饲草组合效应综合指数研究  

Study on the multiple-factors associative effects of forage

作　　者：高静[1] 贾玉山[1] 王晓光[1] 刘庭玉[2] 付俊平[1] 丁霞[1] 

机构地区：[1]内蒙古农业大学生态环境学院,内蒙古呼和浩特010019 [2]内蒙古民族大学,内蒙古通辽028000

出　　处：《草业学报》2012年第4期236-243,共8页Acta Prataculturae Sinica

基　　金：内蒙古农业大学"草地资源可持续利用"科技创新团队(NDTD2010-5);国家现代牧草产业技术体系和内蒙古自治区重大科技项目"优质全价草产品开发"(20091401)资助

摘　　要：依据组合效应综合指数(MFAEI)理论,以饲草的营养评价为基础,结合肉羊育肥营养需求特点,采用体外法,测定苜蓿、番茄皮渣、玉米秸与小麦秸不同组合的pH值、24h累积产气量(GP)、有机物质降解率(IVDOM)、微生物蛋白产生量(MCP)、挥发性脂肪酸产量(VFA),并结合MFAEI筛选出4组最优饲草配方,即苜蓿/番茄渣/玉米秸=30/10/60,此配方多项组合效应值0.80;苜蓿/玉米秸=50/50,此配方多项组合效应值0.85;苜蓿/番茄渣/小麦秸=30/20/50,此配方多项组合效应值0.82;苜蓿/小麦秸=60/40,多项组合效应值0.78,以最大限度地发挥饲草间的正组合效应,控制和消除饲料间的负组合效应,从而最大限度地发挥草食家畜的生产性能,降低饲养成本。This thesis is basis on the theory of multiple-factors associative effects index（MFAEI）,and adopts in vitro method to determine the pH,gas production（GP）,in vitro digestibility organic matter（IVDOM）,microbial protein（MCP）,and volatile fatty acid（VFA）.To select the priority of forage formula,the alfalfa,tomato pomace,corn stalks and wheat straw are employed.According to results,the priority of forage formula are as follow： Alfalfa/tomato pomace/corn stalks=30/10/60,the values of multiple-factors associative effects is 0.80;Alfalfa/corn stalks=50/50,the values of multiple-factors associative effect is 0.85;Alfalfa/tomato pomace/wheat straw=30/20/50,the values of multiple-factors associative effect is 0.82;Alfalfa/wheat straw=60/40,the values of multiple-factors associative effect is 0.78.These forage formulas could express the maximum of positive combined effect between forage,control and eliminate the negative combined effect to perform the maximum productivity of herbivorous livestock and reduce the feeding cost.

关 键 词：体外法 组合效应 组合效应综合指数 

分 类 号：S816[农业科学—饲料科学]