Genetics of dog breeding

To be an effective dog breeder, you should have a basic understanding of the science of genetics. Everything about your prospective puppies' health, soundness, looks, and temperament will be determined by the genes passed on by their parents, and by their parents before them.

Therefore, the selection of a mating pair should not be made solely on the basis of the dog's or bitch's looks (or temperament or soundness, etc.), but should be based on an understanding of how the animal's genes contributed to its looks and of how those genes are passed on and expressed. That is why it is essential to study the pedigrees of your mating pair. The more dog breeding info you have as you make your selection, the more likely you are to produce a litter with the qualities you desire.

You should also be well-versed in the genetic problems that affect your breed. Genetic defects can occur in any breed and can affect any system in the body. Some genetic diseases may occur in many breeds; others occur in only one or a few breeds. Any dog breeding effort will fail hopelessly without a sound understanding of the genetics behind dog breeding.
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