Because only approximately 50% of the dogs were accustomed to human handling, dogs were grouped (no more than 2 per group) and kenneled by behavior toward the other dogs for 2 weeks to acclimate to other dogs and the presence of humans. Dogs ranged in age from 6 months to 4 years, based strictly on dental wear and condition and body condition score
(BCS) ranged from 2 to 5 (maximum: 10)