The researchers studied how different stocking rates and corn gluten feed supplementation affected the performance of pregnant second-calf heifers grazing on tall fescue-red clover pastures during winter. They divided the pastures into different sections and fed the heifers accordingly. The heifers grazing at a lower stocking rate had higher body weight than those at a higher stocking rate. Animals in the drylot were fed hay, while those in the pastures were supplemented with corn gluten feed to maintain their body condition. The researchers found that the hay had higher protein and digestibility levels compared to the stockpiled forage. Overall, the study showed that managing stocking rates and supplementation can impact the health and weight of grazing heifers during winter.