Nearly everyone espouses the belief that we should produce puppies that better a breed. However, ‘better’ is a subjective term; what it means to one person is completely different than what it means to another. ‘Better’ is something that’s often based in our ultimate goals, the end results of which are sometimes dictated by success in the dog game we play.
What isn’t subjective is sound genetic health. Science seeks objective and discernable answers regardless of the subjective nature of an issue. Genetic screening therefor is the cornerstone of bettering a breed, regardless of the game being played. While we should always strive for proper and acceptable form and function, the perfect dog does not exist – we do the best we can with the sires and dams available to us.
When deciding pairings, we should seek dogs that complement each other in form and function so as to produce consistent puppies. We should also seek to strengthen weaknesses in both parents' conformation by pairing them with a dog that offers a contrast to the flaws in each. With the randomness of how genes combine in all aspects of puppy's physical, mental and psychological attributes, it’s a tough order ...