Up to 15 lbs. 1-2 – 1 ¼ cups* 16 to 25 lbs. 1 ¼ – 1 ¾ cups* 26 to 40 lbs. 1 ¾ – 2 ½ cups* 41 to 60 lbs. 2 ½ – 3 ½ cups* 61 to 80 lbs. 3 ½ – 4 ¼ cups* 81 to 100 lbs. 4 ¼ – 5 cups* Over 100 lbs. Feed 5