[Sharp metal impurities in feeds is a cause of duck diseases and losses].
D000818:Animals; D005547:Foreign Bodies / Q000662:veterinary*; D008670:Metals; D011201:Poultry Diseases / Q000209:etiology*
D008670:Metals
Ostrye metallicheskie primesi v kormakh--prichina zabolevaniĭ i otkhoda utok.