Is it feasible to raise fish with pig manure?

Pig manure has excellent texture and contains more organic matter and nutrients such as nitrogen, phosphorus and potassium. Pig manure decomposes slowly and is suitable as base fertilizer. One serving of pig manure can increase grain output by 200-300 kg. But people usually think that pigs are dirty animals. Under the condition of modern pig raising, pig manure treatment is a key environmental protection technology, otherwise it will cause environmental pollution. Through the scientific treatment of fertilizer raw materials, pig manure is added to high-quality organic fertilizer to achieve zero pollution, zero emission and no odor, so that pig manure becomes gold.

Pig manure fish farming is one of the traditional aquaculture models in China. It reasonably uses pig manure fertilizer and water to provide food for fish, which not only solves the problem of pig manure discharge, but also saves the cost of fish feed for farmers, and finally brings benefits and income. The density of pig manure fish pond is 6000-8000 fish per mu. Silver carp accounted for 70%, followed by grass carp, accounting for 20%. Finally, a small amount of crucian carp and carp, accounting for 10%. Pig manure needs to be fermented before it can be put into production. After the empty pool water is disinfected, 250 kg/mu is put in for the first time, and then 50 kg/mu is put in every 10- 15 days.

Eat grass carp. Representative fish are grass carp, snapper, snapper and so on. They mainly eat aquatic plants, algae and phytoplankton. They also eat reeds, underwater crops and plants on the river banks, as well as young leaves and grass seeds on the water. Most fish can be farmed artificially, mainly using aquatic feed. The addition of fish meal in herbivorous fish feed is very low or even absent, while that in carnivorous fish feed is very high. Fish are distributed all over the world, and there are many kinds, mainly freshwater fish and marine fish, but they all have the characteristics of fresh meat and rich nutrition. They are a good source of some vitamins and minerals.

Eating fish regularly can effectively prevent heart disease, eyes and retina, and strengthen brain and nerve tissue. Fish muscle fiber is short, protein tissue structure is loose, and water content is high. The meat is tender. Compared with poultry meat, it tastes softer and easier to digest. Therefore, fish has the advantages of high protein, low fat, rich in vitamins and minerals, good taste and easy digestion and absorption. Can strengthen the spleen and stomach.