Shaanxi Hongbaiyi Biotech Co., Ltd. , https://www.sxhongbaiyi.com
First, into the box time: generally from late September to early October, when the water temperature of 15% to 18% is appropriate, not less than 10%.
Second, fingerling disinfection: Disinfection before entering the box can be combined with the transport of fingerlings. That is, 20 minutes to 30 minutes before the transportation arrives at the destination, the drug is dissolved and put into a shipping canvas or fish bucket. The concentration of the drug is bleaching powder lOppm or salt 2% -3%, according to Shui Cui flexible grasp. Be sure to accurately calculate the amount of drug administered.
3. Put the complete non-destructive double-layer cage into the water 7 days to 10 days before entering the box, so that the cage can attach a layer of algae or sediments, and then put the fish species, reducing the number of new cages to the fish Bruises.
Fourth, after the fish is fed into the box, feed the baits for a period of time, so that the injured parts of the fish species can be recovered in a timely manner during the catching and transport, so as to reduce fish diseases caused by infection.
Fifth, the caisson must be fed before the winter feed until the fish species do not eat (water temperature of about 5 °C -6 °C), to maintain the body before the winter is robust, do not cause premature death due to weakened fish body constitution.
6. The sinking time of the cage is controlled at a water temperature of 4°C. At this time, the temperature of the water above and below the water body is basically the same, the convection at the upper and lower levels is over, and the fish is stable when it sinks. It will not cause unrest due to changes in the water layer.
In the autumn, the fish species enter the box. After being fattened through the pond, the constitution is generally strong, and it is easy to adapt to the cage environment. At the same time, when the cascading caisson was overwintering, not only did the wintering body lose more weight than the pond, but after the end of spring in the winter, the fish began to eat at about 5°C, and the growth period was longer than that in the spring. The speed is fast and the output is significantly improved. The overwintering fish in the caisson is about 30% faster than the spring-inoculated fish, and the size of the outbox is about 35% larger. Therefore, it is a good way for fish species to go into the winter in the fall. Its operating technology is as follows: