Ispitivanje prisustva antitela protiv konjskog herpesvirusa-1 u krvnom serumu ždrebadi pre i nakon uzimanja kolostruma / Investigations on the presence of antibodies against equine herpesvirus-1 in blood serum of foals, prior to and after colostrum intake
2015
Lauš, Saša (Privatna veterinarska stanica Praxis veterinaria, Vršac (Srbija)) | Spasojević-Kosić, Ljubica (Poljoprivredni fakultet, Novi Sad (Srbija). Departman za veterinarsku medicinu) | Lazić, Sava (Naučni institut za veterinarstvo Novi Sad, Novi Sad (Srbija)) | Trailović, Dragiša (Fakultet veterinarske medicine, Beograd (Srbija))
The titer of specific antibodies against equine herpesvirus-1 in blood serum was tested in two groups of mares and their foals. The first group consisted of 12 mares, Standardbred and Serbian Trotter breed, who were vaccinated against equine herpesvirus-1 and 4 in the 5th , 7th and 9th month of pregnancy. On the contrary, 12 mares from the second group, of Lipizzaner breed, were not vaccinated. The mares’ blood samples for antibodies titer investigation were taken 30, 15 and 7 days before the expected partus, then immediately after the partus, while their foals’ blood samples were taken immediately after foaling, then just before colostrum intake, and finally 1, 2, 3 and 7 days later. The titer of antibodies against equine herpesvirus-1 was tested by the method of virus - neutralization, on microtiter plates with constant dose of the virus and serial double dilutions of the serum. In unvaccinated mares, titer of antibodies against equine herpesvirus-1 was either low or not present, but on the contrary, in the vaccinated ones the antibodies titer ranged from 1:32 to 1:256. In the foals originating from both vaccinated and unvaccinated there were not found specific antibodies in the serum before colostrum intake. After the colostrum intake, the values of specific antibodies against equine herpesvirus-1 significantly increased in the foals originating from the vaccinated mares, and ranged from 1:8 to 1:32.
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