TY - GEN AU - Sissom,E K AU - Reinhardt,C D AU - Hutcheson,J P AU - Nichols,W T AU - Yates,D A AU - Swingle,R S AU - Johnson,B J TI - Response to ractopamine-HCl in heifers is altered by implant strategy across days on feed SN - 1525-3163 PY - 2007///0924 KW - Adipose Tissue KW - drug effects KW - Adrenergic beta-Agonists KW - pharmacology KW - Animal Feed KW - Animals KW - Body Composition KW - Cattle KW - growth & development KW - Drug Combinations KW - Drug Implants KW - Estradiol KW - Female KW - Insulin-Like Growth Factor I KW - Muscle, Skeletal KW - Phenethylamines KW - RNA, Messenger KW - metabolism KW - Random Allocation KW - Receptors, Adrenergic, beta KW - Time Factors KW - Trenbolone Acetate KW - analogs & derivatives KW - Weight Gain N1 - Publication Type: Journal Article UR - https://doi.org/10.2527/jas.2006-660 ER -