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Collecting and utilizing phenotypic data to minimize disease: A breeder’s practical guide

    Collecting and utilizing phenotypic data to minimize disease: A breeder’s practical guide

    Author: Rhonda Hoven
    OFA publication. (2003)
    While DNA / Genetic tests are becoming increasingly important in management of breeding dogs, it is important to recognize...

    "DNA tests are not available for the majority of common canine diseases. Most tests intended to offer breeders health information about a dog’s suitability for breeding, rely instead on an evaluation of the dog’s physical status at the time of examination. These are called phenotypic tests, and include evaluations for hip and elbow dysplasia, many eye and cardiac diseases, patella and thyroid disease, and most current canine disease evaluations."



    This article is included here to enable readers to better understand the complexities of management of breeding dogs.

    Collecting and utilizing phenotypic data to minimize disease: A breeder’s practical guide

    Document TOC

    •  A Comparison of Genotypic Tests to Phenotypic Tests
    •  Vertical Pedigrees
    •  Additional Factors to Consider In Evaluating Vertical Pedigrees
    •  Collecting Data for Vertical Pedigrees
    •  Building A Personal Data Base
    •  Beyond Disease
    •  A Dependable Breeding Philosophy

    The concepts advocated herein are based on sound genetic principles, and are designed to help breeders manage many types of complicated real world breeding decisions. The OFA recognizes that most hobby and competition breeders have admirable intentions, but are faced with a challenging blend of art and science in which one of the most frustrating aspects is the seeming unpredictability of results. Vertical pedigree construction and analysis is a very powerful tool which can assist in reducing surprises and improving predictability. With this method, progress toward one’s goals is usually more assured, and the risks of unexpected and potentially devastating disease is decreased. This technique can help breeders build a foundation which can become stronger and more dependable with every successive generation. By working closely together, OFA and the conscientious breeders who depend on its services, can continue to make significant strides toward protecting and advancing the health of dogs.



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