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(Merck)  Time release implant for feedlot steers that eliminates the need to re-implant. Each dose contains ten pellets: four uncoated for immediate release into the system and six coated with X7 polymer for release into the system after 70-80 days. Each dose contains a total of 200 mg trenbolone acetate and 40 mg estradiol, the equivalent of administering Revalor-IS followed by Revalor-S at day 75.

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