China Dairy ›› 2022, Vol. 0 ›› Issue (4): 61-67.doi: 10.12377/1671-4393.22.04.12

• DISEASE PREVENTION • Previous Articles     Next Articles

Research on the Incidence Regularity of Retained Placenta in a Large-scale Dairy Farm in Southern China

YANG Liji1, XIA Qing2,*, ZHANG Qinmei1, ZHANG Xiaohui2, LAI Xia2, GE Xin1   

  1. 1Bright Farming Co.Ltd.,Shanghai 200436;
    2Shanghai Institute of Dairy Science,Shanghai 200436
  • Online:2022-04-25 Published:2022-05-05

Abstract: Retained fetal membranes(RFM)in dairy cows is a common metabolic disease in dairy farms,which has a great impact on cows’ health and production. This article was based on the data from January to December 2021 in a large-scale dairyfarm in the south. Research on patterns of RFM from different months,dry perioddays,gestation days,perinatal days,transition cows’ body condition and so on. The results showed that:RFM increased significantly during the heat stress period;RFM increased when parity increased;RFM increased when dry period days insufficient;RFM increased when gestational days decreased;RFM increased when transition days decreased;RFM increased both when transition cows’ body conditions core was low or high;RFM increased significantly with the calving age of heifers increasing;RFM of cows giving birth of male was higher than female;RFM increased when dystocia occurred,and the cows with fetal dystocia such as malposition,twin and stillbirth have higher rate,but the weight of calves had no effect on RFM.

Key words: retained fetal membranes, incidence regularity, heat stress, dry period days, gestational days, body condition score, dystocia, twins

CLC Number: 

  • S823
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