Received: 17-03-2016 / Accepted: 29-04-2016
The aims of the present study were to investigate the prevalence of postpartum metritis in sows and to evaluatetheeffects of some risk factors on the prevalence of thedisease. The data monitored and collected from309 sows ofthreepig farms in threeprovinces,i.e.Bac Giang, Nam Dinh, and Hoa Binh wereanalyzed using logistic regression. Followingthe univariate logistic regression analysis, the factors associated with postpartum metritis (P < 0.2) were retained and used to construct a multivariate logistic regression model. Results showed that the prevalence of postpartum metritis in sows was 76.38%. Multivariate logistic regression analysis demonstrated that midwifery (OR = 8.86, P <0.001) and farrowing duration (OR = 1.36, P < 0.01) significantly affected the postpartum metritis status in sows. The present study substantiated that the prevalence of postpartum metritis in sows at studied farms was very high. Avoiding midwifery and reducing the farrowing duration may help reduce the risk of affliction of postpartum metritis.