*Microbes in the foregut can convert non-proteinaceous sources of nitrogen, like ammonia and urea to all of the amino acids. Microbial protein is available to the ruminant when the microbes die and pass down into the abomasum and small intestine. Therefore ruminants can survive on a poor quality source of of nitrogen. | *Microbes in the foregut can convert non-proteinaceous sources of nitrogen, like ammonia and urea to all of the amino acids. Microbial protein is available to the ruminant when the microbes die and pass down into the abomasum and small intestine. Therefore ruminants can survive on a poor quality source of of nitrogen. |