Breeding Recommendation Charts for CM / SM

These breeding guidelines are subject to change due to evolving insights.

As of January 1, 2016, the age limit has been raised from 2.5 years to 3 years, and the same grading codes are now used in England and the Netherlands. The possible combinations of male and female have remained the same.

Click HERE for the most recent version (as of January 1, 2016).

Click HERE for the version used from 2012 through 2015.

Click HERE for the system used before 2012. (The old system with letters)