Comparison of Fusobacterium necrophorum isolates from liver abscesses, ruminal walls, and ruminal contents of feedlot cattle (1998)

Abstract

DNA finger printing (restriction fragment lining than in cattle with normal rumens. The length polymorphism analysis) was employed positive correlation between incidence of liver to genetically compare Fusobacterium abscesses and ruminal lesions was the basis for necrophorum isolates of liver abscesses, the hypothesis that F. necrophorum in liver ruminal wall, and ruminal contents from the abscesses is of ruminal origin. Our approach same animal. Fusobacterium necrophorum to documenting that F. necrophorum of liver isolates from liver abscesses were genetically abscesses originates in the rumen was to show identical to the corresponding isolates from the that the rumen wall and liver abscess isolates ruminal wall in eight of nine animals tested. are genetically identical and, thus, are progeny This genetic similarity between the isolates of a single cell. supports the hypothesis that F. necrophorum in liver abscesses originates from the ruminal wall.