Early Fetal to Neonatal Vitamin a Supplementation Improves Growth Performance and Development of Muscle and Pre-Adipocyte in Korean Native Calves.

The article focuses on two studies related to nutritional supplementation in beef cattle. The first study investigated the effects of vitamin A supplementation during early fetal to neonatal stages on growth and muscle development in Korean native calves, finding that such supplementation improved birth and weaning body weights, increased serum vitamin A and glucose levels, and upregulated genes associated with muscle and pre-adipocyte development. The second study evaluated the impact of supplemental methionine or choline on health and growth performance in high-risk receiving beef heifers over three years, concluding that these supplements did not significantly affect dry matter intake, growth metrics, or respiratory morbidity compared to controls. These findings contribute to understanding nutrient strategies for enhancing cattle growth and health.