ADG is a commonly used term in the livestock industry, referring to the average daily gain of an animal. Synonyms for ADG include average daily weight gain, daily weight gain, or simply weight gain per day. These terms are all used to describe how much an animal grows in terms of weight, on a daily basis. Another synonym that may be used in a more general sense is growth rate or daily growth rate, which refers to the rate at which an animal is growing in size or weight. These terms are all important for farmers and livestock producers to monitor in order to ensure optimal growth and health of their animals.