Seroepidemiological examination of contagious diseases in breeding rams – preliminary examinations
2011
Bugarski, D., Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia) | Savic, S., Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia) | Grgic, Z., Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia) | Vidic, B., Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia) | Milovanovic, A., Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia) | Barna, T., Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia)
Contagious diseases of rams play an important role in the epizootiology of diseases in sheep breeding. The trade of rams or exchange is common between flocks, therefore this is one of the ways for the contagious diseases to spread among the flocks, especially since a considerable number of breeders does not comply with the recommendations for health check of rams. In the region, where the research was carried out, for many years Brucellosis caused by B. melitensis and B. abortus was not diagnosed. These examinations have been carried out the years according to the State Monitoring Program. A total of 88 rams originating from 32 flocks in 19 settlements was examined. The avaerage age was 3.1 +/- 1.43 year. The examined rams were of Merinolanscaf breed (43), Ile-de-France breed (20), Suffolk breed (9), Tsigai (6), Charollais 3 and crossbreed 7 (7.95%). The number of rams raised on pastures was 24 (27.27%), and the animals were on the pastures as long as weather conditions remained favorable. the other wee in the stables with or without yards. Serology methods were applied in examination of Brucellosis caused by Brucella ovis (ram epididimitis), leptospirosis, Q fever, chlamidiosis and maedi-visna. The highest percentage of seropositive rams was against maedi-visna (6.81%), than chlamidiosis (5.68%), B. ovis (3.41%) and leptospirosis (1.14%). In rams that most of the year spends on pastures, the prevalence was the highest (41.67%), while in the animals raised in stables or enclosed area it was 7.8%. Further studies are needed to determine the presence of infectious diseases in different breeds and different systems of animal breeding in order to determine risk factors for disease transmission between the flocks.
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