CLINICAL-EXPERIENCES IN THE USE OF PARAMU NIDUCERS IN CATTLE DURING ANIMAL EXHIBITIONS

[BR positive cattle after vaccination with dead vaccine may excrete IB R/IPV (BHV-1) virus when facing a stress situation. On cattle exhibiti ons the share of such individuals may vary between 8 and 34 %. Since 1 988 in order to protect animals against infections IBR negative cattle and cows on 7 regional, one national and one international exhibition s were treated with Duphamun(R) and Baypamun(R), respectively. After r eturning of animals to their owner [BR outbreaks were confirmed in 8 f oms. This is low incidence compared with preeding exhibitions that whe re held in the same place or elsewhere. For protection against BHV-1 v irus infections the use of a para-immunity-inducer is recommended. Nev ertheless strict quarantine and following serological investigations a re essential.