Photoperiodic regulation of reproductive activity in the ram: evidence for the involvement of circadian rhythms in melatonin and prolactin secretion.

@article{Almeida1982PhotoperiodicRO,
  title={Photoperiodic regulation of reproductive activity in the ram: evidence for the involvement of circadian rhythms in melatonin and prolactin secretion.},
  author={Osborne F. X. Almeida and Gerald Lincoln},
  journal={Biology of reproduction},
  year={1982},
  volume={27 5},
  pages={
          1062-75
        }
}
Adult Soay rams were housed under long days of 16L:8D for 16 weeks, and then exposed to a lighting regimen of either 8L:40D, 8L:28D, 8L:16D or maintained under 16L:8D. The diameter of the testes and the intensity of the sexual skin flush was recorded every 1-2 weeks, while on four occasions during the 8L:40D and 8L:28D regimens the concentrations of melatonin, prolactin and electrolytes (sodium and potassium) were measured in blood samples collected hourly for 2-4 days. During the initial… CONTINUE READING
BETA

Citations

Publications citing this paper.
SHOWING 1-10 OF 19 CITATIONS

Npas4 Is Activated by Melatonin, and Drives the Clock Gene Cry1 in the Ovine Pars Tuberalis

  • Molecular endocrinology
  • 2013
VIEW 3 EXCERPTS
CITES METHODS & BACKGROUND
HIGHLY INFLUENCED

Ovarian and thyroid activity of the Lacaune ewes breed during the year in Greece

J. MENEGATOS (Ι. ΜΕΝΕΓΑΤΟΣ), S. CHADIO (Σ. ΧΑΔΙΩ), V. DOSOPOULOS (Β. ΔΟΣΟΠΟΥΛΟΣ), D. KALOGIANNIS (Δ. ΚΑΛΟΓΙΑΝΝΗΣ), E. XYLOURI (Ε. ΞΥΛΟΥΡΗ)
  • 2017

Tracking the seasons: the internal calendars of vertebrates.

  • Philosophical transactions of the Royal Society of London. Series B, Biological sciences
  • 2007
VIEW 1 EXCERPT
CITES BACKGROUND

Similar Papers

Loading similar papers…