To help you figure the percentage of blood of a particular ancestor in your dog's pedigree use the chart and the steps below. Just remember that the percentage of blood is only an approximation of the inheritance a particular ancestor gave to your dog.
Step 1 - Determine the relationship between your dog and the targeted ancestor.
Step 2 - Find that relationship on the chart to determine the approximate percentage of blood that ancestor contributed to your dog.
Step 3 - If, as in many pedigrees, the targeted ancestor appears more than once in your dog's pedigree, repeat steps 1 and 2 for each occurrence and add the amounts together.
Example: If the dog Appears Once on the Parents (First Generation = 50%) and Twice on the Great Grandparents (Third Generation = 12.5% * 2 = 25%), then the dog is 75% linebred.
Percentage of blood can be used to help determine when two dog's would be a good cross, but it is only one tool out of many. Beware of the breeder who uses it as the only tool. Just because two dogs have a high percentage of a valuable ancestor doesn't mean they should be bred together, particularly if they have common faults.
