How much to feed your dog? (2/3)

This is the second part of the 2-part mini-course "how much to feed your dog". Knowing how much to feed your dog of a particular brand of dog food helps in preventing overweight and obesity related diseases in your dog.

Let's first look into the analysis of dog food. This is one step we need to take before we can calculate how much to feed your dog.

“A dog is the only thing on earth that loves you more than he loves himself.”
- Josh Billings -

Dog Food Analysis

Now look at the back of your dog food bag; the crude analysis that should be there next to the ingredient statement.

I'm using the Weender Dog Food Analysis method.

Example dog food

Picture of a dog by Euromagic
  • Crude protein: 26 %
  • Crude fat: 12 %
  • Ash/minerals: 8 %
  • Crude plant cell products: 1.5 %
  • Moisture: 6.5%

The exact wording may differ on your dog food package as I have translated these from a Dutch label.

Energy calculation

The carbohydrate amount is not stated; it's the missing piece of the puzzle. Notice the percentages don't add up to 100%? We can calculate it as follows: 100 - (26 + 12 + 8 + 1.5 + 6.5) = 46%. So now we know how much fat, protein and carbohydrates are in this particular dog food.

  • 26 g protein per 100 g dog food
  • 12 g fat per 100 g dog food
  • 46 g carbohydrates per 100 g dog food

Energy delivery of fat, carbohydrates and protein

Dog by Mike Baird

You probably know that fat delivers the most energy per gram as compared to carbohydrates and protein. Per gram of fat 36 kJ is released. Carbohydrates and protein both release 15 kJ per gram.

So 100 gram of this particular dog food equals:

  • From protein: 26 x 15 kJ = 390 kJ
  • From fat: 12 x 36 kJ = 432 kJ
  • From carbohydrates: 45 x 15 kJ = 690 kJ

Which equals to a total of 390 + 432 + 690 = 1512 kJoule per 100 gram dog food.

Part three

Next we'll finally get to the daily amount of dog food to feed.

“If a dog jumps in your lap, it is because he is fond of you; but if a cat does the same thing, it is because your lap is warmer.”
- unknown -

All the best and paws up,
Barbara and Kensho

Continue reading about dog food

NEXT: Calculate how much gram of dog food your dog needs per day





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Photo credits:
First Dog - EuroMagic
Second dog - Mike Baird

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