No daughter colonies of the 4a were tested yet.
6 tested queens were mated at the mating station:
DE-2-176-36-2015 DE-2-176-37-2015 DE-2-176-1226-2015 DE-2-176-1227-2015 DE-2-176-1228-2015 DE-2-176-1273-2015
5 daughter colonies of queens mated at the mating station were tested:
DE-2-731-28-2017 DE-2-731-29-2017 DE-2-731-30-2017 DE-2-731-31-2017 DE-2-731-32-2017