Trees A J, Owen R R, Craig P S, Purvis G M
Vet Rec. 1985 May 11;116(19):512-6. doi: 10.1136/vr.116.19.512.
A problem of high levels of liver condemnations which had affected bought-in lambs fattened on a North Yorkshire farm for several years was investigated. Because the farmer spread pig slurry on the land, migrating Ascaris suum larvae were initially suspected as a cause but the investigation eliminated this possibility. Migrating Taenia hydatigena larvae were found in tissue sections and isolated from livers. A combination of parasitological and serological evidence using oncospheral antigen in an ELISA suggested that infection was occurring immediately before the arrival of lambs on the farm, although a source of infection on the farm was also identified. Peak liver condemnations occurred in December-January. Possible reasons for this are suggested and the relevance of these findings to national liver condemnation losses are discussed.
对一个存在高水平肝脏废弃率的问题进行了调查，该问题已影响北约克郡一个农场饲养的外购育肥羔羊数年。由于该农场主将猪粪施用于土地，起初怀疑迁移的猪蛔虫幼虫是病因，但调查排除了这种可能性。在组织切片中发现了迁移的泡状带绦虫幼虫，并从肝脏中分离出来。使用ELISA中的六钩蚴抗原的寄生虫学和血清学证据相结合表明，感染发生在羔羊抵达农场之前不久，尽管也确定了农场内的感染源。肝脏废弃率高峰出现在12月至1月。文中提出了可能的原因，并讨论了这些发现与全国肝脏废弃损失的相关性。
