00799naa a2200169 a 450000100080000000500110000800800410001902400310006010000170009124500590010826000090016752003460017665000120052265000100053465000170054477300680056115232652023-11-08       1962    bl uuuu     u00u1 u    #d7 a10.1530/jrf.0.00300502DOI1 aEDGAR, D. G.  aStudies on infertility in ewes.h[electronic resource]  c1962  aAbstract: Possibly because more dividing ova failed to implant in them, a higher proportion of young than of mature ewes returned to oestrus following mating. Apparently, dividing ova tended to reach the uterus earlier in the young ewes, perhaps because of the early relaxation of the utero-tubal junction due to a lower oestrogen secretion.  aDoença  aOvino  aReprodução  tJournal Reproduction and Fertilitygv. 3, n. 1, p. 50-54, 1962.