DNA Data Enhances Beef Quality

COLUMBIA — Beef-cow herd owners will learn new ways to raise better calves at three University of Missouri meetings in March. The sessions lead producers from proven breeding to new uses of DNA.

MU Extension animal scientists David Patterson and Jared Decker will lead the ReproGene Meetings.

Management of fixed-time artificial insemination allows more live calves and more uniform calf crops.

New DNA tools make rapid advances in beef quality. Genomics allow breeders to predict traits of the next generation.

Traditionally, breeders use expected progeny differences (EPDs). New EPDs add DNA data. Pedigrees and production testing are still used; however, genetically-enhanced EPDs give more accuracy. A simple DNA test with blood or hair samples replaces years of production testing.

With GE-EPDs, the added DNA speeds improving traits, whether for maternal or meat market ends.

Recent high premiums at packing plants signal demand for more high-quality beef. The USDA prime/choice price spread is the new guide to follow.

Consignors at fall and spring Show-Me-Select Replacement Heifer sales learn the value of maternal genetics. Heifers bred by fixed-time artificial insemination (FTAI) bring higher prices than bull-bred heifers. AI allows use of top proven sires on any farm.

Repeat buyers want more SMS heifers. With heifer breeding management, conception rates rise and death losses drop. Adding genetics improves quality.

Meeting Times

March 8: Joplin Regional Stockyards, Carthage. Eldon Cole, Mount Vernon, 417-4663102.

March 21: Mills Center, Laclede County Fairgrounds, Lebanon. Andy McCorkill, Buffalo, 417-345-7551.

March 26: Recklein Auditorium, 202 N. Smith St., Cuba. Ted Cunningham, Salem, 573-729-3196.

The events begin at 4 p.m. with the program at 4:30 p.m. Dinner is at 6 p.m. with a farmer panel at 8:15 p.m.

Patterson, MU Extension reproduction specialist, will lead with a review of fixedtime AI for heifers and cows. He will tell of improved breeding of 2-year olds.

Jordan Thomas, MU research assistant, will tell of his work using sex-sorted semen and split-time AI. New protocols improve conceptions.

Jared Decker, MU Extension geneticist, gives basics of EPDs and genomic predictions. Then he will tell how genomics increase profits.