Incidence, course and outcome of uterine prolapse in a herd of dairy cows during 13 years

摘要

From 1987 through 1999 a total of 52505 calvings on a large dairy farm were followed by 167 cases of uterine prolapse (0.3%), which was on average 13 cases per 4050 calvings annually. In primiparous cows 24.8% of the prolapses were preceded by dystocia, in pluriparous cows this percentage was 8.9%. Postparturient paresis (mainly due to hypocalcaemia) occurred in 39 cases (23.4%) of uterine prolapse. Of the 140 successfully treated cows 86 were inseminated, 71 (82.6%) were found pregnant and one cowaborted. The mean service period was 84 days (40-208 days), the interval birth-conception 117 days and the insemination index 1-9 (1-5 inseminations). The analysed material revealed a possible connection between the increasing rates of uterine prolapse,milk fever and dystocia, the considerably increasing milk performance and the realization of a breeding programme based on Holstein Friesian bulls during the last years. Recommendations for the treatment are given.