Selective enumeration of Fusobacterium necrophorum from the bovine rumen.

Draft Genome Sequence of Fusobacterium necrophorum subsp. funduliforme Bovine Liver Abscess Isolate B35

Fusobacterium necrophorum is a Gram-negative anaerobic bacterium that causes foot rot and liver abscesses in cattle. F. necrophorum subsp. necrophorum and the less virulent organism F. necrophorum subsp. funduliforme are recognized. We present here a draft genome sequence of the bovine liver abscess isolate F. necrophorum subsp. funduliforme strain B35, which affords a genomic perspective of vi...

Isolation and Biochemical Characterization of Anaerobic Bacteria Strains from Discarded Ruminal Contents of Nigerian Breed Cattle and Preliminary Evaluation of Its Suitability for Animal Feedstuff

Aim: The study aimed at isolation and preliminary characterization of anaerobic bacteria from a special crossbreed of Muturu and N’Dama cattle found in parts of Nigeria. Study Design: The work investigated the suitability of the isolates in in vitro fermentation of biomass and evaluated the relationship between the bacterial flora and their ability to hydrolyse lignocellulosic materials from co...

عفونتهای ناشی از باکتری Fusobacterium necrophorum و گزارشی از دیفتری گوساله

Fusobacterium necrophorum leukotoxin induces activation and apoptosis of bovine leukocytes.

Fusobacterium necrophorum, a gram-negative, rod-shaped, anaerobic bacterium, is a primary or secondary etiological agent in a variety of necrotic, purulent infections in humans and animals. Its major virulence factor is leukotoxin, a high-molecular-weight secreted protein, primarily toxic to ruminant leukocytes. In this study, bovine peripheral blood leukocytes were exposed to various concentra...

Enumeration and selective isolation of rumen spirochetes.

Enumeration by means of light microscopy showed that from 0.4 x 10(8) to 2.0 x 10(8) spirochetes were present per ml of bovine rumen fluid. Viable cell counts yielded slightly lower values, ranging from 0.1 x 10(8) to 1.2 x 10(8) spirochetes per ml of rumen fluid. The antibiotic rifampin, which served as a selective agent for rumen spirochetes, was added to agar media used in the estimation of ...