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2. The response of rams and ewes of three breeds to artificial photoperiod. Poulton AL, Robinson TJ. J Reprod Fertil; 1987 Mar; 79(2):609-26. PubMed ID: 3572891 [Abstract] [Full Text] [Related]
3. Suppression of the secretion of luteinizing hormone due to isolation/restraint stress in gonadectomised rams and ewes is influenced by sex steroids. Tilbrook AJ, Canny BJ, Serapiglia MD, Ambrose TJ, Clarke IJ. J Endocrinol; 1999 Mar; 160(3):469-81. PubMed ID: 10076193 [Abstract] [Full Text] [Related]
4. 'Hamster-like' cycles in testicular size in the absence of gonadotrophin secretion in HPD rams exposed to long-term changes in photoperiod and treatment with melatonin. Lincoln GA, Clarke IJ, Sweeney T. J Neuroendocrinol; 1996 Nov; 8(11):855-66. PubMed ID: 8933363 [Abstract] [Full Text] [Related]
5. Olfactory bulb removal does not prevent gonadotropin or prolactin responses to changing photoperiod in the ewe. Jansen HT, Jackson GL. Neuroendocrinology; 1993 Mar; 57(3):448-56. PubMed ID: 8321417 [Abstract] [Full Text] [Related]
6. Changes in pituitary responsiveness to luteinizing hormone releasing hormone in rams exposed to artificial photoperiods. Lincoln GA. J Endocrinol; 1977 Jun; 73(3):519-27. PubMed ID: 327009 [Abstract] [Full Text] [Related]
7. Effects of adrenalectomy on photoperiod-induced changes in release of luteinizing hormone and prolactin in ovariectomized ewes. Schillo KK, Green MA, Hayes SH. J Reprod Fertil; 1988 May; 83(1):431-8. PubMed ID: 3397951 [Abstract] [Full Text] [Related]
8. Endogenous opioid control of pulsatile LH secretion in rams: modulation by photoperiod and gonadal steroids. Lincoln GA, Ebling FJ, Martin GB. J Endocrinol; 1987 Dec; 115(3):425-38. PubMed ID: 3443805 [Abstract] [Full Text] [Related]
9. Light-induced sexually active rams prevent the seasonal inhibition of luteinizing-hormone in ovariectomized estradiol-implanted ewes. Abecia JA, Keller M, Palacios C, Chemineau P, Delgadillo JA. Theriogenology; 2019 Sep 15; 136():43-46. PubMed ID: 31242457 [Abstract] [Full Text] [Related]
13. Interaction of season and estradiol in the regulation of gonadotropin secretion in the adult ram. Sanford LM, Robaire B. Can J Physiol Pharmacol; 1990 Feb 15; 68(2):150-6. PubMed ID: 2107016 [Abstract] [Full Text] [Related]
14. Do endogenous opioid peptides mediate the effects of photoperiod on release of luteinizing hormone and prolactin in ovariectomized ewes? Schillo KK, Kuehl D, Jackson GL. Biol Reprod; 1985 May 15; 32(4):779-87. PubMed ID: 4005347 [Abstract] [Full Text] [Related]
15. Photoperiodic modulation of monoamines and amino-acids involved in the control of prolactin and LH secretion in the ewe: evidence for a regulation of tyrosine hydroxylase activity. Viguié C, Thibault J, Thiéry JC, Tillet Y, Malpaux B. J Neuroendocrinol; 1996 Jun 15; 8(6):465-74. PubMed ID: 8809677 [Abstract] [Full Text] [Related]
16. Profiles of luteinizing hormone, follicle-stimulating hormone, testosterone and prolactin in rams of diverse breeds: effects of contrasting short (8L:16D) and long (16L:8D) photoperiods. D'Occhio MJ, Schanbacher BD, Kinder JE. Biol Reprod; 1984 Jun 15; 30(5):1039-54. PubMed ID: 6428476 [Abstract] [Full Text] [Related]
17. Circannual cycles of luteinizing hormone and prolactin secretion in ewes during prolonged exposure to a fixed photoperiod: evidence for an endogenous reproductive rhythm. Karsch FJ, Robinson JE, Woodfill CJ, Brown MB. Biol Reprod; 1989 Dec 15; 41(6):1034-46. PubMed ID: 2624864 [Abstract] [Full Text] [Related]