Table 1.

Breed and sex distribution of dogs in Study 1.

Breed	Number of dogs	Sex of dogs (CM/M/SF/F)
Labrador retriever	11	3/4/3/1
Golden retriever	3	2/0/1/0
Labrador mix	3	3/0/0/0
Greater Swiss mountain dog	2	0/0/0/2
Australian cattle dog	1	0/0/0/1
Australian shepherd mix	1	0/0/1/0
Basset hound	1	1/0/0/0
Beagle mix	1	1/0/0/0
German shepherd	1	1/0/0/0
Mastiff	1	0/0/1/0
Newfoundland	1	0/0/1/0
Polish lowland sheepdog	1	1/0/0/0
Springer spaniel	1	0/1/0/0
Total	28	12/5/7/4

CM= castrated male, M= male, SF = spayed female, F = female