00619naa a2200217 a 450000100080000000500110000800800410001910000200006024501100008026000090019065000150019965000100021465000150022465000170023965300200025665300110027665300130028765300180030065300140031877300690033215904771993-02-16       1988    bl uuuu     u00u1 u    #d1 aMARTINEZ, M. L.  aAge and zebu-holstein additive and heterotic effects on lactation performance and reproduction in Brazil.  c1988  aCruzamento  aIdade  aProdução  aReprodução  aBovino de leite  aEfeito  aHeterose  aRaca holandes  aRaca zebu  tJournal of Dairy Science, Champaigngv.71, n.3, p.800-808, 1988.