25 daughter colonies of the 4a were tested:
DE-15-17-1-2010 DE-15-17-4-2011 DE-15-17-5-2011 DE-15-17-7-2011 DE-15-17-9-2011 DE-15-17-13-2011 DE-15-17-16-2011 DE-15-17-17-2011 DE-15-17-18-2011 DE-15-17-19-2011 DE-15-17-21-2011 DE-15-17-22-2011 DE-15-17-30-2011 DE-15-17-38-2010 DE-15-17-45-2010 DE-15-17-49-2010 DE-15-17-51-2010 DE-15-17-52-2010 DE-15-17-55-2010 DE-15-17-56-2010 DE-15-17-58-2010 DE-15-17-59-2010 DE-15-17-65-2010 DE-15-17-70-2010 DE-15-17-71-2010
15 tested queens were mated at the mating station:
DE-15-17-1-2013 DE-15-17-4-2013 DE-15-17-5-2013 DE-15-17-6-2013 DE-15-17-7-2013 DE-15-17-8-2013 DE-15-17-12-2013 DE-15-17-15-2013 DE-15-17-16-2013 DE-15-17-20-2013 DE-15-17-25-2013 DE-15-17-28-2013 DE-15-17-30-2013 DE-15-17-32-2013 NL-55-12-24-2013
3 daughter colonies of queens mated at the mating station were tested:
NL-55-12-7-2015 NL-55-12-14-2015 NL-55-12-15-2015