title: Effects of breed and date of birth of lambs on gastrointestinal nematode infections.
mesh_terms: D000821:Animal Feed; D000818:Animals; D001947:Breeding; D005260:Female; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology / Q000662:veterinary*; D009349:Nematode Infections / Q000662:veterinary*; D012621:Seasons; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D013045:Species Specificity; D013272:Stomach Diseases / Q000453:epidemiology / Q000662:veterinary*; D013322:Strongyloidiasis / Q000453:epidemiology / Q000662:veterinary; D013997:Time Factors; D014252:Trichostrongyloidiasis / Q000453:epidemiology / Q000662:veterinary; D014257:Trichuriasis / Q000453:epidemiology / Q000662:veterinary; D014887:Weather