the total weight of the fish.
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