Advance of Early Pregnancy Diagnosis Technology in Dairy Cows
ZUO Hai-yang，CHEN Xiao-li,CAI Yong，HAO Hai-sheng，QIN Tong，ZHAO Xue-ming，LU Yong-qiang，WANG Dong
ACTA VETERINARIA ET ZOOTECHNICA SINICA . 2014, (10): 1584 -1591 .  DOI: 10.11843/j.issn.0366-6964.2014.10.002