No daughter colonies of the 4a were tested yet.
20 tested queens were mated at the mating station:
DE-4-61-1-1973 DE-4-61-3-1973 DE-4-61-5-1973 DE-4-61-10-1973 DE-4-61-13-1973 DE-4-61-16-1973 DE-4-220-1-1973 DE-4-220-3-1973 DE-4-220-5-1973 DE-4-220-10-1973 DE-4-220-13-1973 DE-4-220-16-1973 DE-8-15-26-1973 DE-8-15-27-1973 DE-8-15-28-1973 DE-8-15-29-1973 DE-8-15-30-1973 DE-8-15-31-1973 DE-8-15-32-1973 DE-8-15-33-1973
15 daughter colonies of queens mated at the mating station were tested:
DE-4-61-12-1976 DE-4-220-6-1976 DE-4-220-12-1976 DE-4-220-14-1976 DE-4-220-15-1976 DE-4-220-18-1976 DE-4-220-20-1976 DE-8-15-29-1976 DE-8-15-30-1976 DE-8-15-31-1976 DE-8-15-32-1976 DE-8-15-33-1976 DE-8-15-34-1976 DE-8-15-35-1976 DE-8-15-36-1976