5MADOZ L V, GIULIODORI M J, JAUREGUIBERRY M, et al. The relationship between endometrial cytology during estrous cycle and cut off points for the diagnosis of subclinical endometritis in grazing dairy cows[ J]. J Dairy Sci,2013,96(7) :4333 -4339.
6DUBUC J,DUFFIELD T F,LESLIE K E,et al. Definitions and diag- nosis of postpartum endometritis in dairy cows [ J ]. J Dairy Sci, 2010,93 ( 11 ) :5225 - 5233.
7LIU M C, WU C M, LIU Y C, et al. Identification, susceptibility, and detection of integron - gene cassettes of Arcanobacterium pyogenes in bovine endometritis [ J ]. J Dairy Sci ,2009,92 (8) :3659 -3666.
8董常生.家畜解剖学[M].北京:中国农业出版社,2012.
9WILLIAMS E J. Drivers of post - partum uterine disease in dairy cat- tie[ J]. Reprod Domest Anim,2013,48( 1 ) :53 -58.
10AGHAMIRI S M, HAGHKHAH M, AHMADI M R, et al. Develop- ment of a multiplex PCR for the identification of major pathogenic bacteria of post- partum endometritis in dairy eowsE J]. Reprod Do- mest Anim,2014,49(2) :233 -238.
