title: Attenuation of Eimeria tenella through selection for precociousness.
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000469:parasitology; D001717:Birds / Q000469:parasitology; D002432:Cecum / Q000469:parasitology; D002645:Chickens / Q000469:parasitology; D004539:Eimeria / Q000254:growth & development / Q000472:pathogenicity*; D005260:Female; D007814:Larva; D009865:Oocytes / Q000648:ultrastructure; D012641:Selection, Genetic; D013045:Species Specificity