Raw Food versus Cooked Kibble for Dogs
Jada Scott
Island Pacific School
Floor Location : J 209 H

The objectives of the experiment were to determine:
- How long food takes to go through a dog’s intestine depending on whether it is raw food or cooked kibble bought from a store.
- Whether raw food produces less waste than cooked kibble.
- Whether raw food produces less bad smelling waste than cooked kibble.
- Whether mixing both raw food and cooked kibble together will cause diarrhea.

For my experiment, dogs were fed the different types of food and were monitored, so when the food passes through the waste was picked up and the weight and time of waste was recorded.

My hypotheses were:
Raw food will travel faster through the intestine than cooked kibble.
Raw food will produce less waste than cooked kibble.
Cooked kibble will produce less bad smelling waste than raw food.
Mixing the foods will make no difference in the consistency of the waste.

Results:
The information found tells us that it takes around 16.5 hours for mixed food to pass through, 15.5 hours for kibble to pass through, and nearly 24 hours for raw food to pass through a dog’s intestine. This means it takes longer for the dog to absorb nutrients from raw food as opposed to cooked food.
Yes, raw food produces less waste than cooked kibble does. Cooked kibble produces the most waste, with mixed food producing 27% less waste and raw food producing 87% less than kibble. On average the dog produced over 2 poops per day with kibble and mixed food and less than one poop per day with raw food.
Yes, raw food produces less bad smelling waste than cooked kibble. The waste produced from kibble and mixed food had a very strong, unpleasant smell. By comparison the waste that was produced by raw food barely smelled at all.
None of the foods cause diarrhea, but the mixed food did cause mushy and smelly waste. The kibble occasionally produced mushy waste. In comparison, the raw food produced a small very solid, dark kind of waste.

Conclusion:
I expected raw food to pass through quicker because it is already mashed up and slimy, so it would be digested faster. However, I found out that raw food takes the most amount of time to digest.
I was correct in assuming that raw food would produce less waste than cooked kibble because I thought it would be absorbed better than the other.
I expected that the waste that the cooked kibble produced would smell better than that produced by raw food because I thought dogs would be like humans in smelling worse after eating meat, but it turned out to be the opposite.
This was relevant because dog owners want their pets to be as healthy as they can be and this comes with having a proper diet.