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Healthier cows with fewer cases of mastitis, metritis, and respiratory disease
Lower vet and treatment costs
Improved fertility and longevity, keeping cows in your herd longer
More profit, with gains that build every generation
By monitoring immunity in your herd, you’re not just treating disease — you’re preventing it.
PNEUMONIA
Immunity+® & Pneumonia
Pneumonia (bovine respiratory disease, or BRD) is a major cause of illness, death, and lost performance in dairy calves and youngstock, with costs that can follow animals into adulthood through reduced growth, fertility, and milk production.
Estimated Cost of Pneumonia/Calf Case:
$100 to $350+ per case
Mild case: ~$100–$150
Severe or chronic case: $250–$350+
How Immunity+ Helps Fight Pneumonia- Better Immune Recognition & Defense
- HIR animals mount stronger, faster immune responses against pneumonia-causing viruses and bacteria. This leads to:
- Fewer clinical cases
- Less lung damage
- Lower mortality and culling risk
- Improved Vaccine Response
- HIR animals respond better to vaccines, producing:
- Higher antibody titers
- More effective cellular Immunity+
- This makes pneumonia vaccines (e.g. for IBR, BRSV, BVD) more effective in Immunity+ animals, especially calves in high-risk environments.
- Reduced Antibiotic Use
- Because of lower disease rates and better recovery, Immunity+ animals:
- Require fewer antibiotic treatments
- Have shorter recovery times
- Contribute to reduced antimicrobial resistance
- Commercial herds using Immunity+ have seen significant drops in BRD treatments and related costs.
- Stronger Calves From the Start
- Calves from Immunity+ sires are:
- Better protected against pneumonia
- More likely to thrive in challenging conditions (e.g. group housing, transport, weaning)
- Less prone to chronic lung damage that affects long-term growth and production
Summary: Semex’s Immunity+ helps fight pneumonia by genetically improving the immune system’s ability to recognize, respond to, and recover from respiratory infections. Cattle with this trait are more resilient, require fewer treatments, and perform better in challenging environments — especially during the calf and weaning stages.
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