بررسي سرولوژي آلودگي به ويروس IBR در گاوداري هاي استان چهارمحال و بختياري

A serological survay on bovine rhinoteracheitis virus infection in Chahar Mahal Bakhtiary province

The most important purposes of this research were determining the rate of infection publicity and variant interference rate such as age, sex, health management and other environmental factors. In this research we tested 874 serum samples were taken from different township of Caharmahal Bakhtiary province in Iran. All of those samples were tested in serum neutralization test (SN). Infection rate of whole province was 47. 68%. Comparison between age groups showed that there was the lowest infection rate in 0-1 years old 17.5% and the cows had 6-7 years old had the most infection rate 77.5. This means that increasing in age causes the increase in rate of infection. There is the least infection rate (40.5%) in summer and the most infection rate (51.25%) in winter. The infection rate in cows which had regular vaccination programme were 46.6%, and these who didnʹt have a regular vaccination programme were infected about 48.5% and the infectoin in males were 37.5% and in females 47.4%. The infection rate in cows which had abortion were 65.5% and those who hadnʹt abortion were 46.7% Statistic analysis of these data shown that there was a significant difference between, increasing of age IBR infection with there wasnʹt any singificant difference between IBR infection with vaccination, sex and health management.