Rescued dogs in particular should not be bred. No responsible breeder uses a dog of unknown ancestry. Rescuers see every day the misery that comes from irresponsible breeding…from placement in bad homes to genetic problems to temperament difficulties. The number of unwanted dogs euthanized every year is staggering. Rescued dogs should never be used to contribute to the very problem that often brings them to rescue.
Most owners are not equipped to handle the challenges of an intact dog. There are no significant disadvantages to neutering or spaying when weighed against the health benefits. The National Wheaten Rescue never releases an intact –un-spayed or un-neutered– on an adult Wheaten.