JFHMS Quality Assurance Practice Exam

In cow/calf operations, protein is often the first nutrient to be supplemented due to its vital role in growth and overall health of both the cows and their calves. Protein is essential for the development of muscle, tissues, and the immune system, which is crucial during critical periods such as gestation and lactation.

When cows are in early gestation or when the calves are nursing, their protein requirements increase significantly. Supplementing protein helps to ensure that both the cow and the calf receive sufficient nutrients necessary for optimal growth and milk production. Inadequate protein levels can lead to reduced weight gain in calves and poor milk production in cows, affecting the overall productivity of the operation.

While water is indeed essential for all livestock and should always be available, it is not typically supplemented in the same way as protein, vitamins, or fats. Vitamins can also be essential, but the immediate impact of protein supplementation on growth and productivity makes it a priority in many herd management plans.