Left abomasal displacement: an epidemiological study.
D000018:Abomasum; D000367:Age Factors; D000821:Animal Feed; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006799:Housing, Animal; D009864:Ontario; D011247:Pregnancy; D012621:Seasons