生物活性肽的生理作用及其在畜禽生产中的应用

Physiological Functions of Bioactive Peptides and Application in Livestock and Poultry

随着各种具有生物活性的短肽的不断发现 ,其研究和开发日益受到各国科学家的关注。其可作为营养物质直接用于合成体蛋白及螯合和运输 Ca2 +等矿物质 ,使矿物质的吸收利用率提高。免疫肽类则能刺激机体淋巴细胞的增殖和增强巨噬细胞的吞噬能力 ,从而增强机体的免疫力。具有抗氧化和调味作用的肽类可作为天然防腐剂代替化学合成产品以提高饲料品质。生物活性肽在畜禽日粮中的应用效果也证实了其可增进动物健康、促进畜禽生长发育及改善畜产品品质 ,在反刍动物则成为瘤胃微生物氮素营养研究新生长点。因此生物活性肽有广阔的研究和应用前景。

When more and more new kinds of bioactive peptides (BAPs) were discovered, the studying area for peptides became a focus in many countries. On one hand,as nutritional material they can directly compound body protein, on the other hand,as carrier they can combine and transport minerals such as Ca^(2+) thereby improve the minerals' absorption and utilization efficiency. Immunopeptides not only were able to stimulate the proliferation of lymphocyte cells but also were able to reenforce the phagocytosis ability of macophage thereby enforce the ability of body's immunization against diseases. Peptides which serve as anti-oxidization and flavour can be a kind of natural antiseptic to replace chemical products in order to enhance the quality of feed. The effects of BAPs used in the diet testified that they can improve animals' health, hasten the growth of livestock and poultry as well as improve the quality of animal products, as to ruminant animals BAPs also become new research hot spot in rumen microbe nitrogen element nutrition.Therefore,BAPs would be of wide and good prospects of studying and application.