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The effect of infection with bovine viral diarrhea virus on the fertility of cows and heifers

Author(s): Kale Mehmet | Ata A. | Yavru S. | Yapkic O. | Bulut O. | Gulay M.S.

Journal: Acta Veterinaria
ISSN 0567-8315

Volume: 56;
Issue: 5-6;
Start page: 467;
Date: 2006;
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Keywords: cow | heifer | bovine viral diarrhea virus | fertility | ELISA

In the current study, blood samples from 319 cows and heifers were studied Antibodies against BVDV infections in serum samples and BVDV antigens in leukocytes were present in 203 (148 cows and 55 heifers) and 56 (28 cows and 28 heifers) samples, respectively. Although no significant difference was detected between seropositive ŠBVDV (Ag-/Ab+)¹ and uninfected ŠBVDV (Ag-/Ab-)¹ cows and heifers at the time of the first insemination (FIT) first service age (FSA) or conception rate (CR) (p>0.05), the difference in age of seropositive and infection free cows differed significantly (p0.05). Differences between persistently infected ŠBVDV (Ag +/Ab -)¹ and uninfected cows for FIT, CR and age were statistically different (p0.05). Even though, FSA of pregnant persistently infected or uninfected heifers was not different (p>0.05) there was a difference between the age and FIT of persistently infected and uninfected cows (p
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