第一部分以三头装有永久性瘤胃瘘管的土种山羊为试验动物，研究了在青干草日粮条件下，去除瘤胃真菌对山羊瘤胃消化代谢的影响。

• The first experiment studied on the effect of eliminating the anaerobic fungi onmetabolism and digestibility of rumen in three native filtrated goat given roughagediets with hay.