Markusfeld O
Vet Rec. 1984 Jun 2;114(22):539-42. doi: 10.1136/vr.114.22.539.
Factors associated with retained placenta and post parturient metritis in Israeli-Friesian dairy cattle are examined. The overall incidence rate, in a total of 2017 calvings on seven farms, was 16.1 per cent for retained placenta and 37.3 per cent for primary metritis. Risk factors associated with retained placenta include rising parity, short gestations, induction of parturition, multiple births, summer calvings, left displacement of the abomasum and ketosis. Risk factors associated with metritis include declining parity, long gestations, induction of parturition, stillbirth, multiple births, low milk yield before drying off, left displacement of the abomasum, ketosis and winter calvings. A proposed aetiology of metritis is presented and the various possible factors involved are discussed.
对以色列-弗里生奶牛胎盘滞留和产后子宫炎的相关因素进行了研究。在七个农场的总共2017次产犊中，胎盘滞留的总体发生率为16.1%，原发性子宫炎的总体发生率为37.3%。与胎盘滞留相关的风险因素包括胎次增加、妊娠期短、引产、多胎、夏季产犊、皱胃左移和酮病。与子宫炎相关的风险因素包括胎次下降、妊娠期长、引产、死产、多胎、干奶前产奶量低、皱胃左移、酮病和冬季产犊。提出了子宫炎的一种病因假说，并讨论了其中涉及的各种可能因素。
