Feed additive for reducing excretion quantity of nitrogen and phosphorus in animal waste

Abstract

The invention provides a feed additive for reducing the excretion quantity of nitrogen and phosphorus in animal waste, and application of the feed additive. On the basis of low protein daily ration, histidine, beta-alanine and a complex enzyme preparation are added, so that the excretion quantity and the excretion rate of nitrogen and phosphorus in animal waste can be reduced. The feed additive for reducing the excretion quantity of nitrogen and phosphorus in animal waste is low in cost and environmentally friendly; furthermore, after the feed additive is adopted, the balance of amino acid in the daily ration is maintained, and the nutritional requirement of growth and development of animals can be met, so that the feed additive has high popularization and application values.

Description

technical field [0001] The invention relates to the fields of agriculture and biotechnology, specifically to the field of feed additives, more specifically to a feed additive for reducing nitrogen and phosphorus excretion of animals and its application. Background technique [0002] Nitrogen and phosphorus are the main substances in pig manure and urine that cause environmental pollution. The content of nitrogen and phosphorus in pig feed is very high, but only part of nitrogen and phosphorus is deposited in the animal body, and most of the nitrogen and phosphorus in feed will be excreted into the environment with feces. Therefore, how to reduce the excretion of nitrogen and phosphorus in pig manure and urine has become an important factor for the development of pig farming in an environmentally friendly direction. The most effective way to reduce the excretion of nitrogen and phosphorus is to reduce the protein content in the diet under the premise of maintaining the balan...

AI Technical Summary

Problems solved by technology

[0014] Although it is known in the prior art that the above-mentioned raw materials can theoretically increase the protein and amino acid utilization rate of animals, in actual production, the improvement range is very limited, especially for large-scale pig farms. The effect is often very unsatisfactory, often resulting in the lack of nutrition of commercial pigs, or can not reduce the nitrogen and phosphorus excretion of pigs, thus not conducive to environmental pollution, still need to invest a large amount of protein raw materials, and produce large-scale waste, which is harmful to the environment cause serious pollution