National Animal Health Diagnostic and Investigation Center, PO Box 04, Sebeta, Ethiopia.
Prev Vet Med. 2011 Dec 15;102(4):274-83. doi: 10.1016/j.prevetmed.2011.07.003. Epub 2011 Aug 17.
The financial cost of clinical Lumpy Skin Disease (LSD) and the financial benefit of its control through vaccination were studied based on questionnaire survey in Oromia region of Ethiopia from the perspective of livestock farmers. Production loss impacts for local zebu cattle were compared with those of Holstein Friesian (HF)/crossbred cattle in the study area. Annual cumulative incidence of LSD infection in HF/crossbred and local zebu cattle were 33.93% (95% CI: 30.92-36.94) and 13.41% (95% CI: 12.6-14.25) respectively and significantly different (p<0.05). Annual mortality was also significantly higher in HF/crossbred 7.43% (95% CI: 5.76-9.10) than in local zebu cattle 1.25% (95% CI: 0.98-1.52). The annual financial cost was calculated as the sum of the average production losses due to morbidity and mortality arising from milk loss, beef loss, traction power loss, and treatment and vaccination costs at the herd level. The financial cost in infected herds was estimated to be USD 6.43 (5.12-8) per head for local zebu and USD 58 (42-73) per head for HF/crossbred cattle. A partial budget analysis was used to estimate the financial benefit of an annual vaccination program in both the local zebu and HF/crossbred cattle farming systems. The marginal rate of return (MRR) gained from this control intervention was estimated to be 34 (3400%) and the net benefit per head was USD 1 for local zebu and USD 19 for HF/crossbred cattle. Vaccination thus enabled financial costs due to LSD to be reduced by 17% per head in local zebu herds and 31% per head in HF/crossbred herds. These results could provide guidance to producers and the government in their endeavors to control the disease.
从牲畜饲养者的角度，基于在埃塞俄比亚奥罗米亚地区的问卷调查，研究了临床牛结节疹（LSD）的经济成本以及通过接种疫苗进行控制的经济收益。本研究比较了当地瘤牛和荷斯坦弗里生牛/杂交牛的生产损失。在研究区域内，荷斯坦弗里生牛/杂交牛的 LSD 年累积感染率为 33.93%（95%置信区间：30.92-36.94），当地瘤牛为 13.41%（95%置信区间：12.6-14.25），两者差异显著（p<0.05）。荷斯坦弗里生牛/杂交牛的年死亡率也明显高于当地瘤牛（7.43%，95%置信区间：5.76-9.10）（1.25%，95%置信区间：0.98-1.52）。每年的财务成本是由群体层面的发病率和死亡率导致的产奶量损失、牛肉损失、牵引力损失以及治疗和疫苗接种成本的平均值来计算。感染牛群的财务成本估计为每头本地牛 6.43 美元（5.12-8 美元），荷斯坦弗里生牛/杂交牛每头 58 美元（42-73 美元）。采用部分预算分析来估计本地牛和荷斯坦弗里生牛/杂交牛养殖系统中年度疫苗接种计划的经济收益。从这种控制干预中获得的边际收益率（MRR）估计为 34（3400%），每头的净收益为本地牛 1 美元，荷斯坦弗里生牛/杂交牛 19 美元。因此，接种疫苗使本地牛群的 LSD 相关财务成本降低了 17%，荷斯坦弗里生牛/杂交牛群降低了 31%。这些结果可为生产者和政府在疾病控制方面提供指导。
