Tessema Wondimu, Getachew Minale, Tora Ephrem
Sodo Regional Veterinary Laboratory, Wolaita Sodo, Ethiopia.
Arba Minch University, Arba Minch, Ethiopia.
J Parasitol Res. 2024 Apr 10;2024:6303598. doi: 10.1155/2024/6303598. eCollection 2024.
Among small ruminants, lungworms are important parasitic nematodes that infect the lower respiratory tract and are implicated in a high mortality and morbidity rate. However, the magnitude and its determinants of lungworm infection in the study districts are not known. The objective of this study was to estimate the prevalence of lungworm infection and assess associated risk factors in selected districts, Wolaita Zone, southern Ethiopia. A total of 742 fecal samples collected from 443 sheep and 299 goats were examined, using modified Baermann techniques, to recover first-stage larvae from fecal samples. Lungworms were detected in 271 (36.52%) samples infecting 192 (43.34%) sheep and 79 (26.42%) goats, respectively. Lungworm species Dictyocaulus filaria, Protostrongylus rufescens, and Muellerius capillaris were recovered in 114 (15.36%), 68 (9.16%), and 57 (7.68%) fecal samples, respectively. Mixed infection by two or more above species was noted in 32 (4.31%) of the samples. Among the determinants examined, agroecological environment, management system, and season showed statistically significant differences ( < 0.05) with the prevalence of infection in small ruminants. On the other hand, lungworm infection among sexes, age groups, and body condition scores showed no statistically significant difference ( > 0.05). The present study indicated that lungworm infection was a problem for sheep and goats in this study area. Thus, measures like deworming, early treatment, and improving animal husbandry should be practiced.
在小型反刍动物中，肺线虫是重要的寄生线虫，可感染下呼吸道，并与高死亡率和发病率有关。然而，研究地区肺线虫感染的程度及其决定因素尚不清楚。本研究的目的是估计埃塞俄比亚南部沃莱塔地区选定地区肺线虫感染的患病率，并评估相关风险因素。使用改良的贝尔曼技术，对从443只绵羊和299只山羊采集的总共742份粪便样本进行检查，以从粪便样本中回收第一期幼虫。在271份（36.52%）样本中检测到肺线虫，分别感染了192只（43.34%）绵羊和79只（26.42%）山羊。分别在114份（15.36%）、68份（9.16%）和57份（7.68%）粪便样本中发现了丝状网尾线虫、红原圆线虫和毛细缪勒线虫。在32份（4.31%）样本中发现了两种或更多上述物种的混合感染。在所检查的决定因素中，农业生态环境、管理系统和季节与小型反刍动物感染患病率存在统计学显著差异（<0.05）。另一方面，性别、年龄组和身体状况评分之间的肺线虫感染没有统计学显著差异（>0.05）。本研究表明，肺线虫感染是该研究地区绵羊和山羊面临的一个问题。因此，应采取驱虫、早期治疗和改善畜牧业等措施。
