文档介绍：酶制剂的发展及在奶牛业生产中的应用
2010-04-12 22:24:11 来源:甘肃畜牧工程职业技术学院浏览:742次
(刘瑞玲甘肃畜牧工程职业技术学院甘肃武威 733006)
摘要:人们根据酶能促进蛋白质、脂肪、淀粉、粗纤维分解的作用,深入研究找到一种能补充瘤胃微生物消化能力的物质—外源性酶制剂,来提高饲料利用率和改善奶牛生产性能。研究证明酶制剂有三种可能的作用机理:对反刍动物采食前的影响;瘤胃作用;瘤胃后作用,也可能是三种作用的综合,但未确定具体的作用模式。外源性酶制剂对动物采食量及产乳量的影响不大,但确有促进纤维消化,提高产奶量的积极效果,而且经济效益显著。
关键词:外源性酶制剂;产奶量;消化程度
The development of enzyme preparation and application in the dairy industry production Liu Rui-ling
(Gansu Polytechnic College of animal Husbandry and Engineering , Gansu Wuwei733006)
Abstract: The people study to find a material to add the digest capacity of rumen anisms - exogenous enzymes ,to improve the utilization rate of feed and improve the performance of dairy cattle,because enzyme has the role of promoting the position of protein, fat, starch, crude fiber. This article describes three types of enzymes may be the mechanism: the impact of ruminant pre-feed; role of the rumen; after the rumen, it may be the role of the prehensive, but not been specific role model. There is little impact of exogenous enzyme preparation to animal feed intake and milk production, but there is the promotion of fiber digestion, the positive results of improving the milk yield and significant economic benefits.
Key words: exogenous enzyme preparation; milk production; the extent of digestion
近年来,随着生产中高产奶牛数目的增多,奶牛的产奶量也在不断提高,在产奶量提高的同时,必须要增加饲料的投喂量,特别是精饲料的投喂量,但精饲料的大量投喂,会造成奶牛瘤胃内平衡失调,使