Ovarian and endocrine responses to prostaglandin F2α (PGF2α) given at the expected time of the endogenous FSH peak at mid-cycle in ewes

Theriogenology

Volumn 66, Issue 4, 2006, Pages 811-821

  Liu, Xinyu ^a   Dai, Qiao ^a   Hart, Ezra J ^a   Duggavathi, Rajesha ^b   Barrett, David M W ^c   Rawlings, Norman C ^c   Bartlewski, Pawel M ^a  

^a UNIVERSITY OF GUELPH   (Canada)

^b University of Saskatchewan ^*  (France)

^c UNIVERSITY OF SASKATCHEWAN   (Canada)

Author keywords

Ewe; Luteal function; Ovarian follicular waves; Ovulation; Prostaglandin F2

Indexed keywords

OVIS;

EID: 33746909491     PISSN: 0093691X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.theriogenology.2006.01.057     Document Type: Article

References (35)

1. Ginther O.J., Kot K., and Wiltbank M.C. Associations between emergence of follicular waves and fluctuations in FSH concentrations during the oestrous cycle in ewes. Theriogenology 43 (1995) 689-703
2. Bartlewski P.M., Beard A.P., Cook S.J., Chandolia R.K., Honaramooz A., and Rawlings N.C. Ovarian antral follicular dynamics and their relationships with endocrine variables throughout the oestrous cycle in breeds of sheep differing in prolificacy. J Reprod Fertil 115 (1999) 303-314
3. Bister J.L., Noel B., Perrard B., Mandiki S.N.M., Mbayahaga J., and Paquay R. Control of ovarian follicles activity in the ewe. Dom Anim Endocrinol 17 (1999) 315-328
4. Evans A.C.O., Duffy P., Hynes N., and Boland M.P. Waves of follicle development during the estrous cycle in sheep. Theriogenology 53 (2000) 699-715
5. Duggavathi R., Bartlewski P.M., Barrett D.M.W., and Rawlings N.C. Use of high-resolution transrectal ultrasonography to assess changes in numbers of small ovarian antral follicles and their relationships to the emergence of follicular waves in cyclic ewes. Theriogenology 60 (2003) 495-510
6. Evans A.C.O. Characteristics of ovarian follicle development in domestic animals. Reprod Dom Anim 38 (2003) 240-246
7. Evans A.C.O. Ovarian follicle growth and consequences for fertility in sheep. Anim Reprod Sci 78 (2003) 289-306
8. Bartlewski P.M., Beard A.P., and Rawlings N.C. An ultrasound-aided study of temporal relationships between the patterns of LH/FSH secretion, development of ovulatory-sized antral follicles and formation of corpora lutea in ewes. Theriogenology 54 (2000) 229-245
9. Duggavathi R., Bartlewski P.M., Barrett D.M.W., and Rawlings N.C. The temporal relationship between the pattern of LH and FSH secretion, and development of ovulatory-sized follicles during the mid- to late luteal phase of sheep. Theriogenology 64 (2005) 393-407
10. Gibbons J.R., Kot K., Thomas D.L., Wiltbank M.C., and Ginther O.J. Follicular and FSH dynamics in ewes with a history of high and low ovulation rates. Theriogenology 52 (1999) 1005-1020
11. Gordon I.R. Artificial control of oestrus and ovulation. In: Gordon I.R. (Ed). Controlled reproduction in farm animals series, vol. 2: Controlled reproduction in sheep and goats (1997), CAB Intrenational, New York 87-89
12. 2α. Anim Reprod Sci 78 (2003) 47-55
13. 2α given at different times during the luteal phase in ewes. Theriogenology 58 (2002) 1409-1424
14. Adams G.P. Comparative patterns of follicle development and selection in ruminants. J Reprod Fertil Suppl 54 (1999) 17-32
15. Duggavathi R., Bartlewski P.M., Barrett D.M.W., Gratton C., Bagu E.T., and Rawlings N.C. Patterns of antral follicular wave dynamics and accompanying endocrine changes in cyclic and seasonally anestrous ewes treated with exogenous ovine FSH (oFSH) during the inter-wave interval. Biol Reprod 70 (2004) 821-827
