title: Field surveys on coccidial infection in broilers in Japan--results obtained in autumn and winter and summarized in 1973.
mesh_terms: D000818:Animals; D002645:Chickens; D003048:Coccidiosis / Q000453:epidemiology / Q000662:veterinary*; D007564:Japan; D011201:Poultry Diseases / Q000453:epidemiology*; D012621:Seasons