Have you ever touched the runway to raise fish? How are the various conclusions drawn? Imagination or reasoning? I hope that some practitioners who have been engaged in runway farming or similar high-density farming will give objective opinions. Water quality purification system of peripheral pond: plant submerged or emergent plants, stock aquatic animals such as silver carp, loach, snail and freshwater shrimp, and purify the water body. The water surface of peripheral pond is equipped with air-lift water pushing facilities.
Using runway to build pollution absorption device, because the density of runway culture is generally high, it is necessary to avoid the aggravation of pollution in the process of breeding. The shape and direction of the pond. The pond is rectangular in shape. The length-width ratio is 2-3: 1 and the width is 30-50m, which is convenient for management and trawling. The direction of the pond should be east-west, which is conducive to extending the sunshine time.
Fish is an animal that lives in water for a long time. Fish can be divided into riffraff fish, middle-class fish and upper-class fish. In order to ensure the comprehensive utilization of water and feed in the same water environment, reduce the feeding cost and improve the production efficiency, professional fish ponds are suitable for breeding silver carp, bighead carp, carp and crucian carp. Silver carp, bighead carp, carp and crucian carp are three kinds of fish, which can save feed and enrich water and ponds for fish growth. In winter and spring, it is necessary to store water deep, and it is just about one meter by the pond weir.