Which feed ingredient would most likely be added to increase energy in livestock diets?

Carbohydrates are the primary source of energy in livestock diets, making them the most effective choice for increasing energy levels. Livestock rely on carbohydrates to provide the necessary fuel for growth, reproduction, and overall health.

When livestock consume carbohydrates, their bodies can quickly break them down into glucose, which is then used for energy. This is particularly important in high-performance animal production systems, where energy demands are elevated.

In contrast, while fiber is a necessary component of diets for certain livestock, it primarily aids in digestion and gut health rather than serving as a primary energy source. Vitamins and minerals, on the other hand, play crucial roles in various physiological processes and metabolic functions, but they do not provide energy directly. Therefore, carbohydrates are the most logical ingredient to increase energy in livestock diets.