Green and Efficient Technology of 'Biological Control + Precision Management' in Freshwater Fish Farming
Abstract：The traditional freshwater fish farming model in Baoying area mainly focuses on rearing crucian carp, with a small amount of co-cultivation of grass carp, silver carp, and bighead carp. In recent years, the hematopoietic organ necrosis disease of crucian carp has occurred frequently in the Baoying area, and there is still no effective treatment. Only measures such as seedling inspection, density reduction, environmental adjustment, and 'hunger therapy' are used to prevent and reduce mortality. After several years of publicity and guidance, the stocking density of crucian carp in the Baoying area has been reduced from 2,000-4,000 fry per mu to 1,000-2,500 fry per mu. The reduction in stocking density has some effect on disease control, but it also leads to a decrease in yield, affecting the economic benefits of farmers. Farmer Wang from Fenshui Town, Baoying County, with 20 acres of ponds, reduced the density of crucian carp while appropriately increasing the stocking density of grass carp, and also co-cultivated a small number of high-value species such as yellow catfish and mandarin fish, using biological control methods to control the occurrence of diseases, achieving high economic benefits.
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Publication Date：2025-12-10
Online Publishing Date：2026-01-09(First online date of this platform, not the publication date of the document)
Pages：2( 27-28 )