Protein is important
Animals need protein. It’s how they are able to generate muscle. However, they only need a certain amount. Any excess is a waste of money and a poten al environmental hazard. So it’s important to know how much protein is in their diet.
Nitrogen = Protein
You’d be surprised to know that Nitrogen is measured to calculate protein content. When it comes to food, Nitrogen is pre y unique to protein. Proteins are made up of smaller molecules called amino acids, and all amino acids contain Nitrogen.