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After several years of promoting the use of Immunity+ sires, data is coming in from a variety of large herd sources. The compilation of average rates of decline one can expect from the daughters of Immunity+ sires is represented in the table below. These numbers have been submitted for publication in a scientific journal – they represent real numbers and from just the first generation of selection. Imagine what can be accomplished in improving disease resistance when we have selected for many generations, much like we have for Production or Conformation?
Immunity+, it is the real deal!

REAL WORLD DATA – 35 COMMERCIAL DAIRIES
(~30,000 cows, ~75,000 heifers)
HEALTH EVENT IMMUNITY+ PREVALENCE NON-IMMUNITY+ PREVALENCE IMMUNITY+ REDUCTION
MASTITIS 28.5% 31.7% 10.0%
PERSISTENT MASTITIS 4.4% 5.3% 17.0%
LAMENESS 21.1% 24.0% 12.1%
MISC. ILLNESS 5.9% 6.5% 9.2%
MORTALITY 4.8% 6.0% 20.0%
HEIFER PNEMONIA 4.8% 9.8% 2.1%
HEIFER DIARHEA 5.4%% 5.7% 5.3%
HEIFER MORTALITY 7.7% 9.2% 16.3%