Ponds and Water Quality Issues for Grass Carp Stocking
Demonstration issues of ponds and water quality for grasshopper rearing of scientific and technological demonstration households:
1. Pond conditions. The pond is required to be far away from the source of pollution. The area is 5-10 acres. The bottom of the pool is flat, and the bottom soil is preferably loam. A slight leakage is preferred. The bottom mud is 10-20 cm and the water depth is about 2 meters. Each pond should be equipped with a 3-kilowatt impeller-type aerator and a 4-inch pump to prepare for water changes and aeration.
2. Strict cleaning and disinfection. Grass carp itself has more diseases and epidemics are more likely to occur in ponds. At the same time eliminating trash fish is an important measure to ensure grass carp normal feeding and save feed. The specific approach is: in the case of dry pond (water 5-10 cm) Mu 100 grams of lime slurry Quanchiposa, or mu bleaching with 10 kg of warm water dissolved Quanchiposa, so that no dead dead, completely Kill pathogenic bacteria.
3. Water quality. The pH value is 7.5-8.5. The transparency of the pool water is maintained at about 30 cm during the breeding season (June-September), and the organic oxygen consumption is 18-20 mg/L.
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