Bacteria: Bacteria make up about half of the living organisms inside of the rumen. ...
Fiber–Digesting (or Cellulolytic) Bacteria: The fiber-digesters are some of the “fussiest” bacteria in the rumen. ...
Streptococcus bovis, “The Rumen Weed” ...
Lactate-Using Bacteria: ...
Protozoa: ...
Rumen Fungi: ...
References: