@article {10.3844/ajavsp.2021.99.104, article_type = {journal}, title = {A Greater dose of Ractopamine Hydrochloride Enhances Feedlot Performance and Impacts Carcass Characteristics of Calf-Fed Holstein Steers}, author = {Hergenreder, Jerilyn E. and L. Beckett, Jonathon and K. Smith, Zachary and J. Johnson, Bradley}, volume = {16}, number = {1}, year = {2021}, month = {Mar}, pages = {99-104}, doi = {10.3844/ajavsp.2021.99.104}, url = {https://thescipub.com/abstract/ajavsp.2021.99.104}, abstract = {The objective was to evaluate the effects of supplementing ractopamine HCl at the rate of 400 mg steer1 daily in the final 28 d of the feeding period on growth performance and carcass characteristics of Holstein steers. Steers (n = 1,498; initial BW = 547 kg) were randomly assigned to pens (10 pens/treatment) and to a treatment: (1) 0 mg∙steer1∙d1 of RH (CON); (2) Ractopamine HCl fed at 400 mg∙steer1∙d1 of RH (RH) for evaluation over a 28 d period. Steers were fed a finishing diet based on steam-flaked corn and alfalfa hay. Dry matter intake decreased, Average Daily Gain (ADG) was increased and improved feed efficiency (P}, journal = {American Journal of Animal and Veterinary Sciences}, publisher = {Science Publications} }