Yazar "Bulut O." seçeneğine göre listele

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    Effects of subclinical bovine leukemia virus infection on fertility of Holstein cows and heifers
    (2007) Yavru S.; Kale M.; Ata A.; Yapkic O.; Bulut O.; Gulay M.S.
    The purpose of this study was to determine the serological prevalence of bovine leukemia virus (BLV), and describe whether there are effects of BLV infection on the fertility of dairy cattle in Burdur, Turkey. The study population was 182 clinically healthy Holstein cows (>2-years-old) and 81 heifers (17- to 20-months-old) from a commercial dairy herd in Burdur. BLV prevalence was 66.48% (121/182) and 62.96% (51/81) in cows and heifers, respectively. There were no significant differences between BLV antibody-negative and antibody-positive cows for days open (DO; P = 0.2567) or between BLV antibody-negative and antibody-positive heifers for first service age (FSA; P = 0.65). Moreover, differences in conception rates (CR) between BLV antibody-negative and antibody-positive cows or heifers were insignificant (P > 0.1). In conclusion, even though the prevalence of BLV infection in Burdur region was found to be high, no effect of BLV infection was detected for fertility.
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    First report on seroprevalence of bluetongue, border disease and peste des petits ruminants virus infections in sheep in kyrgyzstan
    (Agricultural Research Communication Centre, 2014) Yapici O.; Bulut O.; Avci O.; Kale M.; Tursumbetov M.; Yavru S.; Simsek A.
    In this study, the presence of antibodies against Bluetongue Virus (BTV), Border Disease Virus (BDV) and Peste des Petits Ruminants virus (PPRV), were evaluated for the first time in Kyrgyzstan. A total of 655 serum samples were collected from healthy sheep (Jaydara breed) from different regions of Kyrgyzstan (144 from Issik Gol region, 208 from Narin region, 189 from Talas region and 114 from Çuy region). Commercially available competitive ELISA kits were used to detect antibodies against tested samples. Seroprevalence was found to be 36.94%, 7.32% and 35.11% against BTV, BDV and PPRV infections, respectively. Significant differences in antibody prevalences were found among both BTV-BDV and BDV-PPRV groups (P< 0.001) only. This is the first report on seroprevalence of viral infections for BTV, BDV and PPRV in the Jaydara breed of sheep within Kyrgyzstan. © 2014, Agricultural Research Communication Centre. All rights reserved.
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    A serological survey of bovine herpesvirus-1 infection in beef herds in Turkey
    (2007) Duman R.; Yavru S.; Bulut O.; Kale M.
    3001 beef serum samples collected from 25 herds selected from central and southern regions of Turkey for the presence of BHV-1 infections by serum neutralization test. The results revealed that 78.26% of the herds from central Turkey and all of the herds from southern Turkey had seropositive animals at titres of 1:4 and above. The prevalence of BHV1 infection was found as 35.08% in central Turkey and 38.75% in southern Turkey. In conclusion, this was a decrease in prevalence of BHV-1 infection in central and southern Turkey in beef population.