School of Veterinary Medicine, Murdoch University, 90 South Street, Murdoch, Perth, Western Australia 6150, Australia; Politeknik Pertanian Negeri Kupang, Jln Prof. DR. Herman Yohanes, Kupang, West Timor, East Nusa Tenggara, Indonesia.
School of Veterinary Medicine, Murdoch University, 90 South Street, Murdoch, Perth, Western Australia 6150, Australia; Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Hubei Province 430070, China; College of Veterinary Medicine, Huazhong Agricultural University, Hubei Province 430070, China.
Res Vet Sci. 2020 Aug;131:43-50. doi: 10.1016/j.rvsc.2020.04.011. Epub 2020 Apr 10.
A cross-sectional study was undertaken to identify factors associated with herd-level seropositivity to Classical Swine Fever (CSF) in smallholder pig farms in West Timor, Indonesia. Questionnaires were distributed to 240 pig farmers from 8 villages in two districts to collect information about farm structure and herd information, reproductive management and performance, husbandry, pig introductions and exits, health status, farmers' knowledge and history of vaccination. Three risk factors were found to be associated with the presence of antibodies to CSF in the herd in a multivariable logistic regression model. Seropositivity was associated with the introduction of pigs in the 12-month period preceding the survey (OR 4.78, 95% CI: 1.46, 15.71). Farmers who kept goats were 3.42 (95% CI: 1.20, 9.81) times more likely to have seropositive pigs than farmers without goats. Herds that had been vaccinated against CSF were also 2.33 (95% CI: 1.10, 5.12) times more likely to be seropositive than non-vaccinated herds. This latter positive association is likely to be as a result of antibodies induced by vaccination rather than a true risk factor for infection. The results of the questionnaire highlighted the lack of implementation of biosecurity measures by smallholder farmers in West Timor, which has the potential to increase the risk of their pigs to CSF, as well as other diseases.
本研究采用横断面研究，旨在确定印度尼西亚西帝汶小规模养猪场中与猪群血清阳性 Classical Swine Fever（CSF）相关的因素。研究人员向来自两个地区的 8 个村庄的 240 名养猪户发放了问卷，以收集有关农场结构和猪群信息、繁殖管理和性能、饲养管理、猪的引进和淘汰、健康状况、农民的知识和疫苗接种历史等信息。多变量逻辑回归模型发现了 3 个与猪群存在 CSF 抗体相关的风险因素。血清阳性与调查前 12 个月引进猪有关（OR 4.78，95%CI：1.46，15.71）。与没有养山羊的农民相比，养山羊的农民其血清阳性猪的可能性高 3.42 倍（95%CI：1.20，9.81）。接种过 CSF 的猪群也比未接种疫苗的猪群更有可能呈血清阳性，可能性高 2.33 倍（95%CI：1.10，5.12）。后一种阳性关联可能是由于疫苗接种引起的抗体，而不是感染的真正危险因素。问卷调查结果突出了西帝汶小规模农民在实施生物安全措施方面的不足，这有可能增加他们的猪感染 CSF 以及其他疾病的风险。
