THE ASSOCIATION BETWEEN SEROLOGICAL TITERS IN INFECTIOUS BOVINE-RHINOTRACHEITIS VIRUS, BOVINE VIRUS DIARRHEA VIRUS, PARAINFLUENZA-3 VIRUS, RESPIRATORY SYNCYTIAL VIRUS AND TREATMENT FOR RESPIRATORY-DISEASE IN ONTARIO FEEDLOT CALVES
- 1 July 1986
- journal article
- research article
- Vol. 50 (3) , 351-358
Abstract
A seroepidemiological study of the association between antibody titers to infectious bovine rhinotracheitis, parainfluenza-3, bovine virus diarrhea and bovine respiratory syncytial viruses, and treatment for bovine respiratory disease was conducted. A total of 322 calves from five different groups were bled on arrival, then one month later all cases (cattle treated for bovine respiratory disease) were rebled together with an equal number of controls (cattle not treated for any disease). Titers to these viruses varied significantly from group to group. Based on seroconversion, infectious bovine rhinotracheitis virus was active in 4.4%, bovine virus diarrhea virus in 24%, parainfluenza-3 virus in 69.5% and bovine respiratory syncytial virus in 71.3% of the cattle. Cattle with low titers to infectious bovine rhinotracheitis and/or bovine respiratory syncytial viruses on arrival, were at increased risk of subsequent treatment for bovine respiratory disease. Treated cattle also had significantly greater increases to parainfluenza-3 and/or bovine virus diarrhea viruses than control calves. Treatment rates varied considerably from group to group and were not strongly correlated with weight gain in the postarrival period.This publication has 15 references indexed in Scilit:
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