Cattle producers preparing to work spring-born calves should be taking steps now to protect their animals from the respiratory diseases, infectious bovine rhinotracheitis and bovine viral diarrhea virus.
By vaccinating calves now, the first vaccination against IBR and BVDV takes place at a time when there is comparatively less stress on a calf.
“This gives the animal an excellent opportunity to begin the development of cell-mediated immunity,” said Glenn Selk, Oklahoma State University Cooperative Extension cattle reproduction specialist. “The calf then is re-vaccinated at weaning time.”
Selk cites the July 2008 issue of the Journal of American Veterinary Medical Association, which details a study comparing a “calf-working” vaccination program with the traditional “pre-weaning” vaccination schedule.
OSU veterinary medicine scientists, in cooperation with scientists at the Samuel Roberts Noble Foundation in Ardmore, studied the timing of modified-live virus vaccinations in beef calves.