1. Recirculating water supplement oxygen. Several nearby fish ponds are connected by cement pipes or plastic pipes. The water from one pond is pumped by mechanical means to another pond. The water bodies of several fish ponds form a cycle. After the water body flows, the contact with the air increases, and oxygen in the air dissolves in the water body, thereby increasing the amount of dissolved oxygen in the water body. 2. Apply organic fertilizer to supplement oxygen. Over 150-200 kg of organic fertilizer per acre for overwintering fish ponds can promote the growth and reproduction of phytoplankton, increase the photosynthetic capacity and temperature of pond water, and increase the oxygen content of water bodies. 3. Inject water and oxygen. The other fish ponds will be injected into overwintering fish ponds with more fertile water. There are many phytoplankton in the fertilizer water, which can increase the dissolved oxygen in fish ponds by increasing photosynthesis. 4. Stir the pond water to make up for oxygen. In the severe winter season, the ice on the surface of the fish ponds can be broken, and the bottom water of the fish ponds can be stirred. After the lower water is mixed with the upper water, the upper layer of dissolved oxygen is transported to the lower layer to supplement the oxygen in the lower water layer. 5. Change water and oxygen regularly. Select warm and windless weather to change the water, change the amount of water for each third of the pond water is appropriate, pay attention to the temperature of the water can not exceed 3 degrees Celsius, by changing the water can restore the body's dissolved oxygen and nutrient balance, reduce pond water ice .
Hebei Abiding Co.Ltd, a professional food supplier, was established in 2005 in Shijiazhuang, China. We specialize ourselves in supplying Organic Tomato Paste and Organic Pasta. Conventional ones are also available to supply. We can make the private labels according to the customers' requirement. Our products have EU, NOP and JAS organic certificates. They are also Kosher certified. We have business relationships with importers and wholesalers from around the world, mainly in Europe and America. Over the years, we have earned highly recognition from clients due to our qualified service and steadily increase our market share year after year.
Products and Services
1. OEM service provided. We can do OEM with your brand(print, graphics on the products).
2. We have different types of organic pasta.(One-shop service)
3. International certificates. Guarantee our quality and make sure you can sell them all over the world!
Adzuki Bean Pasta,Bio Adzuki Bean Pasta,Bio Adzuki Bean Noodle,Organic Adzuki Bean Noodle Hebei Abiding Co.Ltd , https://www.hebeiabiding.com
In winter, when the fish species and the fish that have not reached the product specifications are pooled, the fish’s oxygen demand increases due to the increase in the density of the fish in the pond, and the water surface after freezing is closed. At this time, if the supplemental oxygen is not paid attention in time, it is easy. Causes fish to die, sometimes serious losses. After anoxic fish do not die even in winter, it will seriously affect the growth of the following year, resulting in serious reduction of production. Overwintering fish pond oxygen can take several effective methods: