How to do a good job of fish fry's rational stocking relationship to the entire farmer's breeding efficiency level, Qihe County Fisheries Bureau actively organizes fishery technical personnel to go deep to Tangkou to guide the majority of scientific and technological demonstration households to do a good job of stocking fish stocks. Comrades abandon holiday breaks and conduct technical guidance for model households. Each time he visits a farmer, he must do the following six things in the process of stocking fish:
1. Clearing and disinfection of ponds. 15 days before stocking, the fish should be given a small amount of water, and then be splashed with quicklime of 75 to 100kg/mu or bleached powder of 5 to 7kg/mu.
2, grasp the timing of stocking. The best time for stocking is the spring water temperature of 7 to 8°C. At this time, the fish scales are tight and their vigor is weak. Fish are not easily injured and the survival rate is high. When stocking should be carried out on sunny and windless days, rain, snow, and freezing weather will freeze the fish, and it is not suitable for stocking.
3, choose high-quality fish species. Should be selected neat specifications, physical fitness, full muscle, bright color, scales, fins integrity, no injury-free fish species stocking, in order to improve the survival rate. It is necessary to increase the stocking ratio of large-scale fish species as far as possible so that the fish and the morning market can be balanced and supply and increase output and efficiency.
4, prevent fish from injury. Due to the relatively low water temperature and temperature during the spring season, fish injures will not recover easily and cause fish diseases. Therefore, in the fishing, transportation, stocking and other aspects should be carefully handled to prevent fish injuries.
5, polyculture with a reasonable. When the main cultured fish and breeding cultivars are well-established, reasonable collocation can be achieved. Generally, the main fish can account for 60% to 70%, and the ration fish can account for 30% to 40%.
6, fingerling disinfection. Disinfection of fingerlings can reduce the occurrence of diseases and increase the survival rate.
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