00964naa a2200277 a 450000100080000000500110000800800410001910000200006024501260008026000090020652001580021565000170037365000140039065000170040465000180042165000170043965300220045665300260047865300300050465300170053470000170055170000190056870000190058770000230060677300570062910425082018-08-22 1990 bl uuuu u00u1 u #d1 aMADALENA, F. E. aGenetics and breedingbDairy reproduction and reproduction in Holtein-friesian and Guzera crosses.h[electronic resource] c1990 aData on 660 first and second lactations and on 506 calving intervals were used to characterize six and white Holstein-Friesian X Guzera crossbred groups. adairy cattle aheterosis areproduction aGado Leiteiro aReprodução aGenetics breeding aMelhoramento genetico aTropical dairy production aZebu crosses1 aLEMOS, A. M.1 aTEODORO, R. L.1 aBARBOSA, R. T.1 aMONTEIRO, J. B. M. tJournal Dairy Sciencegv.73, n.7, p.1872-1886, 1990.