When the environmental temperature drops below 30 degrees F, what should be supplemented in a young calf's diet?

When the environmental temperature drops below 30 degrees Fahrenheit, the primary concern for young calves is maintaining their body temperature and energy levels. In cold conditions, calves expend more energy to generate heat and stay warm. As a result, it is essential to supplement their diet with additional energy sources.

Energy can be supplied through high-quality feeds, such as whole milk or milk replacer that contain appropriate fats and carbohydrates. These energy sources help the calf maintain its metabolic functions and overall health, reducing the risk of hypothermia and associated health issues. Providing this energy support is crucial because young calves have relatively low energy reserves and are less efficient at regulating their body temperature. Thus, ensuring an adequate energy intake is vital for their growth, development, and survival in colder temperatures.