00639naa a2200205 a 450000100080000000500110000800800410001910000200006024501330008026000090021365000120022265000180023465000170025265300260026970000200029570000220031570000180033770000200035577300580037512794702025-01-07       1977    bl uuuu     u00u1 u    #d1 aROMAN-PONCE, H.  aPhysiological and production responses of dairy cattle to a shade structure in a subtropical environment.h[electronic resource]  c1977  aÁrvore  aBovinocultura  aSombreamento  aSistema silvipastoril1 aTHATCHER, W. W.1 aBUFFINGTON, D. E.1 aWILCOX, C. J.1 aHORN, H. H. van  tJournal Dairy Sciencegv. 60, n. 3, p. 424-430, 1977.