The protein content of the food only gives a rudimentary idea of the amino acid availability in the food. Firstly, the digestibility of the proteins may vary. Vegetable proteins are in general less digestible than animal proteins. Cheap animal by-products containing a lot of connective tissue and are less digestible than high quality premium animal ingredients.
Besides digestibility, the biological value of the protein is a very important parameter which reflects the amino acid composition of the food. The biological value is calculated by comparing the level of each essential amino acid in the food with its concentration in the body of the animal.
Proteins with a high biological value bring all essential amino acids in the right proportions. Egg and poultry have high biological values. This is why Husse super premium products contain a lot of poultry and egg.
