EPIZOOTIC SITUATION ON PORCINE REPRODUCTIVE-RESPIRATORY SYNDROME "VOSTOCHNY" PIG FARM
PRRS virus is wide spread all over the world. Russian Federation is no exception. Unfortunately the disease causes serious damage to pig production, manifesting itself in the form of abortions, weak progeny and respiratory pathologies. The studies were conducted on different age groups of pigs (piglets, rearing, sows), belonging to the pig farm "Vostochny" in Zavyalovsky district, the Udmurt Republic. For serological studies the ELISA test kits manufactured by "Vetbiohim" and "Idexx" were used. Analysis of the epizootic situation showed that the farm had been infected with PRRS virus earlier. Half of the studied 20-30-days old piglets had PRRS specific antibodies. Later, this figure increased and by the time when the piglets were 120-days old 100 % of animals had specific antibodies. In the study of older age groups, over 90 % of the repair and sows infected with PRRS virus. At individual determination of the antibody titers in the studied animals, the figures become dissimilar. In piglets at the age of20-30 and 40-60 days showed no reduction of antibody titers, which is expected as the colostral period ends. Among sows both sows with high and low titer antibodies were registered. All this allows to make a conclusion about the serologically unstable herd.