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It’s A Six Star Steak Debbie McAllister Penn State University 2005 The Future is Here • Genetic Solutions – Australia • Bovigen Solutions, LLC – United States • Offering commercial DNA tests for marbling, tenderness, traceability, coat color and paternity ~30,000 genes 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 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 Marbling and Grades Maturity Click to add text Marbling Abundant Mod. Abund. Sl. Abund. Moderate Modest Small Slight Traces Pract. Dev. A B C D Prime Commercial Choice Select Standard Utility E Marbling and Grades Bovigen Solutions, LLC Group 1 – yearlings Group 2 – calves Group 3 - NBCEC www.beef.crc.org.au Marbling and Breeds 0% 2-STAR 90+% 0-STAR ~40% 2-STAR Marbling and Breeds • Japanese Black Wagyu cattle – Breed leader for marbling – Kobe beef – Steaks sell for $120-250 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 A Perfect 6 • Herd improvement Summitcrest Star Power M CALP • Tailor products to different markets CALPST • Consumer satisfaction HML Garder 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 THANK YOU! Questions??