title: Effects of transfer of Ostertagia ostertagi between northern and southern U.S.A. on the pattern and frequency of hypobiosis.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000469:parasitology*; D002980:Climate; D005260:Female; D008297:Male; D010028:Ostertagia / Q000502:physiology*; D010029:Ostertagiasis / Q000469:parasitology / Q000662:veterinary*; D012621:Seasons; D014252:Trichostrongyloidiasis / Q000662:veterinary*; D014481:United States