Cow-Calf Certification Practice Exam

Grazing significantly increases a cow's maintenance energy requirements primarily due to the physical activity and energy expenditure associated with foraging for food. This increase arises from the need for cows to engage in searching, walking, and standing while grazing, which all require additional energy compared to a more sedentary lifestyle.

The correct choice indicates that this increase in maintenance requirement is typically between 10% and 25%. This range accounts for the various factors that influence energy needs, including the quality of forage, the density of grazing, environmental conditions, and the overall health of the cow. Understanding this percentage is crucial as it allows cow-calf operators to make informed decisions when planning nutrition and managing grazing systems to ensure that cows maintain optimal health and productivity. Effective management of grazing can help balance these increased energy demands with appropriate dietary adjustments.