Ovarian activity during sexual maturation and following introduction of the ram to ewe lambs

Small Ruminant Research

Volumn 43, Issue 1, 2002, Pages 37-44

  Bartlewski, P M ^a   Beard, A P ^b   Cook, S J ^c   Rawlings, N C ^c  

^a UNIVERSITY OF SASKATCHEWAN   (Canada)

^b NEWCASTLE UNIVERSITY   (United Kingdom)

^c UNIVERSITY OF SASKATCHEWAN   (Canada)

Author keywords

Ewe lamb; Follicular dynamics; Luteal function; Ram effect; Ultrasonography

Indexed keywords

LAMB; OVIS; OVIS ARIES;

EID: 0036183765     PISSN: 09214488     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0921-4488(01)00253-X     Document Type: Article

References (36)

1. Metabolic clearance and secretion rate of gonadotrophin at different stages of the oestrous cycle in ewes
2. Effect of the introduction of rams on the pulsatile release of luteinizing hormone and the onset of reproductive activity in ewe lambs
3. Ovarian follicular dynamics during anoestrus in ewes
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. Effects of exogenous oxytocin and progesterone on GnRH-induced short luteal phases in anoestrous ewes
7. Source of circulating progesterone in prepubertal ewes
8. Prolonged infusion of morphine and naloxone in the ewe: Fluctuation in responsiveness of LH and lack of responsiveness of FSH
9. Ram influence on ovarian and sexual activity in anoestrous ewes: Effects of isolation of ewes from rams before joining and date of ram introduction
10. Attainment of puberty and reproductive performance in Clun Forest ewe lambs
11. Seasonal effects and hormonal patterns related to puberty in ewe lambs
12. Growth and sexual maturation in ewes: The role of photoperiod, diet and temperature on growth rate and the control of prolactin, thyroxine and luteinizing hormone secretion
13. Mechanism governing onset of ovarian cyclicity at puberty in the lamb
14. Sequential patterns of circulating luteinizing hormone and follicle-stimulating hormone in female sheep from early postnatal life through the first estrous cycle
15. Neuroendocrine control of the ovine estrous cycle
16. Reproductive cycles
17. First luteal tissue in ewe lambs: Influence on subsequent ovarian activity and response to hysterectomy
18. The post-natal development of the ovary and uterus of the Merino lamb
19. Endocrine regulation of puberty in cows and ewes
20. Number of oocytes present at birth in the ovaries of pure and Finnish Landrace cross Blackface and Welsh sheep
21. Ovulation and fertilization in the lamb
22. The hormonal control of ovulation in the immature lamb
23. The induction of oestrus and ovulation in seasonally anovular ewes by exposure to rams
24. The physiological response of anovulatory ewes to the introduction of rams. A review
25. Advancing first estrus in ewe lambs
26. Importance of non-ovulatory ram stimuli in mediating ram-induced ovulation in the ewe
27. Ultrasonographic study of follicular dynamics in ewes during the oestrous cycle
28. Influence of rams on ovarian activity and oestrus in Merino ewes in the spring and early summer
29. Effect of naloxone on gonadotrophin secretion at various stages of development in the ewe lamb
30. The influence of oestradiol 17-β and progesterone on peripheral serum concentrations of luteinizing hormone and follicle stimulating hormone in the ovariectomized ewes
31. Control of the surge release of LH and FSH in oestradiol- and progesterone-treated ovariectomized ewes
32. The influence of the introduction of rams on the incidence of oestrus in Merino ewes
33. The effect of the presence of the ram on the ovarian activity of the ewe
34. Ovarian structures during the estrous cycle and early pregnancy in ewes