Genetic selection: Resistance to retained placenta in dairy cows

Retained placenta is a prevalent reproductive disorder in dairy cows that is defined as the failure to expel foetal membranes within 24 hours after parturition, causing the risk of uterine infections and infertility. Retained placenta leads to an estimated financial loss of US$ 150 to US$ 386 per cow per lactation due to increased culling risk, reduced reproductive performance, enhanced calving interval, augmented veterinary costs and decreased milk yield. In the past, the focus was mainl