alexa Histopathological Study of Haemonchus contortus in Herrik Sheep Abomasum | OMICS International | Abstract
ISSN: 2155-9597

Journal of Bacteriology & Parasitology
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Research Article

Histopathological Study of Haemonchus contortus in Herrik Sheep Abomasum

Aliasghar Tehrani1, Javad Javanbakht2*, Meysam Jani3, Farhang Sasani2, Amirali Solati4, Mojtaba Rajabian3, Farshid Khadivar3, Hamid Akbari5 and Mohammadreza Mohammadian3

1Department of Pathology, Faculty of Veterinary Medicine, University of Urmia, Urmia, Iran

2Department of Pathology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran

3Graduate Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran

4Department of Veterinary Medicine, Islamic Azad University, Saveh branch, Saveh, Iran

5Department of Clinical Science, Faculty of Veterinary Medicine, University of Urmia, Urmia, Iran

*Corresponding Author:
Dr. Javad javanbakht
Department of Pathology
Faculty of veterinary Medicine
University of Tehran, Tehran, Iran
Tel: +989372512581
Email: [email protected]

Received date: May 02, 2012; Accepted date: June 13, 2012; Published date: June 19, 2012

Citation: Tehrani A, Javanbakht J, Jani M, Sasani F, Solati A, et al. (2012) Histopathological Study of Haemonchus contortus in Herrik Sheep Abomasum. J Bacteriol Parasitol 3:144. doi: 10.4172/2155-9597.1000144

Copyright: ©2012 Tehrani A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Hemonchosis is a very common disease in small ruminants caused by Haemonchus contortus, a blood sucking parasite causing anaemia that may be fatal particularly to young animals. The present study was conducted to determine the prevalence of Haemonchus contortus in slaughtered sheep’s at Urmia abattoir located in the North West of Iran. A total of 2421animals were slaughtered and examined from July 2010 to July 2011 in Urmia abattoir. In case of sheep, 225 out of 2421 were positive and prevalence of Haemonchus contortus infestation was 9.3%. Sex wise prevalence of Haemonchus contortus in sheep was 33.08% (76/229) in male and 66.22% (149/225) in female. The females indicated significantly (P<0.05) higher prevalence (66.22%) as compared to males (33.08%). The highest prevalence was recorded in the spring (April) and the lowest was in summer (July), respectively. On microscopic examination, infiltration of mononuclear cells and eosinophils in gastric glands, periglandular hyperemia and hemorrhage, mucous gland hyperplasia, connective tissue proliferation and necrosis was observed. Also, in mixed abomasal infection with Haemonchus and Ostertagia species, mucosal hyperplasia and increased mucous glands and sometimes cystic glands were seen. Statistical analysis using SPSS software, and chi-square test, demonstrated a non-significant difference between ages and abomasal pH values of infected and healthy sheep (p<0.05). But the difference between sexes, seasons and abomasal lesions was significant (p>0.05).


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