Capion N, Thamsborg S M, Enevoldsen C
Department of Large Animal Sciences, University of Copenhagen, Bülowsvej 17, dk-1870 Frederiksberg C, Denmark.
Vet Rec. 2008 Jul 19;163(3):80-5. doi: 10.1136/vr.163.3.80.
In a cross-sectional study of 6240 Danish Holstein cows in 55 herds using loose-housing systems, sole haemorrhages and heel horn erosions occurred frequently in almost all the herds. Digital dermatitis occurred in 47 of the 55 herds (85 per cent). Spearman correlation coefficients revealed relationships between lameness and sole ulcer (0.36), between heel horn erosion and sole haemorrhage (0.39), between heel horn erosion and interdigital dermatitis (0.29) and between sole ulcer and double sole (0.26). The prevalence of heel horn erosion, sole haemorrhage, interdigital dermatitis and digital dermatitis appeared to be most affected by herd-level factors. The associations between individual foot trimmers and all the foot lesions were statistically significant. The risk of interdigital dermatitis increased with decreasing amounts of bedding. Cows housed throughout the year had a marginally higher risk of sole haemorrhage.
在一项对55个采用散栏饲养系统的丹麦荷斯坦奶牛群中6240头奶牛的横断面研究中，几乎所有牛群中蹄底出血和蹄踵角质糜烂都很常见。55个牛群中有47个（85%）发生了指（趾）间皮炎。斯皮尔曼相关系数揭示了跛行与蹄底溃疡之间的关系（0.36）、蹄踵角质糜烂与蹄底出血之间的关系（0.39）、蹄踵角质糜烂与指（趾）间皮炎之间的关系（0.29）以及蹄底溃疡与双蹄底之间的关系（0.26）。蹄踵角质糜烂、蹄底出血、指（趾）间皮炎和指（趾）间皮炎的患病率似乎受牛群水平因素的影响最大。个体蹄修剪工与所有蹄部病变之间的关联具有统计学意义。指（趾）间皮炎的风险随着垫料量的减少而增加。全年饲养的奶牛发生蹄底出血的风险略高。
