Ovarian responses in gonadotrophin-releasing hormone-treated anoestrous ewes: Follicular and endocrine correlates with luteal outcome

Reproduction, Fertility and Development

Volumn 13, Issue 2-3, 2001, Pages 133-142

  Bartlewski, P M ^a   Beard, A P ^a   Chapman, C L ^a   Nelson, M L ^a   Palmer, B ^a   Aravindakshan, J ^a   Cook, S J ^a   Rawlings, N C ^a  

^a UNIVERSITY OF SASKATCHEWAN   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ESTRADIOL; FOLLITROPIN; GONADORELIN; LUTEINIZING HORMONE; PROGESTERONE;

AGE; ANESTRUS; ANIMAL EXPERIMENT; ANIMAL MODEL; ANIMAL TISSUE; ANOVULATION; ARTICLE; CONCENTRATION RESPONSE; CONTROLLED STUDY; CORPUS LUTEUM; CORRELATION FUNCTION; ENDOCRINE FUNCTION; FEMALE; HORMONE RELEASE; LIFESPAN; LUTEAL INSUFFICIENCY; NONHUMAN; OVARY FOLLICLE; OVARY FOLLICLE DEVELOPMENT; OVARY FUNCTION; OVULATION; SHEEP; STIMULUS RESPONSE; TRANSRECTAL ULTRASONOGRAPHY; TREATMENT OUTCOME;

ANIMALIA; OVIS; OVIS ARIES;

EID: 0034780005     PISSN: 10313613     EISSN: None     Source Type: Journal    
DOI: 10.1071/rd00092     Document Type: Article

References (49)

1. Luteotrophic control of the corpus luteum
2. Ovarian follicular dynamics during anoestrus in ewes
3. Ovarian antral follicle dynamics and their relationships with endocrine variables throughout the oestrous cycle in breeds of sheep differing in prolificacy
4. An ultrasonographic study of luteal function in breeds of sheep with different ovulation rates
5. Ovarian function in ewes at the onset of the breeding season
6. Ovarian function in ewes during the transition from the breeding season to anoestrus
7. An ultrasound-aided study of temporal relationships between the patterns of gonadotrophin secretion, follicular wave development and formation of corpora lutea in the ewe
8. Ultrasonographic study of ovarian function during early pregnancy and after parturition in the ewe
9. Effects of bovine follicular fluid and exogenous oestradiol on the GnRH-induced short luteal phase in anoestrous ewes
10. Effects of progesterone pretreatment on the oxytocin receptor concentration and the response to oxytocin during the stimulated early luteal phase in ovariectomized ewe
11. Effects of exogenous oxytocin and progesterone on GnRH-induced short luteal phases in anoestrous ewes
12. 2 release in ewes
13. Ultrasonography and endocrinology of ovarian dysfunction induced in heifers with estradiol valerate
14. Cycle detection: A technique for estimating the frequency and amplitude of episodic fluctuations in blood hormone and substrate concentrations
15. Prolonged infusion of morphine and naloxone in the ewe: Fluctuations in responsiveness of LH and lack of responsiveness of FSH
16. Follicular steroidogenesis and gonadotrophin binding to ovine follicles during the oestrous cycle
17. Mechanisms associated with corpus luteum lifespan in animals having normal and subnormal luteal function
18. Comparison of LH release and luteal function in cyclic and LH-RH-treated anoestrous ewes pretreated with PMSG or oestrogen
19. Day of estrous cycle affects follicular dynamics after induced luteolysis in ewes
20. Ovulation rate and subsequent lamb production in the nulliparous and primiparous ewe
21. Treatment with progesterone affects follicular steroidogenesis in anoestrous ewes
22. Progesterone pretreatment has a direct effect on GnRH induced preovulatory follicles to determine their ability to develop into normal corpora lutea in anoestrous ewes
23. Function of abnormal corpora lutea in vitro after GnRH-induced ovulation in the anoestrous ewes
24. Effects of time after ovariectomy, season and oestradiol on luteinizing hormone and follicle-stimulating hormone secretion in ovariectomized ewes
25. Diminution of the in vitro response to luteinising hormone by corpora lutea induced by gonadotropin releasing hormone treatment of post partum suckled beef cows
26. Effect of progesterone pre-treatment on steroid secretion rates and follicular fluid insulin-like growth factor-1 concentrations in seasonally anoestrous ewes treated with gonadotrophin releasing hormone
27. Does the seasonal increase in estradiol negative feedback prevent luteinizing hormone surges in anestrous ewes by suppressing hypothalamic gonadotropin-releasing hormone pulse frequency?
28. Importance of short luteal phases in the endocrine mechanism controlling initiation of estrous cycles in anestrous ewes
29. Effects of follicular status at the treatment on follicular development and ovulation in response to FSH in Spanish Merino ewes
30. Evidence that progesterone may influence subsequent luteal function in the ewe by modulating preovulatory follicle development
31. The induction of ovulation and luteal function in seasonally anoestrous ewes treated with small-dose multiple injections of Gn-RH
32. Response of seasonally anoestrous ewes to small-dose multiple injections of Gn-RH with and without progesterone pretreatment
33. Evidence that changes in luteinizing hormone secretion regulate the growth of the preovulatory follicle in the ewe
34. Effects of progesterone on the responses of Merino ewes to the introduction of rams during anoestrus
35. Growth factors and antral follicle development in domestic ruminants
36. Luteal function after ovulation blockade by intrafollicular injection of indomethacin in the ewe
37. The corpus luteum and its control
38. Laparoscopy in the ewe: A photographic record of the ovarian activity of ewes experiencing normal or abnormal oestrous cycles
39. Morphometric analysis and function in vivo and in vitro of corpora lutea from ewes treated with LHRH during seasonal anoestrus
40. Corpora lutea with a short-lifespan induced by rams in seasonally anovulatory ewes are prevented by progesterone delaying the preovulatory surge of LH
41. Ultrasonographic study of ovarian follicular dynamics in ewes during the oestrous cycle
42. The influence of estradiol 17-β and progesterone on peripheral serum concentrations of luteinizing hormone and follicle-stimulating hormone in ovariectomized ewes
43. Response of purebred and crossbred ewes to intensified management
44. Control and regulation of folliculogenesis: A symposium in perspective
45. 2α and GnRH given at different stages of the luteal phase in cyclic ewes
46. Ovarian structures during the estrous cycle and early pregnancy in ewes
47. Function of abnormal corpora lutea in vivo after GnRH-induced ovulation in the anoestrous ewe
48. Ovarian follicular development during the rat estrous cycle: Gonadotrophin receptors and follicular responsiveness
49. Factors affecting folliculogenesis in ruminants