Over 3700 owners of dogs representing 111 different breeds, all of which had been raised in the breeder's actual living quarters before homing, participated in the electronic survey .
Increased age of homing appeared to be connected to a higher prevalence of aggressive/avoidance behaviour towards unfamiliar people and dogs, both inside and outside adult dogs’ homes and, as such, support previous findings. Adult dogs obtained later than 8 weeks of age are more likely to show later aggression outside their home.
The study is in press in Applied Animal Behaviour Science - journal.
DVM Olli Jokinen, olli.jokinen(at)fimnet.fi
prof. Anna Valros anna.valros(at)helsinki.fi