The application of molecular biotechnology such as molecule marker and the small subunit ribosomal RNA(SSU rRNA)in the research of ruminal protozoal was reviewed.

• 分子标记和基于小亚基核糖体RNA的分子生物学技术可以在基因和分子水平上为研究瘤胃原虫提供可靠而丰富的依据。