All ruminants are dependent on the microorganisms that live in their
forestomach - the rumen - to break down ingested feed constituents into
a form that the host animal can utilize. Protozoa are part of this
complex ruminal population and are essential for the nutritional
well-being and productivity of the host ruminant. Over 30 different
genera (nearly 300 species) of protozoa from the rumen ecosystem have
been described since their initial discovery nearly 150 years ago. This
book brings together, for the first time, the available information on
these protozoa. It comprehensively describes the characteristic
anatomical features of value for their identification and includes
detailed sections on techniques and methodologies for the isolation and
cultivation of these fastidious, oxygen-sensitive microorganisms. Their
occurrence, biochemistry, physiology, and role in the ruminal ecosystem
are fully reviewed. Particular emphasis is given to potential
improvement of the nutrition and productivity of the host ruminant
through manipulation of the protozoal population and its activities.