title: Presence of serotonin in the hen reproductive tract.
mesh_terms: D000818:Animals; D002645:Chickens / Q000502:physiology*; D005260:Female; D005836:Genitalia, Female / Q000032:analysis*; D010058:Oviposition; D012701:Serotonin / Q000032:analysis*
chemical_list: D012701:Serotonin