title: [Selenium deficiency as a cause of secondary retention of the placenta in a herd of dairy cattle].
abstract: A farm is described, on which the placenta was retained in approximately forty per cent of the cows and on which selenium deficiency (0.03 +/- 0.010 micrograms/ml) and unduly reduced activity of glutathione peroxidase (GSH-Px) in the erythrocytes (65.2 +/- 26.4 u/g Hb) were observed. When 0.5 mg of Se per kg of dry matter of a mixture of concentrated feeds were added, the concentrations of Se and GSH-Px were restored to normal and the symptom consisting in retained placentae disappeared. This incident shows that selenium deficiency occurs in the Netherlands.
authors: Stichting Gezondheidsdienst voor Dieren, Boxtel.
authors: G H
authors: GH
authors: Wentink
authors: J A
authors: JA
authors: Duivelshof
authors: G H
authors: GH
authors: Counotte
mesh_terms: D000821:Animal Feed / Q000592:standards; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000097:blood / Q000209:etiology*; D004912:Erythrocytes / Q000201:enzymology; D005260:Female; D005979:Glutathione Peroxidase / Q000097:blood; D010922:Placenta Diseases / Q000097:blood / Q000209:etiology / Q000662:veterinary*; D011247:Pregnancy; D012643:Selenium / Q000172:deficiency*
chemical_list: D005979:Glutathione Peroxidase; D012643:Selenium
vernacular_title: Selenium-gebrek als oorzaak van retentio secundinarum bij een koppel melkvee.