In an interview, the reporter learned that Li Qingwei, a villager in Qilu Village, Baoshan Town, Fengcheng City, used pig manure to breed fish. He not only obtained considerable economic income from raising pigs, but also reduced the cost of fish farming in the process of raising fish with pig manure. Greatly improved the economic benefits of fish farming. According to Li Qingwei, two years ago, he set up a pig farm. Not only did pigs raise money to increase their income, he also put pig dung into ponds, thereby reducing the amount of fish feed and reducing the cost of fish farming. Improve the water of the pool, so that the economic benefits of fish breeding doubled. In the past, fish bait feed was used to feed fish. The yield per mu was more than 2,000 yuan, but now the mu revenue is more than 4,000 yuan. Li Qingwei told reporters that he used pig manure to fish, mainly catfish, and carp supplemented. The squid mainly eats phytoplankton, and the pig manure can be used for 3-5 days in the water to produce a large amount of phytoplankton. However, in order to better regulate the water in the fish pond, it is most beneficial to the growth of fish. Some amount of carp was put in. Because the squid mainly eats zooplankton, phytoplankton can produce zooplankton in 5-8 days. To regularly measure the water and fertilizer, the phenomenon of "fish floating head" appears when the water-in-water is too high or too low. Under normal circumstances, pig manure should be applied every 2-3 days. (Liaoning Peasants Daily)
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