16. Duggavathi R., Bartlewski P.M., Agg E., Flint S., Barrett D.M.W., and Rawlings N.C. The effect of the manipulation of FSH-peak characteristics on follicular wave dynamics in sheep: does an ovarian-independent endogenous rhythm in FSH secretion exist?. Biol Reprod 72 (2005) 1466-1474
17. Duggavathi R., Bartlewski P.M., Pierson R.A., and Rawlings N.C. Luteogenesis in cyclic ewes: Echotextural, histological and functional correlates. Biol Reprod 69 (2003) 634-639
18. Joseph I.B.J.K., Currie W.D., and Rawlings N.C. Effects of time after ovariectomy, season and oestradiol on luteinizing hormone and follicle-stimulating hormone secretion in ovariectomized ewes. J Reprod Fertil 94 (1992) 511-523
19. Rawlings N.C., Jeffcoate I.A., and Rieger D.L. The influence of estradiol-17β and progesterone on peripheral serum concentrations of luteinizing hormone and follicle stimulating hormone in the ovariectomized ewe. Theriogenology 22 (1984) 473-488
20. Joseph I.B., Currie W.D., and Rawlings N.C. Effects of time after ovariectomy, season and oestradiol on luteinizing hormone and follicle-stimulating hormone secretion in ovariectomized ewes. J Reprod Fertil 94 (1992) 511-523
21. Clifton D.K., and Steiner R.A. Cycle-detection: a technique for estimating the frequency and amplitude of episodic fluctuations in blood hormone and substrate concentrations. Endocrinology 112 (1983) 1057-1064
22. Bartlewski PM, Beard AP, Rawlings NC. Ultrasonographic study of antral follicular development during sexual maturation in ewe lambs. Small Rumin Res, in press.
23. Singh J., Pierson R.A., and Adams G.P. Ultrasound image attributes of bovine ovarian follicles and endocrine and functional correlates. J Reprod Fertil 112 (1998) 12-29
24. Vassena R., Adams G.P., Mapletoft R.J., Pierson R.A., and Singh J. Ultrasound image characteristics of ovarian follicles in relation to oocyte competence and follicular status in cattle. Anim Reprod Sci 76 (2003) 25-41
25. Duggavathi R, Janardhan K, Singh J, Singh B, Barrett DMW, Davies KL, et al. Patterns of expression of steroidogenic enzymes during the first wave of the ovine estrous cycle as compared to the preovulatory follicle. Anim Reprod Sci 2006;91:345-52.
26. Bartlewski P.M., Beard A.P., and Rawlings N.C. An ultrasonographic study of luteal function in breeds of sheep with different ovulation rates. Theriogenology 52 (1999) 115-130
27. 2α compared with natural luteolysis in the ewe. Ann Biol Anim Biochim Biophys 15 (1975) 175-180
28. 2α. Biol Reprod 14 (1976) 280-291
29. 2α during the early luteal phase in cattle. Theriogenology 31 (1989) 513-524
30. Bartlewski P.M., Beard A.P., Chapman C.L., Nelson M.L., Palmer B., Aravindakshan J., et al. Ovarian responses in GnRH-treated anoestrous ewes: Follicular and endocrine correlates with luteal outcome. Reprod Fertil Develop 13 (2001) 133-142
31. 2α)-induced luteolysis at mid-cycle on antral follicular development and ovulation rate in non-prolific Western white-faced ewes. Biol Reprod 68 (2003) 1403-1412
32. 2α) cause ovulation in anestrous Western White Face ewes?. Theriogenology 66 (2006) 251-259
33. Kesler D.J., Weston P.G., Primental C.A., Troxel T.R., Vincent D.L., and Hixon J.E. Diminution of the in vitro response to luteinising hormone by corpora lutea induced by gonadotropin releasing hormone treatment of post partum suckled beef cows. J Anim Sci 533 (1981) 749-754
34. Singh J., and Adams G.P. Histomorphometry of dominant and subordinate bovine ovarian follicles. Anat Rec 258 (2000) 58-70
35. Singh J., Pierson R.A., and Adams G.P. Ultrasound image attributes of the bovine corpus luteum: Structural and functional correlates. J Reprod Fertil 109 (1997) 35-44