奶牛分娩相关某些疾病的发病率
Incidence of some diseases in connection with parturition in dairy cows.
作者信息
Roine K, Saloniemi H
出版信息
Acta Vet Scand. 1978;19(3):341-53. doi: 10.1186/BF03547604.
The incidence of dystocia, uterine, prolapse, retained placenta, puerperal metritis and vaginal prolapse was investigated in 283 herds over a period of eight years (about 2,590 cows per year). The incidence of dystocia (0.012 cases per cow and year), of uterine prolapse (0.002) and puerperal metritis (0.002) varied with the monthly variation in parturition. Retained placenta (incidence 0.025) occurred more frequently in March-June relative to parturition. The cows then calving were older than average. Vaginal prolapse (incidence 0.002) was also commoner in the spring months. Herds with a high incidence of retained placenta also showed more mastitis, ketosis and parturient paresis.
在八年时间里，对283个牛群（每年约2590头奶牛）的难产、子宫脱垂、胎盘滞留、产后子宫炎和阴道脱垂发病率进行了调查。难产发病率（每头奶牛每年0.012例）、子宫脱垂（0.002）和产后子宫炎（0.002）随分娩的月度变化而有所不同。相对于分娩时间，胎盘滞留（发病率0.025）在3月至6月更为常见。此时产犊的奶牛年龄高于平均水平。阴道脱垂（发病率0.002）在春季月份也更为常见。胎盘滞留发病率高的牛群还表现出更多的乳腺炎、酮病和产褥热。
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