Sentence:  For cows , feed providing an intake of 0.1 milligram of Aureomycin per pound of body weight daily aids in the reduction of bacterial diarrhea , in the prevention of foot rot , and in the reduction of losses due to respiratory infection ( infectious rhinotracheitis - <WSD>shipping</WSD> fever complex ) . 
Meaning of the word marked with <WSD> tags:  a deadly form of septicemia in cattle and sheep; involves high fever and pneumonia; contracted under conditions of exposure or exhaustion (as often happens when the animals are shipped to market)