Epidemiology of parasitic gastro-enteritis in sheep.
D000821:Animal Feed; D000818:Animals; D005759:Gastroenteritis / Q000453:epidemiology / Q000662:veterinary*; D009349:Nematode Infections / Q000453:epidemiology / Q000517:prevention & control / Q000662:veterinary*; D012621:Seasons; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology* / Q000517:prevention & control; D014252:Trichostrongyloidiasis / Q000453:epidemiology / Q000517:prevention & control / Q000662:veterinary*; D014887:Weather