Field trial of antibody response to inactivated bacterial vaccine in young Holstein calves: influence of animal health status

Abstract

Bovine respiratory disease (BRD) is one of the primary causes of death in young calves. Vaccination against infection by the common bacteria causing BRD is possible; however, the physical condition of the young calves that enables antibody production when stimulated by early immunisation remains to be elucidated.

Keywords

• early vaccination
• bovine respiratory disease
• maternal antibody
• nutritional status
• oxidative stress