00681nam a2200217 a 450000100080000000500110000800800410001910000260006024500810008626001080016765000160027565000140029165300150030570000200032070000220034070000220036270000240038470000170040870000170042570000210044218984992011-12-16       2011    bl uuuu     u00u1 u    #d1 aOLIVEIRA, M. C. de S.  aNatural infestation by external parasites in beef cattle in southern Brazil.  aJournal of Animal Science, v. 89, E-Suppl. 1; Journal of Dairy Science, v. 94, E-Suppl. 1, p. 270c2011  abeef cattle  aparasites  aResistance1 aNAKANDAKARI, E.1 aBERALDO, M. C. D.1 aALENCAR, M. M. de1 aCHAGAS, A. C. de S.1 aBOSCHINI, L.1 aGIGLIOTI, R.1 aIBELLI, A. M. G.