“…When comparing the effects of -agonists on skeletal muscle size and strength in different animal models, it is also important to consider the mode of -agonist administration, i.e., whether administered orally via the drinking water (70,181,337,351,376,423,482), via the feed (76), via a slow-release pellet (85), oral gavage (57), mini-osmotic pump (74), or via intraperitoneal or subcutaneous injection (21,117,208,209,367,411). While administration of -agonists via the food or drinking water is convenient, there is uncertainty as to whether every treated animal will receive an identical dose.…”