title: Demonstration of estrus-related odors in cow urine by operant conditioning of rats.
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology* / Q000652:urine; D003216:Conditioning, Operant; D004031:Diestrus; D004971:Estrus; D004972:Estrus Detection; D005260:Female; D008297:Male; D009812:Odorants / Q000032:analysis*; D000857:Olfaction Disorders / Q000503:physiopathology; D011247:Pregnancy; D051381:Rats; D011919:Rats, Inbred Strains / Q000502:physiology*; D012903:Smell / Q000502:physiology*; D014556:Urine / Q000032:analysis*