Research with Express® Vaccines
How do Express Verified® calves do?
In a research study1 using a database of more than a million calves going into Canadian feedlots, it was possible to compare how well Express Verified® calves did. Express Verified® calves born between 2007 and 2014 were compared to other calves in the same pen and to similar calves in other pens where there were no Express Verified® calves.
In pens of ‘high risk’ calves, the Express Verified® calves were less likely to be treated and less likely to die from all causes, including bovine respiratory disease (BRD) than either of the other two groups of calves. Even in pens of ‘low risk’ calves, Express Verified® calves did better. They were less likely to be pulled than calves in other pens and less likely to die from BRD than calves in other pens.
Express Verified® calves stood out even when you couldn’t fill the entire pen with Express Verified® calves. In most pens in the study, Express Verified® calves made up less than 10% of the pen.
To learn more about how well Express Verified® calves do in the feedlots – please contact one of our Express Verified® experts.
We do research on Express® to answer practical questions we get asked.
- How long after you vaccinate do you get protection against BVD?
Protection develops within 3 to 5 days after vaccination2.
- How long after you vaccinate do you get protection against IBR?
Protection develops within 1 to 3 days3.
When I vaccinate my bulls, does Express® protect their testicles from being infected with
Yes, when vaccinated bulls were exposed to BVD virus, vaccination prevented their testicles from being infected4.
To learn more about our research and how Express® Vaccine can work in your herd– please contact one of our Express Verified® experts.
1Data on file with Boehringer Ingelheim (Canada) Ltd, 2016.
2Brock KV et al. Onset of protection from experimental challenge with Type 2 bovine viral diarrhea virus following vaccination with a modified-live vaccine. Vet Therapeutics 2007;8(1):88-96.
3Fairbanks KF et al. Rapid onset of protection against infectious bovine rhinotracheitis with a modified-live virus multivalent vaccine. Vet Therapeutics 2004;5(1)17-25.
4Given MD et al. Safety and efficacy of vaccination of seronegative bulls with modified-live, cytopathic bovine viral diarrhea viruses. Theriogenology 2009;71(6):975-83.