An Investigation into the Impact of Pre-Adolescent Training on Canine Behavior.

An online survey about puppy training was sent to members of the Center for Canine Behavior Studies and posted on our social media platforms. Six hundred forty-one (641) qualifying owners provided information on 1023 dogs. About half (48%) of the dogs involved in the study attended puppy training and the balance (52%) did not. The goal of the study was to find out whether puppy training at various ages (1-3 months, 4 months, 5-6 months) helped prevent behavior problems later in life (≥1 year). Attending training at 6 months of age or younger resulted in 0.71 the odds of developing aggressive behavior (95% CI: 0.53-0.97; p = 0.030), 0.64 the odds of having a compulsive behavior (95% CI: 0.45-0.92; p = 0.015), 0.60 the odds of exhibiting destructive behavior (95% CI: 0.37-0.96; p = 0.035), 0.68 the odds of excessive barking (95% CI: 0.47-0.99; p = 0.043), and 1.56 the odds of house soiling (95% CI: 1.08-2.27; p = 0.019). Ancillary findings about the entire study population were that dogs acquired at 12 weeks of age or younger were found to have 0.65 the odds of fear/anxiety (95% CI: 0.46-0.92; p = 0.016) and 0.50 the odds of exhibiting destructive behavior (95% CI: 0.31-0.79; p = 0.003). In addition, male dogs were found to have 0.68 the odds of developing aggressive behavior (95% CI: 0.53-0.88; p = 0.003), 0.66 the odds of developing compulsive behavior (95% CI: 0.49-0.88; p = 0.006), 0.37 the odds of mounting/humping (95% CI: 0.26-0.52; p < 0.001), and 1.53 the odds of rolling in repulsive materials (95% CI: 1.18-1.97; p = 0.001). Neutered dogs of either sex were found to have 3.10 the odds of fear/anxiety (95% CI: 2.05-4.72; p < 0.001), 1.97 the odds of escaping/running away (95% CI: 1.12-3.69; p = 0.025), 2.01 the odds of exhibiting coprophagia (95% CI 1.30-3.19; p = 0.002), and 1.72 the odds of rolling in repulsive materials (95% CI: 1.12-2.66; p = 0.014). The odds of problematic jumping deceased by 0.84 for each 1-year increase in age (95% CI: 0.80-0.88; p < 0.001).