What is the term for a mixture of feedstuffs used to provide nutrients to animals?

The term that accurately describes a mixture of feedstuffs used to provide nutrients to animals is "ration." A ration refers specifically to the total amount of feed a single animal receives in a day, encompassing all types of feed provided. This term is important in animal nutrition as it reflects the balanced approach to meeting an animal’s dietary needs through various feed components. A ration is designed to ensure that animals obtain the proper nutrients, including proteins, carbohydrates, fats, vitamins, and minerals, necessary for their health and optimal performance.

While "diet" generally refers to the overall eating habits or the types of food consumed by an animal over a longer timeframe, it does not specifically indicate a mixture or the specific quantities provided. "Blend" and "formula" are terms that could imply a mixture, but they lack the specific context of daily nutrient provision associated with "ration." Thus, "ration" best captures the essence of a daily mixture of feedstuffs tailored to meet the nutritional needs of the animal.