Serotonin is a neurotransmitter that helps regulate many body functions, including mood and appetite, metabolism, and blood flow. Serotonin is produced from the amino acid tryptophan, but this pathway is limited, only a small portion of tryptophan…

Modern beef production increasingly rewards animals that grow at a consistent and predictable rate. In this study, we evaluated whether growth variability in American Angus cattle has a genetic component and whether it could be considered in breeding…

This eighty-four–day study explored the interaction of vitamin A and zinc on growth performance, carcass merit, and trace mineral metabolism in Angus-crossbred steers. Previous research has indicated removal of vitamin A from finishing diets improves…