17 daughter colonies of the 4a were tested:
CH-51-54-6152-1998 CH-51-54-6153-1998 CH-51-54-6154-1998 CH-51-54-6512-1999 CH-51-54-6513-1999 CH-51-54-6514-1999 CH-51-54-6515-1999 CH-51-54-6516-1999 CH-51-54-6517-1999 CH-51-113-6223-1998 CH-51-113-6224-1998 CH-51-113-6225-1998 CH-51-113-6544-1999 CH-51-113-6545-1999 CH-51-113-6546-1999 CH-51-113-6547-1999 CH-51-113-6548-1999
12 tested queens were mated at the mating station:
CH-51-108-6642-1999 CH-51-108-6643-1999 CH-51-108-6644-1999 CH-51-108-6645-1999 CH-51-108-6646-1999 CH-51-108-6647-1999 CH-51-110-7067-1999 CH-51-110-7068-1999 CH-51-110-7069-1999 CH-51-110-7070-1999 CH-51-112-6480-1999 CH-51-112-6481-1999
7 daughter colonies of queens mated at the mating station were tested:
CH-51-110-7396-2001 CH-51-110-7736-2001 CH-51-110-7737-2001 CH-51-110-7738-2001 CH-51-110-7739-2001 CH-51-110-8612-2002 CH-51-110-8613-2002