9 daughter colonies of the 4a were tested:
DE-4-252-1-2005 DE-4-252-2-2005 DE-4-252-3-2005 DE-4-252-4-2005 DE-4-252-5-2005 DE-4-252-6-2005 DE-4-252-10-2005 DE-4-252-11-2005 DE-4-252-12-2005
19 tested queens were mated at the mating station:
DE-4-252-1-2006 DE-4-252-2-2006 DE-4-252-3-2006 DE-4-252-4-2006 DE-4-252-5-2006 DE-4-252-6-2006 DE-4-252-10-2006 DE-4-252-11-2006 DE-4-252-12-2006 DE-4-271-1-2006 DE-4-271-2-2006 DE-4-271-3-2006 DE-4-271-4-2006 DE-4-271-5-2006 DE-4-271-6-2006 DE-4-271-7-2006 DE-4-271-8-2006 DE-4-271-9-2006 DE-4-271-10-2006
10 daughter colonies of queens mated at the mating station were tested:
DE-4-252-1-2009 DE-4-252-2-2009 DE-4-252-3-2009 DE-4-252-4-2009 DE-4-252-5-2009 DE-4-252-6-2009 DE-4-252-7-2009 DE-4-252-8-2009 DE-4-252-9-2009 DE-4-252-10-2009