Avila, F.A. Avila, S.H.P. Iturrino, R.P.S. Quintana, J.L. <br/><br/>
Evaluation of the immunizing efficiency of a Pili K99 - Bearing vaccine for the protection of cattle against colibacillosis 

<br/><br/><label>Subjects--Topical Terms: </label><br/>VACA LEITEIRA<br/>COLIBACILOSE<br/>IMUNIZACAO<br/>VACINA