Milk prolactin is biologically active.
D000818:Animals; D002417:Cattle; D005260:Female; D006041:Goats; D066298:In Vitro Techniques; D008321:Mammary Glands, Animal / Q000187:drug effects; D008892:Milk / Q000032:analysis / Q000502:physiology*; D011388:Prolactin / Q000032:analysis / Q000502:physiology*; D011817:Rabbits; D011863:Radioimmunoassay
D011388:Prolactin