We contacted a volunteer for the SPCA to ask him what he thinks a possible solutions may be. Overall his answers were what we had expected. He told us that it has to start with the breeding process. Most often dogs that are given to shelters are because of behavioural problems that are caused from isolation, not socializing them properly as puppies and bad breeding. As puppies it is very important that dogs go through their stages properly and get used to new things and environments. If not fears can be imprinted on them and cause fear aggression, which ultimately leads to dogs in shelters. So, if puppy mils could effectively be banned and shut down, and well as backyard breeding could be limited and stopped this would drastically decrease the number of poorly bred dogs being put into shelters. Second to behavioural problems, we were told the next leading cause of dogs going into shelters is families moving or having children and not being able to re home the dog, thus forcing them to put the dog in a shelter.
It seems as though, everyone we talk to unanimously agrees that puppy mils and backyard breeding are the source of the issue of sheltered dogs- clearly it is time to find a solution.