J.D. Erfle

TL;DR: It is concluded that solubility or insolubility of a protein is not by itself an indication of the protein's resistance or susceptibility to hydrolysis by rumen bacterial protease, and structural characteristics of the properties which renders feed protein resistant to degradation is the presence of crosslinking disulfide bonds.

TL;DR: The effect of pH on the rate of fermentation of a pelleted concentrate and corn silage diet was studied in this article, where the pH of the artificial rumen contents was maintained by infusion of artificial saliva and automated addition of sodium carbonate.

TL;DR: Rumen microbial extracts possessed glutamate synthase activity which in conjunction with glutamine and asparagine synthetases may provide an efficient means of glutamate synthesis at low rumen ammonia concentrations.

TL;DR: Mixed rumen micro-organisms, maintained in continuous culture readily incorporated labelled HCO3- and acetate into amino acids, and most 2-oxo precursors of amino acids in these organisms appear to be formed via reductive carboxylation of the precursor acid.

TL;DR: The results indicated that during ketosis, significant quantities of acetoacetate may be synthesized by an extramitochondrial pathway and the suggestion was made that the degree of ketosis in the intact animal may relate closely to the levels of free coenzyme A in the liver and that the concentration of acetyl coen enzyme A may be of lesser importance.