Low-carbon and environment-friendly fish-farming method

Abstract

The invention discloses a low-carbon and environment-friendly fish-farming method. The method comprises the following steps: (1) performing cage culture in a pond and assembling a fish feces recovery system and a translation bottom sewage self-leaking system under a cage to recover fish feces, so that sewage and deposits at the bottom of the pond are discharged effectively, and pollution of fish feces and residual feeds on a water body is lowered; (2) arranging aeration equipment outside a cage culture zone to promote flow of the upper, lower and surface layers of the water body and increase dissolved oxygen of the water body; (3) planting aquatic plants in a floating bed and combining pond culture and wet land planting and culture outside the cage so as to realize coexistence of fishes and vegetables and biologically purify water; (4) performing scientific fish culture by adopting a scientific culture mode represented by seven words, namely, water, planting, feed, prevention, separation, mixing and labor. According to the low-carbon and environment-friendly fish-farming method, the current-stage pond fish culture facility is changed, engineering of innovative culture equipment is realized, scientific design and scientific layout are achieved, scientific combination of comprehensive technologies such as physical and biological purification and the like is performed, combination with an ecological and environment-friendly culture technology is realized, and integrated innovation is implemented.

Description

technical field [0001] The invention relates to a breeding method, in particular to a low-carbon, environmentally friendly scientific fish farming method to replace traditional farming techniques. Background technique [0002] The technology of fish farming started relatively early. Freshwater cage culture in my country began in the 1970s. Fish are also cultured in cages in slow-flowing river courses and even in deep ponds. The usual place for cage fish farming technology is to choose generally larger waters, such as power generation reservoirs, lakes, etc., where fish can be cultured in cages, and some rivers with better conditions and deep-water ponds with larger areas can also set up cages. In order to obtain a better breeding effect, you should generally choose a place with flat water bottom, small wind and waves, relatively stable water level, water depth above 3.5m, sufficient water source, fresh water quality and no pollution. Cages should be located as far away as p...

AI Technical Summary

Problems solved by technology

[0003] Reduce the feed factor and breeding cost, ecologically prevent and control fish diseases, ensure the quality and safety of aquatic products, and sell fish products smoothly. Swimming slowly, check the pH of the water as high as 9.0, because the pH rises by 1, the concentration of toxic non-ionic ammonia increases, and the toxicity increases by about 10 times, which not only inhibits the growth of fish, but also causes a large number of fish to die in severe cases, causing heavy losses to farmers Therefore, the oxygen should be increased 1 hour in advance, and the feeding time should be adjusted. Especially when the dissolved oxygen is lower than 3mg / L, it is easy to be attacked by parasites and bacteria, which will reduce the immune function of the fish and cause fish diseases. Not only the fish grow slowly, but the feed The coefficient is high, and in severe cases, it will cause fish death and cause heavy losses

These are the consequences of lack of scientific fish farming

Images