The leading producer of cattle implants trusted industry-wide.

For beef cattle, implants from Merck Animal Health improve productivity and revenue while making efficient use of resources.

Implants from Merck Animal Health can help strengthen beef cattle performance at every stage of production.

The benefits of consistent implanting add up.

Cattle implanted at each stage of production stand to gain up to an additional 195 pounds over the course of their lifetime when compared to non-implanted cattle.1 That’s a lot of extra gain with no additional grazing or feed resources.

For cow-calf producers, pre-weaning implants have clear advantages.

There’s a perception that non-implanted calves garner a higher premium on sale day than their implanted counterparts. However, data consistently shows no difference in sale price between implanted and non-implanted calves.2

RALGRO® (zeranol) increases weaning weight by 23 pounds on average compared to non-implanted calves. With results like that, it’s easy to see how cattle implants at the cow-calf level can result in a favorable payday.3

+23lbs average weaning weight advantage with Ralgro1

Implants help stockers perform in the pasture and beyond.

Research has proven that when the right cattle implants are given at the correct stage, cattle will continue to perform in the following stage. That means implanting stocker cattle has no negative impact on future performance at the feedlot.

With an implant designed just for stocker cattle like REVALOR-G® (trenbolone acetate and estradiol), stockers on pasture gain an extra 23 pounds on average. And they maintain the added weight during the finishing period.3

+23lbs average added weight gain on pasture with Revalor-G 5

For feedlot producers, implants capture critical gains at a critical time.

Cattle implanted at the feedlot stand to gain an additional 75 to 140 pounds over non-implanted cattle, using the same amount of resources. With the right implant, cattle can remain productive throughout the entire finishing period — no re-implanting necessary.

With a novel delayed-release technology that delivers two doses in a single implant, REVALOR-XS and -XH give feedlot steers and heifers the exact dosage they need when they need it. That means no added stress or loss of feed intake for cattle and no extra labor for producers.

Learn more about REVALOR-XS and -XH

+75-140 Additional lbs. gained at the feedlot 6

Looking for more options? Merck Animal Health has a variety of implants designed to meet your specific needs.

1.Capper J.L. 2013. The environmental and economic impact of steroid implant and beta-adrenergic agonist use within U.S. beef production. In: Proceedings of the ADSA-ASAS Joint Annual Meeting, Indianapolis, IN, USA.
2.Superior Livestock Auction Data 2014-2018.
3.Data on file, Merck Animal Health.
4.Selk, G. (1997) Implants for Suckling Steer and Heifer Calves and Potential Replacement Heifers. Proceedings: Impact of Implants on Performance and Carcass Value of Beef Cattle.
5.Kuhl, G.L. (1997) Stocker Cattle Responses to Implants. Proceedings: Impact of Implants on Performance and Carcass Value of Beef Cattle. Oklahoma State University, P-957. Pg 51-62.
6.Duckett, S.K. (1997) Effects of Implants on Performance and Carcass Traits of Feedlot Steers and Heifers. Proceedings: Impact of Implants on Performance and Carcass Value of Beef Cattle. Oklahoma State University, P-957. Pg 63-82

RALGRO IMPORTANT SAFETY INFORMATION: A withdrawal period has not been established for RALGRO in pre-ruminating calves. Do not use in calves to be processed for veal. For complete information, refer to product label.

REVALOR-G IMPORTANT SAFETY INFORMATION: A withdrawal period has not been established for REVALOR-G in pre-ruminating calves. Do not use in calves to be processed for veal. For additional information, please see the product label.

REVALOR-XS IMPORTANT SAFETY INFORMATION: A withdrawal period has not been established for REVALOR in pre-ruminating calves. Do not use in calves to be processed for veal. Implant pellets in the ear only. Any other location is in violation of Federal Law. Do not attempt salvage of implanted site for human or animal food. For complete product information, refer to product label.

REVALOR-XH IMPORTANT SAFETY INFORMATION: No withdrawal period is required when used according to labeling. Do not use in calves to be processed for veal. A withdrawal period has not been established for this product in pre-ruminating calves. Do not use in lactating dairy cows or in animals intended for subsequent breeding. Use in these cattle may cause drug residues in milk and/or in calves born to these cows. Administer implant subcutaneously in the ear only. Any other location is in violation of Federal Law. Do not attempt salvage of implanted site for human or animal food. Not for use in humans. Keep this and all drugs out of the reach of children. For complete information, refer to product labels.

REVALOR-200 IMPORTANT SAFETY INFORMATION: Not to be used in animals intended for subsequent breeding, or in dairy animals. For animal treatment only. Not for use In humans. Implant pellets in the ear only. Any other location is in violation of federal law. Do not attempt salvage of implanted site for human or animal food. A withdrawal period has not been established for this product in preruminating calves. Do not use in calves to be processed for veal.

REVALOR-IS IMPORTANT SAFETY INFORMATION: A withdrawal period has not been established in pre-ruminating calves. Do not use in calves to be processed for veal. For complete information, refer to product label.

REVALOR-S IMPORTANT SAFETY INFORMATION: A withdrawal period has not been established in pre-ruminating calves. Do not use in calves to be processed for veal. For complete information, refer to product label.

REVALOR-IH IMPORTANT SAFETY INFORMATION: Not to be used in animals intended for subsequent breeding, or in dairy animals. For animal treatment only. Not for use In humans. Implant pellets in the ear only. Any other location is in violation of federal law. Do not attempt salvage of implanted site for human or animal food. A withdrawal period has not been established for this product in preruminating calves. Do not use in calves to be processed for veal.

REVALOR-H IMPORTANT SAFETY INFORMATION: A withdrawal period has not been established in pre-ruminating calves. Do not use in calves to be processed for veal. For complete information, refer to product label.