Epidemiology of Enzootic Pneumonia in Minnesota Dairy Calves
DOI:
https://doi.org/10.21423/aabppro19926434Keywords:
Enzootic calf pneumonia, bovine respiratory disease, infectious agents, ventilation, laboratory samplingAbstract
Enzootic calf pneumonia (ECP) is one clinical manifestation of the bovine respiratory disease complex. Enzootic calf pneumonia results from a complex interaction between environmental factors, host factors, and infectious agents. The financial losses that result from ECP occur due to death loss, treatment cost, and decreased lifetime milk production. Calves that have experienced ECP have been shown to be at increased risk of culling once in the milking herd when compared to herdmates of the same age(1). Experimental studies involving the infectious agents themselves have been performed(2-9), as well as retrospective(10-16) and cohort studies(17-22). None of the current epidemiologic research has specifically targeted ECP, either through assessment of ventilation or laboratory sampling to validate morbidity or mortality.