Sadiq M B, Ramanoon S Z, Mansor R, Syed-Hussain S S, Shaik Mossadeq W M
Department of Farm and Exotic Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia.
Centre of Excellence (Ruminant), Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia.
Trop Anim Health Prod. 2017 Dec;49(8):1741-1748. doi: 10.1007/s11250-017-1387-4. Epub 2017 Aug 31.
The objectives of this cross-sectional study were to estimate the prevalence of lameness, claw lesions, and associated risk factors in dairy farms in Selangor, Malaysia. The sample population was 251 lactating cows from 8 farms assessed for lameness and claw lesions by locomotion scoring and claw assessment respectively while specific animal-based measures were hypothesized as cow-level risk factors. The Wilcoxon rank test and logistic regression were applied to assess the prevalence of lameness, claw lesions, and association with potential risk factors, respectively. The prevalence of lameness was 19.1% ranging from 10.0 to 33.3% while 31.1% of cows had claw lesions and ranged from 16.3-40%. Claw lesions were recorded in 87.5% of the lame cows with highest being those affected with sole lesions (54.2%) and white line disease (61.2%). Overall, the occurrence of overgrown claws, sole lesions, white line disease, and digital dermatitis were 37, 18.2, 10.9, and 8.3%, respectively. More than one claw lesion per cow was present in 71.8% of the affected cows. Lameness was associated with early lactation (OR = 3.3; 95% CI 2-7), injured hocks (OR = 4.8; 95% CI 5-17), and dirty legs hygiene (OR = 2.6; 95% CI 1.3-6.2), whereas presence of claw lesions was associated with dirty legs hygiene (OR = 4.7; 95% CI 4-11) and overgrown claw (OR = 2.7; 95% CI 1.4-5.3). To reduce the prevalence of lameness, farmers need to improve the management of cows with overgrown claw, injured hocks, and cleanliness by establishing routine claw trimming and efficient stall design.
这项横断面研究的目的是估计马来西亚雪兰莪州奶牛场跛足、蹄部病变及相关风险因素的患病率。样本群体为来自8个农场的251头泌乳奶牛，分别通过运动评分和蹄部评估来评估跛足和蹄部病变情况，同时将特定的基于动物的指标假定为奶牛层面的风险因素。分别应用威尔科克森秩和检验与逻辑回归来评估跛足、蹄部病变的患病率以及与潜在风险因素的关联。跛足的患病率为19.1%，范围在10.0%至33.3%之间，而31.1%的奶牛有蹄部病变，范围在16.3%至40%之间。87.5%的跛足奶牛有蹄部病变，其中受足底病变影响的比例最高（54.2%），白线病的比例为（61.2%）。总体而言，过长蹄、足底病变、白线病和指皮炎的发生率分别为37%、18.2%、10.9%和8.3%。71.8%的患病奶牛每头存在不止一种蹄部病变。跛足与泌乳早期（比值比=3.3；95%置信区间2至7）、跗关节受伤（比值比=4.8；95%置信区间5至17）以及腿部卫生状况差（比值比=2.6；95%置信区间1.3至6.2）相关，而蹄部病变的存在与腿部卫生状况差（比值比=4.7；95%置信区间4至11）和过长蹄（比值比=2.7；95%置信区间1.4至5.3）相关。为降低跛足的患病率，养殖户需要通过建立常规的蹄部修剪和高效的牛舍设计来改善对过长蹄、跗关节受伤奶牛的管理以及清洁状况。
