Experimental ascaridiasis: influence of chicken age and infective egg dose on structure of Ascaridia galli populations.
D000367:Age Factors; D000818:Animals; D000917:Antibody Formation; D001196:Ascariasis / Q000276:immunology / Q000662:veterinary*; D001200:Ascaris / Q000254:growth & development / Q000302:isolation & purification; D007422:Intestines / Q000473:pathology; D011201:Poultry Diseases