تعيين ميزان عفونت پستي ويروسي درگاوداري هاي شهرستان شهركرد

The determination of pestivirus infection on cattle in Shahr-e-Kord township.

The most important point considered in this research was determining the degree of infection caused by B VD virus and also examining the intervention of influential factors in it. The study was conducted during the time between winter 1380 and summer 1381 on 270 whole blood samples collected from cows living in different areas of Shahr-e-Kord township. After performing Immuno Capture ELISA test,it was found out that 17 cows out of 270 (%6.29) showed positive reaction. The degree of infection in the male sex was estimated %0 and in females %6.58. %8.57 of the cows which had previous record of respiratory problems were diagnosed positivety the ELISA test. The degree of pestivirus infection in 107 female cows which had previous abortion record was equal to %8.41.7 cows out of 100(%7) which had the previous permanent diarrhea record were positive. %28.57 of cows having close contact with sheep had Pestivirus persistent infection. The least degree of infection was estimated %4.54 for the group above 5 years old and the largest degree of it for under 12 month old group was estimated %8.10 of infection. The statistical analysis of the data was determined by Chi-Squar and Fisher exit test. There existed a meaningful difference between the degree of Pestivirus infection in cows and the sex, previous record of abortion, permanent dianhea and the cows close contact with the herd of sheep.