猪低污染日粮技术的研究进展

Research progress on low pollution dietary of pig

通过补充合成氨基酸,降低日粮蛋白质水平(2%～4%),能使氮的排出量显著减少.日粮蛋白质水平每降低一个百分点,氮的排出量大约减少8%;在日粮中添加植酸酶可提高磷的利用率,减少日粮中无机磷的添加量,从而降低磷的排出.此外,抗生素、益生素等在减少猪营养物质方面也有一定作用.

Supplying compound Amino Acid can reduce the dietary protein level (2%～4%) and decrease the ejection of Nitrogen.It is showed that dietary protein level decreased 1% which made the ejection of Nitrogen lessen 8%, And phytase supplemented in dietary which increased the utilization of Phosphor and reduced the ejection of Phosphor. Furthermore, antibiotics,prebiotics and so on have some efficiency in reducing ejection of pigs.