Jithendran K P, Bhat T K
Disease Investigation Laboratory, Indian Veterinary Research Institute, Palampur, India.
Vet Parasitol. 1996 Feb;61(3-4):265-71. doi: 10.1016/0304-4017(95)00834-9.
A survey incorporating field and abattoir studies was carried out on the prevalence of Dicrocoelium dendriticum in sheep and goats in the Kangra valley of Himachal Pradesh (India). Coprological studies on these migratory animals revealed that 8.1% of sheep and 4.1% of goats were positive for dicrocoeliosis, with a mean number of eggs per gram of faeces (EPG) of 702.1 for sheep and 566.7 for goats. The necropsy liver examination of slaughtered animals revealed that 24.1% of sheep and 12.3% of goats were infected with D. dendriticum and they had mean fluke burdens of 247.2 (sheep) and 298.1 (goats). No significant differences in fluke burden, liver lesion score and EPG count were observed between sheep and goats. The seasonal distribution of dicrocoeliosis indicated a higher percentage of infection in autumn and winter as compared with spring and summer. The potential role of migratory sheep and goats in the epizootiology of dicrocoeliosis is discussed.
在印度喜马偕尔邦康格拉山谷开展了一项包含实地和屠宰场研究的调查，以了解绵羊和山羊体内枝双腔吸虫的流行情况。对这些迁徙动物进行的粪便学研究表明，8.1%的绵羊和4.1%的山羊双腔吸虫病呈阳性，绵羊每克粪便中的平均虫卵数（EPG）为702.1，山羊为566.7。对屠宰动物的肝脏尸检显示，24.1%的绵羊和12.3%的山羊感染了枝双腔吸虫，它们的平均吸虫负荷分别为247.2（绵羊）和298.1（山羊）。绵羊和山羊在吸虫负荷、肝脏病变评分和EPG计数方面未观察到显著差异。双腔吸虫病的季节分布表明，与春季和夏季相比，秋季和冬季的感染率更高。文中讨论了迁徙绵羊和山羊在双腔吸虫病流行病学中的潜在作用。
