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Effect Of Antibiotics In Adaptation Of Growing Beef Calves To The Feedlot, Richard M. Luther
Effect Of Antibiotics In Adaptation Of Growing Beef Calves To The Feedlot, Richard M. Luther
South Dakota Beef Report, 1986
Four medication schemes for adapting stressed feeder calves t o the feedlot were evaluated in a 110-day trial. A total of 160 Hereford, Angus and Hereford x Angus steers (544 lb.) were fed a high-corn silage diet supplemented with the following medications: (1) nonmedicated control, (2) chlortetracyclinesulfamethazine (350 mg/steer of each compound for 28 days, (3) oxytetracycline (2 g/steer) for 10 days, then 1 g/steer for 4 days) and (4) oxytetracycline (2 g/steer for 14 days). Average daily gain, dry matter consumption and feed conversion were similar (P>.05) for calves in all treatments. None of the steers required additional …