Feeds given to animals solely to sustain their live weight is called

Feeds given to animals solely to sustain their live weight is called a maintenance ration. The purpose of a maintenance ration is to provide the necessary nutrients for an animal to maintain its body weight and support basic bodily functions, such as respiration and digestion. This type of ration is typically given to animals that are not being raised for production purposes, such as breeding stock or animals that are not yet old enough for production. The amount and composition of a maintenance ration will vary depending on the animal's species, age, weight, and level of physical activity.