Time of ovulation in ewes after treatment with a prostaglandin F-2alpha analogue.
Treatment of 18 cyclic Clun Forest ewes with two i.m. injections of ICI 80,996, given 9 days apart and without reference to stage of the oestrous cycle, synchronized ovulation in all ewes at a mean time interval of 73.1 +/- 1.6 (s.e.m.) h from the second injection. The interval from the LH peak to ovulation was 22.6 +/- 0.7 h and this is comparable to previously reported gigures for a natural oestrus.
D000818:Animals; D004971:Estrus; D005260:Female; D007986:Luteinizing Hormone / Q000378:metabolism; D010060:Ovulation / Q000187:drug effects*; D011247:Pregnancy; D011461:Prostaglandins F, Synthetic / Q000494:pharmacology*; D012756:Sheep; D013997:Time Factors
D011461:Prostaglandins F, Synthetic; D007986:Luteinizing Hormone