Reduction of the colouring matter interfering with sex hormone determination in the urine of farm animals.
D000821:Animal Feed; D000818:Animals; D000829:Animals, Domestic; D000872:Anthocyanins; D002338:Carotenoids; D055598:Chemical Phenomena; D002621:Chemistry; D005260:Female; D005419:Flavonoids; D012739:Gonadal Steroid Hormones / Q000652:urine*; D011247:Pregnancy; D011258:Pregnancy Tests / Q000662:veterinary; D012098:Reproduction; D012756:Sheep / Q000502:physiology; D013053:Spectrophotometry; D013552:Swine / Q000502:physiology
D000872:Anthocyanins; D005419:Flavonoids; D012739:Gonadal Steroid Hormones; D002338:Carotenoids