Up to 15 lbs. - ¼ – 1 cup* 16 to 25 lbs. - 1 – 1 ½ cups* 26 to 40 lbs. - 1 ½ – 2 ¼ cups* 41 to 60 lbs. - 2 ¼ – 3¼ cups* 61 to 80 lbs. - 3¼ – 4 cups* 81 to 100 lbs. - 4 – 4 ½ cups* Over 100 lbs. - Feed