Mackie, R I Changes in Lactate-Producing and Lactate-Utilizing Bacteria in Relation to pH in the Rumen of Sheep During Stepwise Adaptation to a High-Concentrate Diet. [electronic resource] - Applied and environmental microbiology Sep 1979 - 422-30 p. digital Publication Type: Journal Article ISSN: 0099-2240 Standard No.: 10.1128/aem.38.3.422-430.1979 doi