A bogey pond is not stocked For old ponds that have reared fish, there is an increase in water quality, natural food, H2S, and other harmful substances and pathogens, and more silt in the bottom of the pond will not only affect water quality, but also be a breeding ground for some germs. Therefore, certain species must be preserved before stocking. To clear the pond disinfection. First of all, after catching the fish, we must pay close attention to the transformation of Xiaotang, shallow ponds, dead water ponds, and leaky water ponds. The fish ponds with better conditions should also be trimmed, put dry pond water, and be excavated after sun exposure or freezing. Sludge, remove weeds, heighten and reinforce the pond. After the ponds are well-prepared, the fishes are completely cleared with clear lime before they are stocked. There are two methods of disinfection: the dry pond method and the water-carrying method. 1. Dry pond method: first put most of the water out of the pond, leaving 5 to 10 cm deep bottom water, 75 to 100 kg of lime per acre pond, water pouring slurry into the pond, or pouring 4 to 5 kg of bleaching liquid In the pond. After 5 to 7 days, fill the pond water and fish can be released after the toxicity disappears. 2. With water law: water depth 1.0m per acre, with quicklime 150 ~ 180kg, the lime slurry evenly spilled. Generally 7 to 9 days after disinfection, fish can be released. Second bogey fish species do not disinfect In particular, fish species purchased from other places must be disinfected when they are stocked. Generally, 3% to 5% of salt solution can be used to soak fish seeds for 5 to 10 minutes or 10 ppm of potassium permanganate solution to soak fish seeds for about 20 minutes. The concentration and time of the medicinal bath can be flexibly controlled according to the water temperature. Three bogey stocking time is not suitable It's not too early or too late to choose a sunny, windless day for stocking. The specific stocking time should be based on the water temperature, and the best water temperature for the stocking should be 7°C～8°C. At this time, the fish species are not easy to be injured when the net is transported. Rainy days, frozen days should not be released fish species. Four bogey direct stocking For specific stocking, do not pull the fish directly into the pond. Pay attention to the temperature difference. The temperature difference should not be too large. Especially after long-distance transport of fish species, the water temperature should be adjusted before putting it into the pond so that the temperature difference between the transport water temperature and the pond water temperature is less than 3°C. Five bogey wild stocking Reasonable stocking, first, the density of the main breeding stocks should be reasonable; second, the mix of varieties should be reasonable. Water quality fertilizer ponds should be based on carp, polyculture ratio: 45% to 60% of carp, carp 5%, grass carp 10%, carp 10%, carp, carp, carp, etc. 10% to 5% each . For water-thinning and green-feeding ponds, the grass carp should be used as the main mixed culture ratio: 45% to 55% of grass carp, 20% of carp, 5% to 10% of carp, 10% to 50% of carp, carp, carp, etc. %. Flowing ponds or ponds with convenient injection and rowing, and well-watered ponds mainly feed on fish, and the polyculture ratio ranges from 5% to 15% for whitefish and 95% to 85% for fish. In the intensive fish pond, the mu stocking mullet in general 600 to 1500 tails, accounting for about 80%, polyculture pods 100 to 200, accounting for about 20%. For a pond with a depth of 3.0 m, 150 to 180 tails are placed per 100 m2, 120 m to 120 mm for 2.0 m, and 90 to 120 tails for 2.0 m. It is necessary to improve the stocking of high-quality fish, such as heterotrophic silver cockles and squid, and adopt suitable species such as freshwater whitefish and Californian cod to adapt to market demand and increase economic efficiency. After six taboos After fish stocking, we must strengthen management in time. In warm and sunny weather, when the temperature is high, feed should be properly put in order to feed the fish, restore the body as soon as possible, and accelerate the growth; when the temperature is low, deepen the water level to prevent fish frostbite. Battery Vape Pen,Pod Vape Pen,Popular Electric Cigarette,2Ml Refillable Vape Pod Shenzhen Wanna Technology Co.Ltd , https://www.veiikvape.com