K-State beef cattle experts discuss performance benefits, hormone misconceptions and management considerations regarding the use of growth implants
Kansas State University beef cattle experts say growth-promoting implants continue to be one of the most effective and researched tools available to beef producers.
On a recent episode of the Beef Cattle Institute’s Cattle Chat podcast, the group said growth implants are small pellets placed under the skin of a calf’s ear that release hormones to enhance muscle growth and improve nutrient use, resulting in increased weight gain and feed efficiency.
“Implants are a tool that can really improve performance when they’re used correctly,” said K-State beef cattle nutritionist Phillip Lancaster. “They’ve been around a long time, and we have a lot of data to support how well they work.”
Research shows implants can increase average daily gain by 10% to 20% and improve feed efficiency by up to 10%, making them one of the most economically beneficial management practices available.
Despite these benefits, adoption is not universal. Lancaster noted producers who choose not to use implants must account for performance differences.
“If you’re not using growth-promoting implants, you’re going to have smaller carcasses,” he said. “You need to be compensated for that, and typically that means about a 15% premium.”
The discussion also addressed misconceptions about hormone use. K-State veterinarian Brad White emphasized that all cattle naturally produce hormones.
“There is no such thing as hormone-free beef because all cattle produce their own hormones,” White said.
Lancaster added the difference in hormone levels between implanted and non-implanted beef is minimal.
“In a 4-ounce serving of beef from an implanted animal, there are about 2 nanograms of estrogen,” Lancaster said. “In non-implanted beef, there’s roughly 1 nanogram.”
Experts emphasized implants are not a substitute for good nutrition and management.
“Implants won’t overcome poor nutrition,” Lancaster said. “Cattle still need to be on an adequate plane of nutrition to see the full benefit.”
He added producers should focus on building frame and muscle before adding finish, while keeping efficiency and pricing in mind.
Ultimately, the BCI team encouraged producers to evaluate their goals and marketing strategies when deciding whether to use implants.
“Like any management decision, it comes down to what fits your system,” Lancaster said. “But when used appropriately, implants are one of the most consistent tools we have to improve efficiency in beef production.”
Listeners can hear the full discussion on the Beef Cattle Institute’s Cattle Chat podcast. Questions on this and other topics may be sent to [email protected].
PHOTO: Cattle feedlot (K-State Research and Extension)
