EN
Attempts of using stallions naturally infected with Equine arteritis virus in reproduction The objective of the studies was to check both in vitro and vivo the use in reproduction of convalescent stallions of semen free from the Equine arteritis virus (EAV). The examinations were done on 92 stallions from the stud К in which sera of 83.2% of animals were free from antibodies to EAV. Three stallions used for mating in 1993 were seropositive. Attempts to isolate the EAV from semen were performed on RK-13 and Vero cell cultures. From the semen of one stallion a virus identified as AEV by the direct immunofluorescence test was isolated. As for the two remaining convalescent stallions with negative results of the laboratory test for EAV, semen was examined for the EAV transfer on four fully susceptible mares.