Pineal function in the sheep: evidence for a possible mechanism mediating seasonal reproductive activity.
D000818:Animals; D002940:Circadian Rhythm; D004971:Estrus; D005260:Female; D008550:Melatonin / Q000097:blood; D010870:Pineal Gland / Q000502:physiology*; D011247:Pregnancy; D012098:Reproduction; D012621:Seasons; D012756:Sheep
D008550:Melatonin