A slaughterhouse and bacteriologic study on hepatic abscesses of slaughtered sheep in Urmia abattoir

Subject Areas : Veterinary Clinical Pathology

عبداله Araghi – Sooreh ¹ , علی Hassanpour ² , امیر Salimpour ³

1 - Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
2 - Department of Clinical Sciences, Faculty of Veterinary Medicine, Tabriz Branch, Islamic Azad University, Tabriz, Iran
3 - Graduate of Veterinary Medicine, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran

Received: 2010-11-03 Accepted : 2011-05-05 Published : 2011-02-20

Keywords: Sheep, Urmia, slaughterhouse, Hepatic abscess, bacteriology,

Abstract :

Hepatic abscesses have a major economic impact on the stock-breeding industry because of liver condemnation and reduced animal performance and carcass yield. This research was aimed to determine occurrence and bacterial causes of hepatic abscesses of sheep slaughtered at Urmia abattoir.Post-mortem examination of 3260 sheep showed that 48 (1.47%) exhibited hepatic abscesses. Twenty six (1.99%) abscesses were found in females and 22(1.12%) abscesses were found in males. Most of the abscesses were found in the right lobes (45.8%) and in diaphragmatic surfaces (47.9%) of livers. According to presence of abscesses, there was significant difference between different liver surfaces (p<0.05). All abscesses were cultured for aerobic and anaerobic bacteria. Seventy one isolates from 6 genera were identified. The following bacteria were isolated: Fusobacterium necrophorum (14 in pure culture and 9 in mixed culture); Corynebacterium pseudotuberculosis (5 in pure culture and 14 in mixed culture); Arcanobacterium pyogenes (4 in pure culture and 10 in mixed culture); Escherichia coli (2 in pure culture and 5 in mixed culture); Pseudomonas aeruginosa (4 in mixed culture) and Staphylococcus spp. (4 in mixed culture). The results of this study showed that F.necrophorum is the most important bacterial cause of hepatic abscesses (49.7%) and C.pseudotuberculosis is the second important bacterial cause of hepatic abscesses (39.6%) in sheep in Urmia.

References:

1. قدردان مشهدی، ع.، قربانپور، م.، راسخ، ع. و کاظمی، ج. 84-1383. تعیین میزان فراوانی آبسه های کبدی و علل باکتریایی آن در گاوان کشتار شده در کشتارگاه اهواز. مجله علمی دانشکده دامپزشکی، دانشگاه شهید چمران اهواز، سال هشتم، شماره نه-ده، صفحات: 60 -53.


2. لطف­اله­زاده، ص.، مخبر دزفولی، م.ر.، تاجیک، پ.، عبدلی، ع. و شریف زاده، ع. 1383. مطالعه باکتریولوژیک
   آبسه­های کبدی در گاوهای کشتار شده در کشتارگاه شهرستان شهر کرد. مجله دانشکده دامپزشکی دانشگاه تهران، سال شصتم، شماره چهار، صفحات: 373-369.
   
   
   1. Berg, J.N. and Scanlan, C.M.  1982. Studies of Fusobacterium necrophorum from bovine hepatic abscesses: biotypes, quantitation, Virulence and antimicrobial susceptibility. Am. J. Vet. Res. 42:1580-1586.
   
   
   2. Lechtenberg, T.G., Nagaraja, T.G. and Leipold, H.W.  1988.  Bacteriologic and histologic studies of hepatic abscesses in cattle. Am. J. Vet. Res. 49:58-62.
   
   
   3. Maxie, M.G.  2007. Jubb, Kennedy and Palmer's Pathology of Domestic Animals. Saunders, Edinburgh, Fifth Edition, Volume 2. p: 353-4.
   
   
   4. Marsh, H.  1944.  Necrobacillosis of the rumen in young lambs. J. Am. Vet. Med. Assoc. 104:23-25.
   
   
   5. Nagaraja, T.G. and Chengappa, M.M.  1998.  Liver abscesses in feedlot cattle: a review. J. Anim. Sci. 76 (1):287-298.
   
   
   6. Nagaraja, T.G., Beharka, A.B., Chengappa M.M., Carroll, L.H., Raun, A.P., Laudert, S.B. and Parrott, J.C. 1999.  Bacterial flora of liver abscesses in feedlot cattle fed tylosin or no tylosin. J. Anim. Sci. 77(4):973-8.
   
   
   7. Newsom, I. E.  1983. A bacteriologic study of liver abscesses in cattle. Vet. Microbiology. 63:232-233.
   
   
   8. Quinn, P.J., Carter. M.E., Markey, B.K. and Carter, G.R. 1994. Clinical Veterinary Microbiology. Wolfe, London. p: 118-327.
   
   
   9. Radostitis, O.M., Gay, C.C., Hinchcliff, K.W. and Constable, P.D.  2007.  Veterinary Medicine, A text book of the disease of cattle, horses, sheep, pigs and goats. Saunders Elsevier, Edinburgh, Tenth Edition.  p: 395.
   
   
   10. Scanlan, C.M. and Edward, J.F.  1990.  Bacteriologic and pathologic studies of hepatic lesion in sheep. Am. J. Vet. Res. 51:365-366.
   
   
   11. Shedon, I. M.  1995.  Hepatic abscess due to fascioliasis. Vet. Rec. 4:304.
   
   
   12. Santa Rosa, J., Johnson, E.H., Alves, F.S.F. and Santos, L.F.L.  1989.  A retrospective study of hepatic abscesses in goats: pathological and microbiological findings. British. Vet. J. 145(1):73-76.
   
   
   13. Tadayon, R.A., Cheema, R.H. and Muhammad, S.I.  1980. Microorganisms associated with abscesses of sheep and goats in the south of Iran. Am. J. Vet. Res. 41:798-801.
   
   

3.       Al-Qudah, K.h. and Al-Majali, A.  2002. Bacteriologic studies of liver abscesses of Awassi sheep in Jordan. Small Rumin. Res.  47(3):249-253.

8.       Nagaraja, T.G. and Lechtenberg,  K.F.  2007. Liver abscesses in feedlot cattle. Vet. Clin. North. Am. Food Anim. Pract. 23(2):351-369.

17.    Tadepalli, S., Narayanan, S.K., Stewart,G.C. , Chengappa, M.M. and Nagaraja , T.G.  2009.  Fusobacterium necrophorum: a ruminal bacterium that invades liver to cause abscesses in cattle. Anaerobe. 15(1-2):36-43.

18.    Tan, Z.L., Nagaraja, T.G. and Chengappa, M.M.  1996.  Fusobacterium necrophorum infections: virulence factors, pathogenic mechanism and control measures. Vet. Res. Commun. 20(2):113-40.