Volume 68, Issue 8 (November 2010)                   Tehran Univ Med J 2010, 68(8): 439-443 | Back to browse issues page

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Akhtardanesh B, Radfar M H, Bagheri F. A parasitological study of blood, skin, and alimentary tract of conventionally maintained laboratory mice and rat . Tehran Univ Med J. 2010; 68 (8) :439-443
URL: http://tumj.tums.ac.ir/article-1-5648-en.html
1- Department of Clinical Science, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran. , akhtardanesh@mail.uk.ac.ir
2- Department of Parasitology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran.
3- Vetreinary Student, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran.
Abstract:   (3638 Views)
Background: Efforts have been made worldwide to identify and to study parasites of laboratory animals, aiming at the achievement of proper procedures for eradication of parasitic infestations, considering the important role of these animals in scientific research. There is no sufficient data about parasitic infestations of Laboratory animals which are kept in conventional systems in Iran. In this scope, peresent study was designed to investigate the presence of ectoparasites and endoparasites in conventionally maintained laboratory rats (Rattus norvegicus) and in mices (Mus musculus).
Methods: A descriptive cross-sectional study was performed on 240 randomly selected rats and mice from two different animal houses in Kerman city, Iran. Skin scraping blood samples and alimentary tract contents of all animals were fully examined for the presence of parasitic infections.
Results: In the first animal house, Nosopsylla fasciatus (flea), Hymenolepis dimminuta, Entamoeba muris and Cryptosporidium spp. infestation were diagnosed respectively in 35.41%, 36.1%, 3.57%, and 1.25% of rat colonies but only Entamoeba muris infestation was detected in 4.58% of mice colonies. In the second animal house, 2.5% and 2% of rat and mice colonies were infected by Entamoeba muris.
Conclusion: Based to presence of asymptomatic parasitic infection in conventionally maintained laboratory animals, regular periodical samplings, precise sanitary monitoring of barrier maintained system, environment and food seem necessary in animal houses. Eradication of parasites could eliminate the confounding effects of these infections on researches and additionally decrease the risk of zoonotic disease transmission to investigators and animal house personnel's.
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Type of Study: Original Article |

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