Observations on the establishment of Polymorphus minutus (Acanthocephala) in the intestines of domestic ducks.
D000818:Animals; D004372:Ducks; D006373:Helminthiasis / Q000209:etiology / Q000473:pathology; D006374:Helminthiasis, Animal; D006376:Helminths / Q000254:growth & development*; D007422:Intestines / Q000473:pathology*; D008722:Methods; D011201:Poultry Diseases / Q000473:pathology*; D013997:Time Factors