Average Daily Gain Calculator
Average daily gain, or ADG, is how much weight an animal put on each day over a period. Enter two weighings and the number of days between them.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
How it works
Subtract the starting weight from the ending weight to get the total gain. Divide that by the number of days for the average gain each day.
Weigh under the same conditions each time, at a similar hour and on the same scale. That way the change reflects growth, not water or feed in the gut.
Worked example
An animal that went from 500 lb to 650 lb in 90 days gains 1.67 lb each day on average.
Questions
Why weigh at the same time of day?
Weight shifts with what an animal has eaten and drunk. A morning weighing before feeding gives the most steady numbers.
What counts as a good gain?
That depends on the animal, its age and your goal. Compare your figure with the target your breeder or feed supplier gives you.
Are short periods reliable?
Short periods can swing with weather and handling. Longer periods give a steadier average.
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