title: High sulfur related thiamine deficiency in cattle: A field study.
abstract: Following development of polioencephalomalacia in one of 105 cattle in a farm in southeastern Saskatchewan, a study was initiated to monitor thiamine (B(1)) and copper (Cu) status, and to evaluate interactive nutritional factors which may have been responsible for this occurrence. It was evident that a combination of high sulfur (S) and low Cu intake was responsible for the depletion of blood B(1) and plasma Cu. Supplementation with trace minerals alone resulted in a significant (p<0.05) improvement in both B(1) and Cu status of the herd. We recommend that herds exposed to high intakes of S be supplemented with Cu up to 50 mg/kg feed dry matter to alleviate potential deficiencies of B(1) and Cu.
authors.forename: S R
authors.initials: SR
authors.lastname: Gooneratne
authors.forename: A A
authors.initials: AA
authors.lastname: Olkowski
authors.forename: R G
authors.initials: RG
authors.lastname: Klemmer
authors.forename: G A
authors.initials: GA
authors.lastname: Kessler
authors.forename: D A
authors.initials: DA
authors.lastname: Christensen