Overwinter survival of Dictyocaulus viviparus.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000469:parasitology; D004021:Dictyocaulus / Q000502:physiology*; D004022:Dictyocaulus Infections / Q000469:parasitology; D005243:Feces / Q000469:parasitology; D008681:Metastrongyloidea / Q000502:physiology*; D006109:Poaceae / Q000469:parasitology; D012621:Seasons