›› 2016, Vol. 43 ›› Issue (3): 683-688.doi: 10.16431/j.cnki.1671-7236.2016.03.018

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Research Progress on Diagnosis Methods of Subclinical Endometritis in Dairy Cows

YAN Bao-qi1, DONG Shu-wei1, WANG Dong-sheng1, NA Li-dong1,2, YANG Hong-zao1,2, ZHANG Shi-dong1, YAN Zuo-ting1   

  1. 1. Lanzhou Institute of Animal Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China;
    2. College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2015-08-20 Online:2016-03-20 Published:2016-03-30

Abstract: In the absence of clinical symptoms,dairy cows with subclinical endometritis are defined as sustainably extensive infiltration with the polymorphonuclear cells (PMN) in endometrial samples,and it often lead to dairy cow with repeated infertility.In China,the infertility proportion of dairy cows is 50.62% caused by endometritis,in which 90% is caused by subclinical endometritis.It is difficult to be observed during the early stage of subclinical endometritis,and the best treatment time is delayed in the most cases causing huge economic losses.So it has become a research hotspot to make correctly and timely diagnosis of this disease.At present,the main diagnosis methods of dairy cows subclinical endometritis are vagina endoscope method,cell brush,biopsy technology,ultrasonic diagnosis technology,leukocyte esterase method and so on.However there is no uniform criterion.Different diagnosis methods of subclinical endometritis were summarized,analyzed and discussed in this paper to provide the references for the subclinical endometritis diagnosis more accurately and earlier,and reduce the losses of dairy farms.

Key words: dairy cow; subclinical endometritis; diagnosis technology

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