This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by GINTHER, O. J. Articles by CASIDA, L. E. Search for Related Content PubMed Articles by GINTHER, O. J. Articles by CASIDA, L. E.

EFFECT OF OXYTOCIN ADMINISTRATION ON THE OESTROUS CYCLE OF UNILATERALLY HYSTERECTOMIZED HEIFERS

Summary.: The effect of oxytocin administration on the oestrous cycle was studied in sixteen uterine-intact and thirty-two surgically prepared unicornual heifers. Unilateral hysterectomy was performed on Day 3 of the oestrous cycle and oxytocin or an equivalent volume of physiological saline was administered daily from Day 3 to Day 7 or 8. Oxytocin produced significantly shorter oestrous cycles in the intact heifers and in the unicornual heifers with the retained uterine horn adjacent to the CL, but not in the unicornual heifers with the retained horn opposite to the CL. These results strongly suggest that at least part of the effect of oxytocin is exerted through local, utero-ovarian channels. A unilateral effect of the uterus on the CL was demonstrated in unicornual heifers that did not receive oxytocin. The oestrous cycles were extended and the CL persisted when the retained horn was opposite to the CL, but not when the retained horn was adjacent to the CL.

This article has been cited by other articles:

				O.J. Ginther, L.A. Silva, R.R. Araujo, and M.A. Beg Temporal Associations among Pulses of 13,14-Dihydro-15-keto-PGF2alpha, Luteal Blood Flow, and Luteolysis in Cattle Biol Reprod, March 1, 2007; 76(3): 506 - 513. [Abstract] [Full Text] [PDF]