Tang Cunzhen, a 51-year-old farmer from Guicui Road in Tangquan Town, has been deeply involved in aquaculture for decades. In the 1990s, he took on the responsibility of managing 160 mu of water in Maoquan, focusing on raising special aquatic species. Recognizing market trends, he introduced hybrid blackfish from Guangdong in 2002, aiming to meet growing demand. Through years of trial and error, he developed a complete system for breeding hybrid blackfish in monoculture ponds, along with effective technical solutions. By 2006, the aquaculture area on Guicui Road had expanded to 100 mu, with each mu producing 5,000 catties of adult fish. The output value reached 32,500 yuan per mu, and the average profit was around 12,000 yuan per mu, making it a highly profitable venture.
In terms of techniques, farmers should select an area of approximately 10 acres with a water depth ranging from 1 to 2.5 meters for breeding. Each month, about 5,000 blackfish fry are stocked, and they are regularly fed with extruded feed or small fish. Hybrid blackfish grow quickly, with first-generation fish reaching about 500 grams within a short time. Their feed conversion rate is around 1.15, which makes them efficient to raise. Harvesting typically occurs at the end of November according to the lunar calendar. Fish can be caught using nets, or the pond can be drained to separate larger fish from smaller ones, ensuring optimal yields and quality. This method not only maximizes production but also helps maintain the health of the remaining fish population.
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