Sentence:  For cows , feed providing an intake of 0.1 milligram of <WSD>Aureomycin</WSD> 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 - shipping fever complex ) . 
Meaning of the word marked with <WSD> tags:  a yellow crystalline antibiotic (trade name Aureomycin) used to treat certain bacterial and rickettsial diseases