Prevalence and risk factors associated with bovine viral diarrhea virus infection in dairy herds in Jordan |
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| Authors: | A Q Talafha S M Hirche M M Ababneh A M Al-Majali M M Ababneh |
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| Institution: | (1) Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan;(2) Department of Basic Veterinary Medical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan;(3) DVM, Diplomate American College of Theriogenologists, Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan |
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| Abstract: | A cross-sectional study was carried out to determine the seroprevalence and to identify risk factors associated with bovine
viral diarrhea virus (BVDV) infection in 62 non-vaccinated dairy herds (671 cows) in Jordan between January and June 2007.
Information regarding herd management was recorded through a personal interview with farmers. Antibodies against BVDV were
detected using an indirect ELISA test. Chi-square analysis and multivariable logistic regression model were used to identify
risk factors for BVDV seropositivity. The true prevalence of antibodies against BVDV in individual cows and cattle herds was
31.6% and 80.7%, respectively. The seroprevalence of BVDV in medium and large size herds was significantly higher than that
in smaller herds. There was no significant difference in BVD seroprevalence between different age groups. Random-effects logistic
regression model revealed two major factors associated with seropositivity to BVDV; exchange of visits between adjacent farm
workers and not isolating newly purchased animals before addition to the herd. The seroprevalence of BVDV in cows located
in the northern Jordanian governorates was significantly higher than that in other studied governorates. Results of this study
indicated that BVDV is highly prevalent in Jordan and BVDV infection could be controlled by livestock-trade control, and applying
strict biosecurity measures in the dairy farms. |
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| Keywords: | Bovine viral diarrhea virus Jordan Risk factors Seroprevalence |
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