1.1.1.45	L-gulonate 3-dehydrogenase	rumen epithelium	-	
4.2.1.1	carbonic anhydrase	rumen epithelium	-	
6.2.1.1	acetate-CoA ligase	rumen epithelium	-	
6.2.1.2	medium-chain acyl-CoA ligase	rumen epithelium	-