Menadione requirements of chickens selected for prothrombin time.
D000821:Animal Feed / Q000032:analysis; D000818:Animals; D002645:Chickens / Q000502:physiology*; D005838:Genotype; D011517:Prothrombin Time / Q000662:veterinary*; D014812:Vitamin K / Q000032:analysis / Q000378:metabolism*
D014812:Vitamin K