Kumar Rajender, Jain Shikha, Kumar Saroj, Sethi Khushboo, Kumar Sanjay, Tripathi B N
ICAR-National Research Centre on Equines, Sirsa Road, Hisar 125001, Haryana, India.
ICAR-National Research Centre on Equines, Sirsa Road, Hisar 125001, Haryana, India.
Vet Parasitol Reg Stud Reports. 2017 Dec;10:1-12. doi: 10.1016/j.vprsr.2017.06.008. Epub 2017 Jun 28.
Animal trypanosomosis (surra), caused by Trypanosoma evansi, is one of the most important diseases in livestock and wild animals in India. The disease is prevalent across all agro-climatic regions of India, and has a considerable impact on the country's livestock economy through direct and indirect impact on livestock productivity. In the present study, the economic losses on livestock productivity were assessed resulting from surra in India, considering all possible direct and indirect losses in major six livestock species viz., cattle, buffalo, goat, equine, camel and pig. The contemplative risk and retrospective analyses were performed using various official records and scientific literature complemented with expert data for evaluation of impact of surra on livestock productivity in India. Most of the information were derived using the secondary data published in scientific journals, and the official data reported by Basic Animal Husbandry and Fisheries Statistics (BAHS, 2014), the Government of India and other scientific reports. To address the variability and uncertainty, probability distributions for many input values were used in the present study and sensitivity statistical analyses were conducted using a simulation model. In the current analysis, all prices were assumed as deterministic. Based on present study, a total annual loss (direct and indirect) caused by surra was estimated to US $ 671.1 million or Indian Rupee (INR) 44,740 million (US $ 344-US $ 1209 million or INR 22951.88-80,752.35 million at 95% confidence interval), at present valuation. The mortality losses were estimated to 15.67% of the total loss. Among morbidity losses, the reduction in milk yield and reproductive losses components were 36.46% and 25.72% of total loss, respectively. Other parameters like reduction in growth (9.83%), reduction in draught power (7.95%) and additional opportunity cost (2.93%) also yielded considerable loss. The results highlighted the urgent need for early diagnosis and control strategies for surra in livestock species to reduce the productivity losses in the country's livestock sector.
由伊氏锥虫引起的动物锥虫病（苏拉病）是印度家畜和野生动物中最重要的疾病之一。该病在印度所有农业气候区都很普遍，通过对家畜生产力的直接和间接影响，对该国的家畜经济产生了相当大的影响。在本研究中，评估了印度苏拉病对家畜生产力造成的经济损失，考虑了牛、水牛、山羊、马、骆驼和猪这六种主要家畜可能的所有直接和间接损失。使用各种官方记录和科学文献，并辅以专家数据，进行了前瞻性风险和回顾性分析，以评估苏拉病对印度家畜生产力的影响。大部分信息来自科学期刊发表的二手数据，以及印度政府基础畜牧和渔业统计（BAHS，2014）报告的官方数据和其他科学报告。为了解决变异性和不确定性问题，本研究使用了许多输入值的概率分布，并使用模拟模型进行了敏感性统计分析。在当前分析中，所有价格都假定为确定性的。根据本研究，目前估计苏拉病每年造成的总损失（直接和间接）为6.711亿美元或447.4亿印度卢比（95%置信区间为3.44亿美元至12.09亿美元或229.5188亿印度卢比至807.5235亿印度卢比）。死亡率损失估计占总损失的15.67%。在发病损失中，产奶量减少和繁殖损失分别占总损失的36.46%和25.72%。其他参数，如生长减少（9.83%）、役力减少（7.95%）和额外机会成本（2.93%）也造成了相当大的损失。结果凸显了迫切需要对家畜物种的苏拉病采取早期诊断和控制策略，以减少该国畜牧业的生产力损失。
