GENEX is your exclusive source for fertility rankings on sires when used as part of a synchronization program - SynchCheck™ rankings.
Gamal Abdel-Azim, CRI Research Geneticist, has shown that sire fertility levels differ when used in synchronization breeding programs. In fact, there can be up to a 3% increase in conception rate of some bulls when bred to synchronized females.
How to use SynchCheck™ fertility rankings: SynchCheck™ fertility rankings are set to a 100 base system, meaning a value of 100 is average. Every one point difference is then equivalent to a one percent difference in conception rate. For example, if bull A has a 102 SynchCheck™ and bull B has a 100 SynchCheck™, bull A is predicted to be 2% higher in conception rate than bull B.
Find SynchCheck™ fertility rankings in the GENEX Holstein investment guide and sire catalog. SynchCheck™ rankings are also included on individual Holstein bull web pages.
Rely on GENEX sires with
high SynchCheck™ fertility rankings to
consistently create pregnancies when
used in synchronized breeding programs.