01667naa a2200301 a 450000100080000000500110000800800410001902400430006010000210010324500960012426000090022052008550022965000180108465000140110265000130111665000170112965000100114665000170115665000120117365000100118565000170119565000110121265300140122365300150123765300190125270000170127177300770128815214012025-06-10       1964    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1071/AR96409372DOI1 aBRADEN, A. W. H.  aEffects of stress on ovarian morphology and oestrous cycles in ewes.h[electronic resource]  c1964  aAbstract: Observations involving over 600 sheep and extending over 4 years were made on the effect of acute stress on the estrous cycle and ovarian morphology of ewes. In anestrous ewes ovulation unaccompanied by estrous was often induced by severe stress. Injections of ACTH (cortrophin-ZN, Organon) did not induce ovulation in anestrous ewes. During the breeding season severe stress appeared sometimes to lengthen the estrous cycle by a few days. The presence of a large cavity in the corpus luteum (C.L.) often seemed to have been induced by stress, but the amount of luteal tissue and its microscopic appearance did not usually appear much different from solid C.L. Oxytocin injections did not affect estrous cycle or ovarian morphology, but in some circumstances injections of ACTH or stilboestrol appeared to cause an increase in cycle length.  aCorpus luteum  aInjection  aOxytocin  aReproduction  aSheep  aCiclo Estral  aOvário  aOvino  aReprodução  aStress  aAnoestrus  aMorfologia  aOestrous cycle1 aMOULE, G. R.  tAustralian Journal Agricultural Researchgv. 15, n. 6, p. 937-949, 1964.