title: Photoperiodic control of the onset of breeding activity and fecundity in ewes.
authors.forename: D J
authors.initials: DJ
authors.lastname: Kennaway
authors.forename: E A
authors.initials: EA
authors.lastname: Dunstan
authors.forename: L D
authors.initials: LD
authors.lastname: Staples
mesh_terms: D000818:Animals; D001947:Breeding; D005260:Female; D005298:Fertility / Q000187:drug effects; D008027:Light; D008550:Melatonin / Q000494:pharmacology; D012621:Seasons; D012756:Sheep / Q000502:physiology*
chemical_list: D008550:Melatonin