title: Influence of photoperiod on PMSG-induced nest-building in canaries.
mesh_terms: D000818:Animals; D002171:Canaries / Q000502:physiology*; D005241:Feathers; D005260:Female; D006064:Gonadotropins, Equine / Q000494:pharmacology*; D008027:Light; D009425:Nesting Behavior; D010060:Ovulation / Q000187:drug effects; D010507:Periodicity; D013997:Time Factors
chemical_list: D006064:Gonadotropins, Equine