00894naa a2200241 a 450000100080000000500110000800800410001910000180006024501280007826000090020652001720021565000210038765000170040865000290042565000100045465000150046465000100047965000170048965300300050670000180053670000190055477300790057315211662025-06-17       1976    bl uuuu     u00u1 u    #d1 aOLDHAM, C. M.  aAn explanation for the reduced fertility in Merino ewes at the first oestrus of the breeding season.h[electronic resource]  c1976  aTHis experiment examined the fertility of ewes in this category and compared their fertility with that of ewes which wee already cycling when the rams were introduced.  aAnimal fertility  aReproduction  aReproductive performance  aSheep  aFisiologia  aOvino  aReprodução  aComportamento reprodutivo1 aKNIGHT, T. W.1 aLINDSAY, D. R.  tProceedings Australian Society Animal Productiongv. 11, p. 129-132, 1976.