Manage water well and keep good water. To manage water well, it is to do a good job of flood prevention and drainage to prevent animals from escaping. In the rain area, it is necessary to step up the work of patrolling ponds, reinforce the levees and drain the water in a timely manner. In flood-prone areas, additional fences shall be provided to prevent escape during flooding. To maintain good water is to maintain aquaculture water "fat, live, tender, cool" to meet the rapid growth needs of aquatic animals. At present, the Jianghuai region is arid, water resources are insufficient, and the aquaculture water level is generally low. To this end, we need to make a fuss about bait control, fertilizer control, and control of the density to prevent the transfer of fertilizers and old water. When the water level is low, the amount of water in the water is relatively high, and floating heads must be prevented to ensure the safety of aquatic animals. For shrimp and crab ponds, care must be taken to maintain the diversity of species in the water body, and by timely cutting and suppressing the growth of aquatic plants, the area occupied by aquatic plants should not exceed 1/2 of the water body.

Look at the weather feeding. Looking at feeding and feeding is to pay attention to changes in the weather and timely adjust the amount of feeding, so as not only to ensure the feeding needs of aquatic animals, but also to avoid wasting or polluting the environment. The food intake of aquatic animals is affected by water temperature and dissolved oxygen. When the dissolved oxygen is less than 5 mg/l, eating is inhibited; when it is greater than this value, eating is pleasant, the feed conversion rate is high, and the feed coefficient is low. In fact, low dissolved oxygen inhibits food. Under normal circumstances, the weather is fine and normal feeding, rainy weather reduced feeding. When thunderstorms are sultry and windless, the last meal is fed less or even not fed. The phenomenon of "satisfaction with food and death" in production is due to the lack of tolerance to low dissolved oxygen in hunger. In addition, the residual bait is easy to consume oxygen and easy to make water, but in the state of low dissolved oxygen for a long time, aquatic animals have slow growth, poor resistance, and easy incidence.

Prevention is better than cure. The Yangtze-Huaihe region was affected by the typhoon before and after the beginning of the fall. It was a period of rainy weather. At this time, it was also a period of frequent occurrence of diseases and attention was paid to disease prevention. If there is no pest, use only one disinfectant. When smelling stench at the pool, adding new water or diverting water with a water improver can reduce the incidence of disease.

Cool and Washable Cotton Mask, you can see many kinds of Masks in this catalog, it`s a fashion and soft Way in this summer to against cornavirus/covid-19, better than traditional KN95/FFP2 Respirator. And customer can also use PM2.5 Carbon Activated Filter Pad to insert the Mask to make sure the High filtration Efficiency.

Cotton Mask

Cotton Mask,Cotton Face Mask,3 Ply Cotton Mask,Disposable Cotton Mask

CAREABLE BIOTECHNOLOGY CO,. LTD , https://www.careablemask.com