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Revolutionizing Beef Quality: Genetic Solutions for Marbling and Tenderness

In 2005, Debbie McAllister presented groundbreaking genetic solutions at Penn State University, focusing on improving beef quality through commercial DNA tests that analyze traits crucial for marbling, tenderness, traceability, coat color, and paternity. With insights from the NCBA 2000 Quality Audit, we can now use genetic markers to select for economically significant traits that are typically hard to measure. Tests for the Thyroglobulin, Calpastatin, and Calpain genes enable producers to enhance herd quality, resulting in premium steaks and higher consumer satisfaction.

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Revolutionizing Beef Quality: Genetic Solutions for Marbling and Tenderness

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  1. It’s A Six Star Steak Debbie McAllister Penn State University 2005

  2. The Future is Here • Genetic Solutions • Australia • Bovigen Solutions, LLC • United States • Offering commercial DNA tests for marbling, tenderness, traceability, coat color and paternity

  3. ~30,000 genes

  4. The Reasoning • Top two quality concerns in NCBA 2000 Quality Audit • Allows producers to select for traits that are difficult and expensive to measure, but economically important Executive Summary of the 2000 NCBA Quality Audit

  5. Marbling • First gene marker for production trait in beef cattle • Tests for favorable alleles of the Thyroglobulin gene on chromosome 14 • TG5 single nucleotide polymorphism fragment • Thyroglobulin is involved in creating fat cells within fibers

  6. Marbling and Grades

  7. Marbling and Grades Bovigen Solutions, LLC Group 1 – yearlings Group 2 – calves Group 3 - NBCEC

  8. Marbling and Breeds www.beef.crc.org.au ~40% 2-STAR 0% 2-STAR 90+% 0-STAR

  9. Marbling and Breeds • Japanese Black Wagyu cattle • Breed leader for marbling • Kobe beef • Steaks sell for $120-250

  10. Tenderness • Tests for alleles of Calpastatin and Calpain genes • The Calpain gene weakens muscle fibers during post mortem aging • The Calpastatin gene is a naturally occurring enzyme that inhibits Calpain

  11. M CALP CALPST A Perfect 6 • Herd improvement • Tailor products to different markets • Consumer satisfaction Summitcrest Star Power HML Garder

  12. Reaching for the stars… “A quality herd means a quality steak, customer satisfaction and a premium that is felt all the way through the supply chain.” - Jason Strong Genetic Solutions Sales & Marketing Manager

  13. THANK YOU! Questions??

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