Seroprevalence of and risk factors for Mycoplasma mycoides subspecies capri infection in small ruminants in Northern Jordan |
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| Authors: | Al-Momani Waleed Abo-Shehada Mahmoud N Nicholas Robin A J |
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| Institution: | (1) Department of Allied Medical Sciences, Al-Balqa’ Applied University, P.O. Box 19117, Al-Salt, Jordan;(2) Department of Basic Medical Veterinary Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan;(3) Department of Bacterial Diseases, Mycoplasma Group, Veterinary Laboratories Agency-Weybridge, New Haw, Addlestone, Surrey, KT15 3 NB, UK |
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| Abstract: | During the period from January 2002 to December 2003, serum samples were collected from 104 small ruminant flocks consisting
of 18 sheep flocks, 27 goat flocks, and 59 mixed flocks containing both sheep and goats in northern Jordan. Only female sheep
and goats were sampled. At least five females aged over 2 years per flock per species were sampled and examined for Mycoplasma mycoides subspecies capri using the latex agglutination test. To increase the chances of detecting positive flocks, sick or older ewes were sampled.
Specific information was obtained using a questionnaire to identify potential risk factors for M. mycoides subsp. capri seropositivity in small ruminants. The true flock-level seroprevalences of M. mycoides subsp. capri were 34%, 32%, and 38% in small ruminants (sheep and goats), sheep, and goats, respectively. Differences between flock-level
seroprevalences in sheep and goats were not significant (p = 0.7). Multivariable logistic regression analysis of 21 production and health management practices showed four to be associated
with M. mycoides subsp. capri seropositivity including flocks which were grazed and fed concentrate supplement (OR = 4.6), improper cleaning of milking
utensils (OR = 4.7), buying new animals to replace culled ones (OR = 0.3), and treating against helminths when clinical signs
of helminth infections appear (OR = 0.4). |
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