title: Determining bovine viral diarrhea and infectious bovine rhinotracheitis infections in dairy cattle using precolostral blood.
abstract: The objective of this study was to determine if precolostral blood samples are useful to detect apparent fetal infections with bovine viral diarrhea (BVD) and infectious bovine rhinotracheitis (IBR) viruses. A convenience sample of 317 sera from 50 Canadian herds was used in the study. Antibody level was measured using 2 commercial IBR and BVD ELISA kits. Precolostral status of sera was confirmed on 304 samples using serum gamma-glutamyl transferase activity. Postcolostral serum samples yielded a higher proportion of positive results to IBR (OR = 86; 95% CI: 17.8 to 415.7) and BVD (OR = 199.3; 95% CI: 41.7 to 952.3) than did precolostral samples. All positive precolostral serum samples (n= 7 of 304) originated from calves born to vaccinated cows. Postcolostral positive serum samples (n= 11 of 13) originated mostly (60%) from calves born to non-vaccinated cows. Precolostral serum sampling can detect apparent fetal infections in a herd.
authors.affiliation: Zoetis, 16740 Trans-Canada Highway, Kirkland, Québec H9H 4M7 (Baillargeon); Département de sciences cliniques, Faculté de médecine vétérinaire, Université de Montréal, 3200 rue Sicotte, Saint-Hyacinthe, Québec J2S 2M2 (Arango-Sabogal, Wellemans, Fecteau).
authors.forename: Paul
authors.initials: P
authors.lastname: Baillargeon
authors.affiliation: Zoetis, 16740 Trans-Canada Highway, Kirkland, Québec H9H 4M7 (Baillargeon); Département de sciences cliniques, Faculté de médecine vétérinaire, Université de Montréal, 3200 rue Sicotte, Saint-Hyacinthe, Québec J2S 2M2 (Arango-Sabogal, Wellemans, Fecteau).
authors.forename: Juan C
authors.initials: JC
authors.lastname: Arango-Sabogal
authors.affiliation: Zoetis, 16740 Trans-Canada Highway, Kirkland, Québec H9H 4M7 (Baillargeon); Département de sciences cliniques, Faculté de médecine vétérinaire, Université de Montréal, 3200 rue Sicotte, Saint-Hyacinthe, Québec J2S 2M2 (Arango-Sabogal, Wellemans, Fecteau).
authors.forename: Vincent
authors.initials: V
authors.lastname: Wellemans
authors.affiliation: Zoetis, 16740 Trans-Canada Highway, Kirkland, Québec H9H 4M7 (Baillargeon); Département de sciences cliniques, Faculté de médecine vétérinaire, Université de Montréal, 3200 rue Sicotte, Saint-Hyacinthe, Québec J2S 2M2 (Arango-Sabogal, Wellemans, Fecteau).
authors.forename: Gilles
authors.initials: G
authors.lastname: Fecteau
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D000914:Antibodies, Viral / Q000097:blood*; D001912:Bovine Virus Diarrhea-Mucosal Disease / Q000175:diagnosis / Q000276:immunology / Q000821:virology*; D002170:Canada; D002417:Cattle; D003126:Colostrum / Q000276:immunology; D001908:Diarrhea Viruses, Bovine Viral / Q000276:immunology*; D007242:Herpesvirus 1, Bovine / Q000276:immunology*; D007241:Infectious Bovine Rhinotracheitis / Q000175:diagnosis / Q000276:immunology / Q000821:virology*; D014611:Vaccination / Q000662:veterinary
chemical_list: D000914:Antibodies, Viral