News / Blog

Top Mccutchen son joins Immunity+™ Lineup
July 16, 2014

Guelph, Ontario – No matter your management preference, maintaining a healthy herd of profitable and efficient cows is challenging. Semex’s patented Immunity+™ sires have a naturally high immune response, and by using them you can improve your herd’s overall health and longevity.

Immunity+ sires are those possessing an extremely high immune response rate, with
only one in 10 bulls qualifying. Based on the extensive research of high immune
females by Dr. Bonnie Mallard and her colleagues at the University of Guelph, and by
applying genetic transmitting principles that go with a 25% heritable trait, we can
estimate that Immunity+ sires’ daughters will have 4-8% less disease incidence.

Recently released Genomax™ sire and the world’s #3 GTPI McCutchen son,
0200HO06639 Stantons Pulsar now adds Immunity+ status to his impressive resume.
Already a HealthSmart™ and Robot Ready™ sire, Pulsar’s impressive statistics rank
him as the #12 GTPI sire on Holstein USA’s Top 100 Genomic Young Bull listing! With a +2541 GTPI, 816 NM$, +2.3 DPR and +6.2 PL and solid +3.62 PTAT and +3.21 UDC, Pulsar is Semex’s #4 GTPI sire, our #3 GLPI sire (#10 GLPI overall) and the #3
Immunity+ sire in the world!

Ask your Semex representative today about Pulsar or any of Semex’s sires in the
Immunity+ lineup today! For additional information on Semex, Genetics for Life,
Immunity+, Genomax™ or any of Semex’s products or services visit


Summer 2018