How much food does a rat typically require daily?

• A. 1/2 oz
• B. 1 oz
• C. 2 oz
• D. 3 oz

Answer: (B)

Rats need only a modest amount of food each day, and a practical rule of thumb used in vertebrate pest management is about one ounce daily (roughly 28 grams). This amount reflects the typical energy needs of an adult rat and is handy for planning baiting, replenishment, and understanding how quickly available food can be consumed. Actual intake varies with species and size (Norway vs. roof rats), age, activity, and whether food is abundant; juveniles eat less, while very active or larger individuals may approach or exceed this amount, but one ounce remains a common, useful estimate. Half an ounce would generally be too little for a typical adult, while two or three ounces would be more than the usual daily need for most rats in normal conditions.