Magnesium requirement of some of the principal rumen cellulolytic bacteria

extensions of some polynomial inequalities to the polar derivative

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The pentosanases of some rumen bacteria.

Studies on the Nitrogen Requirements of Some Ruminal Cellulolytic Bacteria.

Knowledge of the nitrogen compounds utilized for growth of ruminal cellulolytic bacteria is of considerable importance to an understanding of the nitrogen economy of ruminants and of factors affecting ruminal cellulose digestion. Work with mixed cultures of bacteria from the rumen has shown that cellulose digestion occurs with ammonia or urea, which rapidly yields ammonia, as the sole source of...

The Cellulolytic Activity of Pure Strains of Bacteria from the Rumen of Cattle.

The in vitro breakdown of degraded and undegraded varieties of cellulose was examined by using pure strains of bacteria isolated from the rumen of cattle. One strain of Bacteroides succinogenes, two strains of Ruminococcus albus and two strains of Ruminococcus jlavefaciens were allowed to ferment ground cellulose powder (prepared from filter paper), cellulose powder (Whatman) and undegraded cot...

Quantitative analysis of cellulose degradation and growth of cellulolytic bacteria in the rumen.

Ruminant animals digest cellulose via a symbiotic relationship with ruminal microorganisms. Because feedstuffs only remain in the rumen for a short time, the rate of cellulose digestion must be very rapid. This speed is facilitated by rumination, a process that returns food to the mouth to be rechewed. By decreasing particle size, the cellulose surface area can be increased by up to 10(6)-fold....