Which term describes a lack of essential nutrients?

• A. Grazing
• B. Rotational grazing
• C. Lack of essential nutrients
• D. Silage

Answer: (C)

When animals don’t receive enough of the nutrients their bodies must have from the diet, they experience a deficiency or malnutrition. The term that directly describes this lack is the lack of essential nutrients, because it names the condition itself—that some required nutrients are missing or insufficient. Essential nutrients are the nutrients the animal cannot synthesize in adequate amounts, so they must come from feed. A deficiency can lead to slower growth, weaker immunity, poor reproduction, and reduced production.

The other terms refer to feeding practices or feed types, not the nutritional status. Grazing describes how animals feed on pasture, rotational grazing is a management plan to optimize forage use, and silage is preserved forage fed to animals.