Thomsen Peter T, Hansen Isabella, Martin Henrik Læssøe, Kudahl Anne B
Aarhus University, Department of Animal Science, Tjele, DK-8830, Denmark.
Aarhus University, Department of Animal Science, Tjele, DK-8830, Denmark.
Vet J. 2017 Jun;224:44-45. doi: 10.1016/j.tvjl.2017.06.003. Epub 2017 Jun 13.
To evaluate the prevalence of sole haemorrhages among Danish dairy breed bull calves and associated risk factors, 730 calves were hoof trimmed shortly before slaughter and the presence of sole haemorrhages was recorded. Associations between the outcomes sole haemorrhages and severe sole haemorrhages, and the explanatory variables daily weight gain, liver abscesses and flooring, were analysed. Of the 730 calves, 545 (74.7%) had sole haemorrhages and 119 (16.3%) had severe sole haemorrhages. Calves housed on slatted concrete floors with cubicles had higher odds of sole haemorrhages (odds ratio, OR, 2.69, 95% confidence interval, CI, 1.81-4.00; P<0.001) and severe sole haemorrhages (OR 2.07, 95% CI 1.36-3.14; P<0.001) than calves housed on deep litter straw. The odds of severe sole haemorrhages increased with increasing daily weight gain (OR 1.28, 95% CI 1.07-1.54 for an increase of 100g/day; P=0.008).
为评估丹麦奶牛品种公牛犊 sole 部出血的患病率及相关风险因素，在屠宰前不久对 730 头犊牛进行了蹄部修剪，并记录 sole 部出血情况。分析了 sole 部出血和严重 sole 部出血结果与解释变量日增重、肝脓肿和地板类型之间的关联。在 730 头犊牛中，545 头（74.7%）有 sole 部出血，119 头（16.3%）有严重 sole 部出血。与饲养在厚垫草上的犊牛相比，饲养在带隔间的混凝土板条地板上的犊牛出现 sole 部出血（优势比，OR，2.69，95%置信区间，CI，1.81 - 4.00；P<0.001）和严重 sole 部出血（OR 2.07，95%CI 1.36 - 3.14；P<0.001）的几率更高。严重 sole 部出血的几率随日增重增加而增加（日增重每增加 100g/天，OR 1.28，95%CI 1.07 - 1.54；P = 0.008）。 （注：原文中“sole”不太明确准确含义，暂保留英文未翻译）
