Add new indicators to indicate proteins qualities and quatities on Pet Foods

[olboaz]

For openpetfoodfacts =>
Add 2 indicators for proteins qualities and quantities :

1/ RPC (rapport protido-calorique)

The amount of protein absorbed by a dog or cat depends on its energy requirement. If an animal has a low energy requirement, it will eat a limited amount of food and therefore a low amount of protein, unless the food given is very concentrated in protein.
Therefore, directly reading the protein percentage does not allow two products to be compared together. The energy density of a food must be taken into account to make reliable comparisons. By extension, it is not possible to classify kibbles using the percentage of protein as the sole criterion.
The protein-calorie ratio evaluates the protein concentration of a food in relation to the calories it provides. This is the only calculation method that allows us to know precisely the quantity of protein ingested during a meal. The concept of RPC is very important when choosing a diet based on your pet's needs.

calculate => RPC = (protein %) / (Energy density kcal/100g) * 1000
WebSite description => https://www.unegamelleautop.fr/2021/07/29/rpc-rapport-protido-calorique/

2/ RPP (rapport protido-phosphorique)
If we are only interested in the percentage of proteins when choosing a pack of kibble, we miss an essential aspect: the quality of the proteins constituting the product.

Reading a list of ingredients is not enough to get a clear idea of ​​the quality of a product. An analysis of nutritional information is necessary. Knowing that a manufacturer is not obliged to detail all the ingredients on a label. It is entirely possible to group certain elements under generic names such as poultry, chicken, animal by-products, etc.

You should know that food classes with proteins with high biological value (meat, fish, eggs, offal, etc.) have high protein to phosphorus ratios. While food classes with low biological value (cereals, carcasses, bones, etc.) have low protein to phosphorus ratios.

The protein-phosphoric ratio is therefore a very useful indicator when choosing a physiological diet for your pet.

If the kibble does not contain too much phosphorus compared to proteins, we can assume that the presence of bones and cartilage is limited compared to meat. As phosphorus is a mineral found in high doses in bones, a low RPP demonstrates the presence of a large quantity of carcass and/or bone in the composition, which should be avoided.

calculate => RPP = (protein %) / phosphorus %
WebSite description = >https://www.unegamelleautop.fr/2021/07/29/rpp-rapport-protido-phosphorique/

These 2 indicators give a better overview of the quality of pet food.
Thanks