Effect of Complex Trace Minerals on Reproductive Performance of Beef and Dairy Cattle

Abstract

Providing balanced nutrients is critical for maintaining cow fertility. Adequate trace mineral intake and absorption is required for proper functioning of many metabolic processes associated with reproduction. Reproductive performance of cattle may be compromised if zinc, copper, or manganese status is in the marginal-to-deficient range. Common copper deficiency symptoms in cattle include delayed or suppressed estrus, decreased conception, infertility and embryo death. Inadequate zinc levels have been associated with decreased fertility, abnormal estrus, abortion and altered myometrial contractibility with prolonged labor. Manganese deficiency in cows results in suppression of conception rates, delayed estrus in both post-partum females and young prepuberal heifers, infertility, abortion, immature ovaries and dystocia. This study evaluated the effect on reproduction from feeding complex trace to beef cattle.