no edit summary
Line 37: Line 37:       −
===''Campylobacter fetus'' subspecies ''fetus''===
+
[[Campylobacter fetus subspecies fetus]]
 +
 
   −
*Sporadic abortion in cows and sheep
  −
*10% of ovine abortions in the UK
  −
*Enteric organism of sheep, goats and cattle; faecal-oral transmission
  −
*Ingestion during last trimester of pregnancy causes a bacteraemia
  −
*Bacteria reach the uterus
  −
*Necrotic placentitis causes late abortion, still birth or weak lambs
  −
*Sporadic abortion in cattle
  −
*Aborted lambs may have round necrotic lesions on surface of liver
  −
*Aborting ewes source of infection for vulnerable animals
  −
*Up to 20% of flock may abort
  −
*Solid immunity developed
  −
*S layer immunodominant antigen
  −
*Diagnosis: hepatic lesions in lambs; presence of organisms in foetal abomasum; isolation and identification
  −
*Treatment/control: isolate aborting ewes; destroy placenta; move other ewes to clean pasture; vaccinate flock with bacterin during outbreak and prophylactically; chlortetracycline in feed in an outbreak
       
Author, Donkey, Bureaucrats, Administrators
53,803

edits