Each breed and each bloodline carries with it certain traits, characteristics that are desirable and undesirable. Certain genetic pools may even constitute what are known as "lethal" genes. It takes years of concentrated study and effort, trial and error, to achieve a successful breeding program in any breed and type of dog.

Any person who breeds dogs should obtain at the very least a fundamental grasp not only of the study of genetics, but the focus of the breed Standard involved; and importantly, why the Standard is devised as written and the background several generations behind each pair of dogs being united. Even with the most scientific approach, breeding dogs involves a certain amount of luck.

Not unlike a spin of the roulette wheel, there is a "numbers game" of percentages in breeding dogs. It helps, therefore, to stack the percentages toward the successful side of each endeavor. Simplified, this equates to breeding the best female you have been able to obtain to the male best physically and genetically.