日粮营养限制及补偿对蒙古羔羊瘤胃内环境及细菌多样性的影响-动物营养与饲料学专业论文.docx

(4) Under this daily ration restricted, protein restricted group and both protein and energy restricted group had significant effect on the internal environment and bacteria of rumen in lambs.Key Words:compensation growth；Lamb；Rumen；Internal enviromenrt；emzyme activty；BacteriaDirected by: Prof.WANG HairongApplicant for Master degree: FENG Hui (Animal Nutrition and Feed Science) (College of Animal Science. Inner Mongolia Agricultural University. Hohhot 010018. China)目录1引言 ............................................................... 11.1补偿生长 ....................................................... 11.1.1补偿生长的概念 ............................................... 11.1.2补偿生长与限制的相互关系 ..................................... 21.1.3补偿生长的表现形式 ........................................... 21.1.4补偿生长的影响因素 ........................................... 21.2瘤胃微生物概述 ................................................. 31.2.1瘤胃细菌 ..................................................... 31.2.2瘤胃原虫 ..................................................... 31.2.3瘤胃真菌 ..................................................... 41.3瘤胃微生物的研究方法 ........................................... 41.3.1传统的纯培养方法 ............................................. 41.3.2分子生物学方法 ............................................... 41.4日粮结构对瘤胃细菌的影响 ....................................... 91.4.1日粮结构对细菌数量的影响 ..................................... 91.4.2日粮结构对细菌菌群的影响 ..................................... 91.5课题研究的依据及意义 .......................................... 101.6试验技术路线 .................................................. 102试验研究 .......................................................... 102.1日粮营养限制及补偿对蒙古羔羊瘤胃内环境的影响 .................. 102.1.1试验目的 .................................................... 102.1.2试验材料 .................................................... 112.1.3试验方法 .................................................... 122.1.4数据统计分析 ................................................ 152.1.5试验结果 ....................................