Shi P J, Meng K, Zhou Z G, Wang Y R, Diao Q Y, Yao B
Microbial Engineering Department, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.
Lett Appl Microbiol. 2008 Jan;46(1):132-5. doi: 10.1111/j.1472-765X.2007.02274.x. Epub 2007 Oct 27.
This study was carried out to determine whether bacterial and ciliate populations in goat rumen vary significantly between different goat species living in the same environment.
Bacterial and ciliate communities in the rumen of three goat species were analysed at the molecular level using denaturing gradient gel electrophoresis. The microbial community varied considerably among goats living in the same environment. Interspecies variation in the bacterial population was noticeably greater than intraspecies variation. In contrast, there was considerable variation in the ciliate population among goats within the same species, and intraspecies similarities were no greater than those observed across species.
Because environmental factors and diets were identical for all goats, differences in bacterial populations reflect species-specific differences in rumen microbes.
Factors related to the host species have an important effect on determining the bacterial composition in the goat rumen.
本研究旨在确定生活在同一环境中的不同山羊品种，其瘤胃中的细菌和纤毛虫种群是否存在显著差异。
采用变性梯度凝胶电泳技术，在分子水平上分析了三种山羊瘤胃中的细菌和纤毛虫群落。生活在同一环境中的山羊，其微生物群落差异很大。细菌种群的种间差异明显大于种内差异。相比之下，同一物种内山羊的纤毛虫种群存在相当大的差异，种内相似性并不高于跨物种观察到的相似性。
由于所有山羊的环境因素和饮食相同，细菌种群的差异反映了瘤胃微生物的物种特异性差异。
与宿主物种相关的因素对确定山羊瘤胃中的细菌组成具有重要影响。
