Sam the 40 kilo active Boxer gets 3 - 4 cups of dinner plus some doggie biscuits & other treats through the day
Scarlett the 29 kilo (on a diet) inactive Boxer gets 2 cups plus fruit for treats & 1 or 2 biscuits at breakfast
Sonny the 8 kilogram Cavalier gets offered 1 cup plus treats & biscuits at breakfast
Beau the rapidly growing Cavalier puppy woofs down 2 meals of 1/2 cup each pluse treats & biscuits at breakfast. I also up his protein intake with something extra like a bit of cheese, some egg, etc.
I am weighing the dogs to monitor their progress at the moment. I am wanting Sam & Sonny to maintain their already healthy weights, whilst I need Scarlett to lose some & of course I'm wanting to grow the puppy.
Here is a table of calories required for a healthy, active adult dog. It is only part of a larger table from "Complete Dog Care Manual" by Dr Bruce Fogle
Toy 5kg (11 lbs) = 210 calories
Small 10 kg (22 lbs) = 590 calories
Medium 20 kg (44 lbs) = 900 calories
Large 40 kg (88 lbs) = 1680 calories
Giant 80 kg (176 lbs) = 2800 calories
The above calories is for the entire day & must take into account treats given. Of course it needs to be adjusted for the elderly, inactive, overweight or the rapidly growing puppy.