Route of administration determines effectiveness of single-use trace mineral products in beef cattle

Abstract

An injectable trace mineral product increased plasma Mn, Se, and Zn concentrations within 8 h and liver Se concentrations through d 29. These products are an effective way to rapidly increase trace mineral status as they are delivered directly into the blood stream. Boluses did not increase liver mineral (Se) concentrations until 120 days after administration, suggesting these products may be an effective strategy to improve trace mineral status in the long-term. Products that were administered orally (drenches and pastes) had minimal effects on plasma and liver mineral concentrations, likely because interaction with dietary antagonists hindered trace mineral absorption. Beef cattle producers should select single-use trace mineral products based on how quickly a status change is needed.