Low J C, Sutherland H K
Vet Rec. 1987 Jun 13;120(24):571-5. doi: 10.1136/vr.120.24.571.
A postal census of vaginal prolapse in sheep flocks in the Borders region of Scotland yielded 540 replies from 963 owners (56 per cent). There were 262,250 ewes in 976 flocks and 2573 vaginal prolapses were reported. Analysis of the data revealed that 390 (40 per cent) of the flocks had no vaginal prolapses and in 237 (24.3 per cent) the reported prevalence was between 0.1 per cent and 1.0 per cent. Only 63 (6.5 per cent) of flocks had a greater than 5 per cent prevalence of vaginal prolapses. The greatest number of prolapses occurred in an upland flock of greyface ewes mated with Suffolk tups with 50 cases among 700 ewes (7.1 per cent) and the highest prevalence was in an upland Scottish blackface flock of ewes bred with Suffolk tups with 15.2 per cent (35 cases among 230 ewes). There were marked breed differences; very few hill breeds were affected and most cases occurred in greyface ewes mated with Suffolk tups.
对苏格兰边境地区羊群的阴道脱垂情况进行的邮政普查收到了来自963位羊主的540份回复（回复率为56%）。976个羊群中共有262,250只母羊，报告了2573例阴道脱垂病例。对数据的分析显示，390个（40%）羊群没有阴道脱垂病例，237个（24.3%）羊群报告的患病率在0.1%至1.0%之间。只有63个（6.5%）羊群的阴道脱垂患病率高于5%。脱垂病例数最多的是一群山地灰脸母羊与萨福克公羊交配的羊群，700只母羊中有50例（7.1%）；患病率最高的是一群苏格兰山地黑脸母羊与萨福克公羊交配的羊群，患病率为15.2%（230只母羊中有35例）。存在明显的品种差异；很少有山地品种受到影响，大多数病例发生在与萨福克公羊交配的灰脸母羊中。
