Texas Adapted Genetic Strategies for Beef Cattle XI: Marker Assisted Selection for Beef Improvement

Date of Publication
January 25, 2022
See Agrilife Learn


This publication is Number 11 in the series Texas Adapted Genetic Strategies for Beef Cattle.

Bits of DNA called markers can be useful in determining possible specific performance of a particular trait; these markers are typically located near genes associated with trait heritability. Testing for these markers can facilitate selective breeding. Several well-known benefits of DNA testing include validation of parentage, testing for diseases or genetic defects, and testing for qualitative inherited traits.

Testing for markers and other QTLs of interest can be done at or shortly after birth, reducing the time and cost involved in collecting data from older animals or from carcasses. With each animal tested, DNA testing will provide more information, especially about traits that are difficult to measure or that are sex limited. Such testing also provides greater opportunities to select for traits with genetic antagonisms. (5 pages)

Looking for solutions in your county? Contact your local extension experts

More choices in Livestock & Poultry

  • Publication

    This publication provides information on how to properly manage horses and cattle together in a pasture setting.

  • Publication

    This manual explains how to evaluate horses in contests or as potential purchases.

    Note: This is a paid downloadable publication.

  • Publication

    This manual aids in teaching beginners and experienced individuals how to properly evaluate live birds, ready-to-cook poultry, shell eggs, and processed poultry. It also includes information related to poultry production, management, and science and cooperating with others in solving poultry industry problems.

  • Course

    This course provides accreditation for poultry producers in nuisance odor prevention. Topics include methods for reducing odors, tips for land application of litter, and state-mandated odor control plans.

  • Course

    Join Texas A&M poultry experts to learn what it takes to raise poultry for 4-H or FFA.

  • Course

    In this course, horse owners and managers will learn about important topics related to managing the broodmare and foal.