Bypass protein is protein not degraded in the rumen but digested in the true stomach and intestines. Such proteins provide more and a better balance of amino acids to cattle, thus improving production. Liquid feed fed to grazing cows should contain by-pass protein when the addition of a natural protein is recommended. It is difficult to compare the energy concentration of different liquid supplements because common energy values such as TDN are not given. The following feed tag values will assist in making such comparisons.
Water contributes no energy and a liquid feed with less moisture usually has a higher energy value.
Total invert sugar. Sugars are the major source of energy in most liquid feeds. The higher the better. Fat contains 2.25 times the energy of sugar or starch. The addition of fat increases the energy value of a liquid feed.