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Fish stocking should be arranged reasonably according to water body conditions.
During a "science and technology to the countryside" activity, the author learned that many fish farmers have had unsatisfactory yields and profits over the years in pond fish farming. The main reasons are that the fish stocked were not reasonably matched according to the feeding habits and behaviors of the fish, the varieties stocked were single, the quantities were too high or too low, and the sizes were small. This situation exists to some extent all over the country. The end of the year and the beginning of the year is the season when large quantities of fish are stocked in various places. In order to make full use of the water body, stock fish reasonably, and increase the yield per unit area of the water body, the key points for reasonably stocking fish according to local water conditions are as follows.
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How should the optimal vaccination program for chickens be arranged?
1. Before chicks start eating; use streptomycin spray or nasal drops, 2000-4000 units per bird, to prevent respiratory diseases. 2. At 1 day of age, vaccinate with turkey herpesvirus vaccine, inject 0.2 ml of solution subcutaneously per bird, to prevent Marek's disease. 3. At 3 days of age, use 0.01% potassium permanganate in drinking water to prevent digestive tract diseases. 4. At 5 days of age, chop garlic and mix it into the feed to feed the chickens, or add half a tablet of crushed oxytetracycline per kilogram of feed, feeding continuously for 7 days, to prevent pullorum disease in chicks.
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