Pedigree and correlation numbers.
Above is a pedigree of you new puppy/dog as well as a breed COR percentage.
- When planning for breeding this number reflects the potential impact that line had on the puppy/dog you see today.
- The bracket numbers {X-Y} shows the generation where that dog shows up in your puppy/dog's pedigree over the past 10 generations.
- X generations for male family members.
- Y for female family members.
- If a family member shows up more than once it will show the generation.
In the example above CH Lieblinghaus von Sonnenschein appears as {3,5,5-} meaning this male shows up once in the 3rd generation and twice in the 5th generation and does not show up at all in the females family. The COR
percentage is based on what percentage impact did this male or female have on that specific column generation. It can be more than 100% in the total column
due to prior generations impacting the overall makeup of the parents.
We do not use line breeding and here is why.
Studies from the University of Missouri Columbia the top Veterinary school in the country has this to say about line breeding. "Development of highly productive inbred lines of domestic livestock is possible. To date, however, such attempts have met with little apparent success. Although occasional high performance animals are produced, inbreeding generally results in an overall reduction in performance. This reduction is manifested in many ways. The most obvious effects of inbreeding are poorer reproductive efficiency including higher mortality rates, lower growth rates and a higher frequency of hereditary abnormalities."
The end result we are looking for is a more balanced approach and look specifically for a COR percentage score across 10 generations that is less than 10%. While this does not indicate improved performance or avoidance of specific health problems it does decrease the likelihood of health issues.
