321 Effect of injectable trace mineral on reproductive performance in beef heifers

Abstract

Trace minerals serve an essential role in regulating reproduction. Free-choice trace mineral supplementation is often provided to grazing beef cattle. An injectable tracemineral solution used with free-choice trace minerals may be beneficial before breeding to improve mineral status. Therefore, Red Angus-based, May-born heifers were utilized to determine the effects of an injectable trace mineral on reproductive performance. Pregnancy rates did not differ between heifers injected with a trace mineral and heifers that received no injection. Injectable trace mineral at CIDR insertion 33 d before artificial insemination did not influence reproductive performance in heifers with adequate trace mineral status.

Effects of Maternal Supplementation with an Injectable Trace Mineral Containing Copper, Manganese, Zinc, and Selenium on Subsequent Steer Finishing Phase Performance and Carcass Characteristics

“…For grazing beef cows, supplementation of minerals is needed for optimal reproduction, immune function, lactation, and growth [1][2][3][4]. Trace minerals are present in very low concentrations in the body, but play very important roles in nutrition and regulate many of the critical biological processes.…”