In recent years, some aquaculture farmers have disputes on the polyculture of fish and ducks. Some think that fish and ducks are well-mixed and can promote the double harvesting of fish and ducks. Others believe that the polyculture of fish and ducks will affect the yield of fish, which is not worth the candle. In fact, if fish and duck are mixed or not, the key is to have no law. How can fish and duck polyculture be counted?
First, stocking fish should be appropriate in the polyculture of fish and duck ponds, should be based on cultured tilapia, followed by filter feeding eel, eel and omnivorous eel, eel and so on. Since grass carp enjoys a quiet water body, it should not be placed or placed less.
Second, do a good job of fish pond irrigation and drainage system Fish ponds in ducks, duck dung easily lead to excessive water quality, easy to make fish infected with disease, or flooding pond. Therefore, regular flushing of water into the fish pond is required. If the irrigation and drainage system is not good, the water will not fill, and the fertilizer and water will not be discharged, which will affect the normal growth of the fish.
Third, pay attention to changes in fish pond water quality According to fish pond water quality, appropriate adjustment of fish, duck stocking density. When the transparency of the fish pond water is maintained at 15 cm to 25 cm, 2500 to 2700 fishes of various species can be stocked and 200 to 300 ducks can be stocked. If the transparency of the water is reduced, clean water must be flushed in time, usually once every 7 days to 10 days.
4. Regular observation of duck droppings If undigested nutrients are found in duck droppings, feeding should be suspended to prevent wastage of feed or excess water.
Fifth, to strengthen the prevention of fish diseases and duck diseases In the fish ponds, 1 kg of bleaching powder or 15 kg of quicklime can be used evenly. Ducks should be regularly vaccinated. It is necessary to regularly disinfect the duck houses to prevent the introduction of duck pathogens into the water and indirectly infect the fish. (Chen Chundao)
First, stocking fish should be appropriate in the polyculture of fish and duck ponds, should be based on cultured tilapia, followed by filter feeding eel, eel and omnivorous eel, eel and so on. Since grass carp enjoys a quiet water body, it should not be placed or placed less.
Second, do a good job of fish pond irrigation and drainage system Fish ponds in ducks, duck dung easily lead to excessive water quality, easy to make fish infected with disease, or flooding pond. Therefore, regular flushing of water into the fish pond is required. If the irrigation and drainage system is not good, the water will not fill, and the fertilizer and water will not be discharged, which will affect the normal growth of the fish.
Third, pay attention to changes in fish pond water quality According to fish pond water quality, appropriate adjustment of fish, duck stocking density. When the transparency of the fish pond water is maintained at 15 cm to 25 cm, 2500 to 2700 fishes of various species can be stocked and 200 to 300 ducks can be stocked. If the transparency of the water is reduced, clean water must be flushed in time, usually once every 7 days to 10 days.
4. Regular observation of duck droppings If undigested nutrients are found in duck droppings, feeding should be suspended to prevent wastage of feed or excess water.
Fifth, to strengthen the prevention of fish diseases and duck diseases In the fish ponds, 1 kg of bleaching powder or 15 kg of quicklime can be used evenly. Ducks should be regularly vaccinated. It is necessary to regularly disinfect the duck houses to prevent the introduction of duck pathogens into the water and indirectly infect the fish. (Chen Chundao)
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