Method for reducing levels of crude protein and phosphorus in fattening pig compound feed

Abstract

The invention relates to a method for reducing the levels of crude protein and phosphorus in a fattening pig compound feed. According to the method, monomer lysine, methionine and phytase are added into the pig compound feed, wherein every 1 kilogram of premix monomer comprises 100-150g of lysine, 60-100g of methionine, 2.50g of copper, 8.00g of zinc, 8.00g of iron, 4.00g of manganese, 15mg of iodine, 20mg of selenium, 50g of compound multi-vitamin for pigs and 10-20g of phytase. According to the method, the defect caused by the fact that the absorption of the mineral elements is influenced because pigs do not have enzyme for digesting the phytate phosphorus and phytate phosphorus is chelated with other divalent and trivalent metal elements such as calcium, magnesium, zinc and iron to form compounds which are very difficult to dissolve is overcome; and the method has the effect of reducing the levels of nitrogen and phosphorus in the fattening pig compound feed at the same time without reducing the production property of the pigs and has the advantages of satisfying the nutritional requirements of the pigs, saving the bean pulp without influencing the production property of the pigs, and discharging nitrogen.

Description

technical field [0001] The invention relates to the field of feed processing, in particular to a method for reducing crude protein and phosphorus levels in compound feed for fattening pigs. Background technique [0002] Before the present invention was made, in order to obtain greater growth rate and lean meat percentage in the production of fattening pigs, mainly to use high-protein feed formula and high phosphorus formula, excrete a large amount of to the environment through feces and urine in the fattening pig breeding process Nitrogen and phosphorus are the main environmental pollutants in pig production. Under the action of microorganisms, nitrogen-containing substances in feces and urine are degraded, and a large amount of volatile harmful gases are produced, which affects the health of humans and animals and reduces the production performance of pigs. Not only that, protein feed is mainly soybean meal, the price is high, resulting in waste of resources, and more prote...

AI Technical Summary

Problems solved by technology

At the same time, in pig production, the feed type of pigs is mainly corn-soybean meal type, and the phosphorus contained in it is mainly phytate phosphorus (more than 60%), and the total phytate phosphorus is a cyclic compound containing six phosphate groups , Phosphorus in phytate phosphorus not only has a low digestion and absorption rate (about 30%), pigs do not have enzymes to digest phytate phosphorus, but also form extreme chelation with other divalent and trivalent metal elements such as calcium, magnesium, zinc and iron. Insoluble compounds that affect the absorption of mineral elements

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