Objective: To determine occurrence and also bacterial causes of hepatic abscess of sacrificed cattle in shahrekod abattoir.
Design: Cross Sectional study.
Animals: Five hundreds sacrificed cattle.
Procedure: During this study inspection of 500 sacrificed cattle for presence of hepatic abscess was carried out in slaughter house. After observing the hepatic abscess, animal’s sex, age, production, pregnancy and also abscess
characterizations (number, size, location), recorded and whole abscess was dissected from the liver and transferred to the laboratory . Aerobic, anaerobic and microaerophilic bacterial cultures from hepatic abscesses were carried out
using standard methods. Statistic analysis: Chi- Square statistical test. Results: Thirty three cattle (6.6%) out of 500 inspected sacrificed cattle had hepatic abscess, from which 18 abscesses were in females (54.5%) and 15 abscesses were in male (45.5%). Twenty three livers out of 33 infected livers had only one abscess (69.69%) and 10 livers had 2 or more abscesses (30.30%). Fusobacterium necrophorum was isolated as unique bacterial cause of 21 hepatic abscesses (63.63%) and Arcanobacterium pyogenes was isolated from only 9 abscesses (27.27%). Discussion: The results of the present study showed that F necrophorum is the most important bacterial cause of
hepatic abscesses in cattle in shahrekord. Furthermore Arcanobacterium pyogenes is the second important bacterial cause of hepatic abscesses