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Beef producers sought for GrowSafe system research at MU

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Researchers will mine data from the GrowSafe system to help producers select breeding stock cows that eat less while producing calves with similar growth.

Researchers at University of Missouri’s (UM) Southwest Research Center are inviting beef producers to take part in a program to identify beef cows that use feed efficiently.

MU Extension researchers will mine data from the GrowSafe system to help producers select breeding stock cows that eat less than other cows while producing calves with similar growth, said Reagan Bluel, interim superintendent of Southwest Center, an MU research farm in Lawrence County.

Currently, most systems measure feed efficiency by pens. The GrowSafe system tracks individual feed intake and weight gain. Cows that eat less will reward producers by reducing ongoing production costs over long periods, said Bluel.

“Imagine your herd of cows producing a growthy calf every year,” she said. “Now imagine being able to find the mamas in your herd doing this while eating less forage. It’s a game-changer for your cow herd. Determining the efficiency of your replacements will reap cost savings in maintenance feeding throughout the heifer’s entire life.”

Breeding these cows with efficient sires can further improve herd profits.

“It is hard to measure in a historical beef system,” Bluel said. “In beef, you have a birth weight, then typically nothing until weaning. Even then, we still don’t have intake.”

Bluel said producers can enroll their replacement heifers aged 9-12 months in the Heifer Efficiency Test this winter.

MU specialists will feed individual heifers a total mixed ration throughout the test. They also will weigh heifers during the test to measure their rate of gain.

“We can determine the efficiency of gain by simply dividing the pounds of feed required by the pounds gained,” said Eldon Cole, MU Extension livestock specialist.

Southwest Research Center will contract to test heifers born in spring 2020 that have been weaned at least 45 days, bunk broke and on a vaccination protocol that included two rounds of modified live vaccines.

The 63-day test will cost producers $400 per animal. This includes the cost of feed, yardage and management.

The test starts the first week of January. Participants will receive their heifers before pre-breeding exams and the breeding season. Space is limited.

To learn more or to enroll heifers, contact the MU Southwest Research Center at SouthwestCenter@missouri.edu or 417-466-2148.

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