Why is the Shenzhou Xianke Giant Crucian Carp called the giant among crucian carp?
Crucian carp is the most traditional high-quality fish favored by consumers, accounting for more than 15% of the output of conventional farmed fish, and has achieved remarkable economic and social benefits in driving the development of the aquaculture industry. It can be said that the crucian carp market is an eternal market. In recent years, China's crucian carp has also been exported to Japan and South Korea, far from meeting the demand of domestic and international markets, especially export commodity crucian carp of about 0.75 kg.
"Xianke Giant Crucian Carp" is the latest crucian carp selection and breeding achievement successfully bred by fish breeding experts through years of dedicated research, combining traditional selection and breeding techniques with modern biological technology. This fish has excellent body shape, body color, and meat flavor, strong disease resistance, broad feeding habits, tolerance to cold and low oxygen, tolerance to long-distance transportation, inability to reproduce on its own, and extremely fast growth. The biological characteristics and farming of Xianke Giant Crucian Carp are briefly described below.
1 Biological characteristics
"Xianke Giant Crucian Carp" lives in the upper, middle, and lower layers of water bodies, has the habit of living in groups, is docile in temperament, and is suitable for high-density farming. Its survival water temperature is 0-38°C, feeding water temperature is 10-35°C, growth water temperature is 15-32°C, pH is 5-8.5, optimal pH is 7-7.5, and salinity is 0‰-7‰. During general pond farming, the dissolved oxygen level should be maintained above 4 mg/L; even when the dissolved oxygen in the pond water drops to 1 mg/L, it will not die from floating head. The critical point of dissolved oxygen is less than 0.25 mg/L, and death is caused only when the dissolved oxygen in the water body is lower than 0.1 mg/L.
This fish is an omnivorous fish that mainly feeds on plant-based feed and has strong adaptability to bait. At the fry stage, it mainly feeds on zooplankton. When the body length reaches more than 6 cm, it begins to shift to mainly plant-based feed while also eating organic debris and commercial feed. During high-yield adult fish farming, it is fed hard pellets or extruded pellets with a crude protein content of 28%-34%.
"Xianke Giant Crucian Carp" grows extremely fast, with the largest individual reaching more than 6 kg, and after half a year to one year of farming it generally can grow to 0.6-1.5 kg.
2 Commodity fish farming
"Xianke Giant Crucian Carp" is suitable not only for high-density farming in ponds, lake enclosures, and cages in rivers, lakes, and reservoirs, but also for mixed farming with pond-cultured fish. In pond main farming of "Xianke Giant Crucian Carp," 1500-2000 fry of more than 3 cm are stocked per mu, and full-price hard pellets or extruded pellets are fed. After 5-6 months of rearing, individuals generally reach about 0.75 kg, and the yield per mu reaches 1000-1500 kg. In the south, with two crops per year, the annual yield per mu can reach 2000-2500 kg, the feed coefficient is about 1.5, and the annual profit per mu is as high as more than 10,000 yuan. In a @#@243@#@ fish main farming pond, mixed farming of 150-200 "Xianke Giant Crucian Carp" of 3 cm can increase crucian carp income by 200-300 kg per mu; in main farming of eel, mixed farming of 200-300 "Xianke Giant Crucian Carp" of more than 3 cm can increase crucian carp income by 120-200 kg per mu. In cage farming of "Xianke Giant Crucian Carp," generally 150-200 fingerlings of more than 50 g are stocked per square meter; after 4-5 months of farming, more than 200 kg of crucian carp can be harvested per cubic meter.
The economic benefits of farming "Xianke Giant Crucian Carp" are remarkable, and its commercial value has been recognized by the market and consumers. The product demand is huge, so the farming future of "Xianke Giant Crucian Carp" is bright, and it is currently the best promoted farming variety for rural scientific and technological prosperity in freshwater and coastal low-salinity waters across the country.