Concentration of Ammonia and Total VFA in rumen is highest for

Concentration of Ammonia and Total VFA in rumen is highest for Goats.
Rumen microbes convert NPN to ammonia via urease. The ammonia is then combined with ketoacids by the microbes to produce amino acids.
The most important end products of carbohydrate breakdown in the rumen are Volatile Fatty Acids (VFAs). These acids are important because they are the major source (70%) of energy for the ruminant the proportions in which they are produced determine fat and protein content of milk.