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Genetics and Testing

Genetic testing vs. Genomic testing

 

Genetic testing looks at specific traits linked to a gene. This is what is used to screen for diseases such as chondrodysplasia and PHA. 

 

Genomic testing looks at the entire genome of the animal. With genomic testing we can look at the merit and future performance of an animal. If we are evaluating a bull, we may be interested in birth weight and calving ease. We would not want to use a bull with a high birth weight or a low score on calving ease for a first time heifer. Without genomic testing, the best we can do is look at the size of the bull and guess how he will influence the calving ease of his daughters. Genomic testing provides tangible results to differentiate the value of cattle and helps us improve our herds with each generation.

Reasons to Test

Genetic testing is a management tool that helps breeders make data-driven decisions to improve their herd. Here are some key reasons to test your herd today:

     1.     Identification of Genetic Defects
             Genetic testing allows breeders to identify carriers of chondrodysplasia and PHA which prevents the unintentional mating of                     carriers.

     2.     Improved Breeding Decisions
             Test results provide objective data to support a breeders decision in purchasing and retaining animals. Producers can retain or                 purchase animals that align with the goals they have for their herd, for example: docility, longevity, size, maintain dual purpose                 traits, growth, fertility, carcass quality, milk production and so much more.

    3.     Verification of Parentage
            DNA testing confirms sire and dam information, ensuring an accurate registry. It may also allow reduced testing costs for                            offspring if obligate status is available.

    4.     Increased Market Value and Buyer Confidence
            Genetically tested cattle may be more attractive to buyers. Providing documented test results demonstrates transparency and                  professionalism, often justifying premium pricing and reducing disputes after sale.

 

While the PDCA does not require testing, as breeders there is an inherent value in knowing what each of your animals bring to your breeding program. When we send in a tissue or hair sample for genomic testing we are really looking “under the hood” of the cow we are having tested.

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