12 daughter colonies of the 4a were tested:
DE-4-252-11-2004 DE-4-252-12-2004 DE-4-252-15-2004 DE-4-252-16-2004 DE-4-252-17-2004 DE-4-252-18-2004 DE-4-252-19-2004 DE-4-252-20-2004 DE-4-252-21-2004 DE-4-252-23-2004 DE-4-252-24-2004 DE-4-252-25-2004
9 tested queens were mated at the mating station:
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
3 daughter colonies of queens mated at the mating station were tested:
DE-4-252-47-2007 DE-4-252-48-2007 DE-4-252-49-2007