Prevalence of infectious bovine rhinotracheitis in cows with repeat breeder in ergani district of diyarbakir.

In this thesis, prevalence of Infectious Bovine Rhinotracheitis (IBR) was studied in repeat breeder cows in Ergani district of Diyarbakir province. Blood samples were collected from 108 cows at 3-10 years old. The presence of IBR in the samples was determined using Enzyme Linked Immunosorbent Assay (ELISA) antibody kits.The results of the ELISA tests indicated that 52 (48.15%) of 108 animals were seropositive and others (51.85%) were seronegative. Although there was no significant difference between the groups in the distribution of results by breed, and age, IBR seropositivity in 7 years (86.67%) and older animals group were found significantly higher (P<0.01).As a result, IBR seropositivity from cows with repeat breeder is high and, this ratio was more increased in the older animals. Therefore, it is concluded that the preventative measures should be taken against IBR to improve the efficiency of progeny in the region.Keywords: Repeat breeder, IBR, Cow.