One of the major problems confronting cattlemen is control of the
occurrence of respiratory diseases such as shipping fever, colds, nasal
congestion. and pneumonia. These respiratory conditions are especially
troublesome to cattle feeders who ship and receive cattle during the fall
and winter months, when adverse weather conditions put added stress on
cattle.
This study is to investigate the value of various antibiotics administered
orally or by injection to weaning calves to control the occurrence of
respiratory diseases during the first few weeks they are in drylot.