What is the term for the amount of feed consumed by an animal in a day?

The term for the amount of feed consumed by an animal in a day is known as a "ration." This term is specifically used in animal nutrition to refer to the total quantity and quality of feed provided to an animal daily in order to meet its dietary needs. A ration encompasses the specific types and amounts of feed that contribute to an animal's overall nutrition, including not just the quantity but also the nutritional composition necessary for growth, maintenance, or production.

While "diet" relates to the overall food habits of an animal, including what they eat over a longer time frame, it doesn't specifically quantify the amount consumed in a day. "Intake" can refer to how much an animal consumes, but it is more generalized and does not denote a structured feeding plan. "Feed rate" typically describes how quickly feed is consumed but does not define the total amount in a daily context. Thus, "ration" is the most accurate and appropriate term for the daily amount of feed consumed by an animal.