Clearing ponds and disinfecting drugs
After dealkaline treatment of the cement pool, clean the pond and disinfect the pond in time, soak it with quicklime 100--150g/m ³or bleach 10g/m ³for a week, then drain the pool water for fresh water. In daily management, the water body is sprinkled with quicklime 10g/m ³or bleach 1g/m ³or trichloroisocyanuric acid (strong chlorocyanuric acid) 0.2-0.5g/m ³whole pool every 10 murals for 15 days, and the three are used cross-over. If the water quality is alkaline, bleach is used more frequently; if the water quality is acidic, quicklime is used more often. At the same time, oxytetracycline, sulfonamides and other drugs were mixed into the feed for internal administration, each medicine was used for 5 days and cross-used once every 20 days.
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Preparation of bait for fish
The treatment and prevention of fish disease is generally used to sprinkle medicine in the pond and mix the medicine in the feed for feeding, which is what we usually call oral method. The key to the effect of oral treatment and prevention of fish disease lies in the preparation of bait. The preparation methods and matters needing attention of several baits commonly used in production practice are introduced as follows: first, the preparation methods of several baits. Preparation of pellet feed bait: calculate the required feed and medicine, spread the feed evenly on the plastic film (thickness should be uniform, not
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Don't forget to protect the parent fish in order to induce labor.
Reducing the death of spawning parent fish is an important technical work for fish fry producers. In the production practice, we found that there are two reasons for the death of parent fish: first, the physical exertion of parent fish in the process of spawning and reproduction, coupled with the side effects of spawning drugs, reduce the resistance of parent fish, if the fish is seriously injured, a variety of pathogens will take advantage of the opportunity to infect the fish and cause disease, resulting in the death of the parent fish. Second, the physique of the parent fish is poor, the gonadal development is poor, or the water temperature changes greatly during the induction of labor, and the dosage of drugs used to induce labor is inappropriate.
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