title: [Indirect and direct determination of selenium levels in the blood of cows with left side displacement of the abomasum].
abstract: The selenium level in the blood of cows with left-side displacement of the abomasum (group A, n = 13), healthy herdmates (group B, n = 13), and healthy cows of a neighboring herd free of abomasal displacement (group C, n = 13) was determined indirectly (glutathione peroxidase activity of the erythrocytes) and directly (atomic absorbtion spectroscopy). The cows of groups A, B, and C were similar in terms of the directly and indirectly determined selenium levels of the blood. It is therefore assumed that the selenium level of the blood does not play a causative role in the occurrence of abomasal displacement in cows. By indirect determination higher selenium levels were measured than by the direct method. Possible reasons for this are discussed.
authors.affiliation: Medizinischen und Gerichtlichen Veterinärklinik II (Innere Krankheiten der Wiederkäuer, Justus-Liebig-Universität Giessen.
authors.forename: T
authors.initials: T
authors.lastname: Geishauser
authors.forename: M
authors.initials: M
authors.lastname: Weiser
authors.forename: K L
authors.initials: KL
authors.lastname: Zibell
mesh_terms: D000018:Abomasum / Q000002:abnormalities* / Q000098:blood supply; D000818:Animals; D002417:Cattle; D004912:Erythrocytes / Q000201:enzymology; D005260:Female; D005979:Glutathione Peroxidase / Q000097:blood*; D008055:Lipids / Q000097:blood; D012016:Reference Values; D012643:Selenium / Q000097:blood*; D012710:Serum Albumin, Bovine / Q000032:analysis; D013054:Spectrophotometry, Atomic / Q000379:methods
chemical_list: D008055:Lipids; D012710:Serum Albumin, Bovine; D005979:Glutathione Peroxidase; D012643:Selenium