Breeders maintain consistency within the breed by following the breed standard.
The large variations in height and weight are explained by selection for a variety of uses within the breed.
Yet even within the same breed, dogs perform differently, and that doesn't create much tension among us owners.
The wide range in size is due to different types within the breed.
Various genetic health issues arose and action was taken in order to correct the problems within the breed.
We have a pure strain within the breed.
Until selection began in 1926 there were very diverse physical characteristics within the breed due to lack of breeding regulations.
Debilitating seizures have also been reported within the breed.
Both convex and concave profiles are found within the breed.
Within the breed, this trait is not visible.
