Archive for the 'Ovariectomized' Category

24 Feb

Pulsatile Luteinizing Hormone Secretion in the Ovariectomized: MATERIALS AND METHODS(2)

Animals and Management Ten mature red deer hinds (mean live weight at the beginning of the study 86.7 ± 4.4 kg) were ovariectomized (n = 5) or ovariectomized and thyroidectomized (THX) (n = 5) early in the breeding season (May 1995). Ovariectomy was performed aseptically by midventral laparotomy under general anesthesia induced by 250 mg […]

23 Feb

Pulsatile Luteinizing Hormone Secretion in the Ovariectomized: MATERIALS AND METHODS(1)

Animals and Management Ten mature red deer hinds (mean live weight at the beginning of the study 86.7 ± 4.4 kg) were ovariectomized (n = 5) or ovariectomized and thyroidectomized (THX) (n = 5) early in the breeding season (May 1995). Ovariectomy was performed aseptically by midventral laparotomy under general anesthesia induced by 250 mg […]

22 Feb

Pulsatile Luteinizing Hormone Secretion in the Ovariectomized, Thyroidectomized Red Deer Hind(2)

Several reports have indicated that opioid peptides are also able to suppress LH concentration in ewes during the nonbreeding season in the absence of gonadal steroids, while others disagree with this finding. The ovariectomized red deer hind presents a unique model for studying such ‘‘steroid-independent’’ mechanisms ofrepro-ductive suppression due to the large seasonal fluctuations in […]

21 Feb

Pulsatile Luteinizing Hormone Secretion in the Ovariectomized, Thyroidectomized Red Deer Hind(1)

The red deer (Cervus elaphus) hind exhibits a circannual cycle of reproductive activity, with periods of estrous cyclicity occurring during winter under shortened ambient photoperiod, similar to that of the ewe. However, recent studies indicate that differences in seasonal gonadotropin secretion patterns exist between the two species. Red deer exhibit dramatic seasonal fluctuations of LH […]

Pages: Prev 1 2 3

© 2008 HIV/AIDS News & Information