Inside the Rumen

Incubation inside the bovine rumen.

I . Details are given for the construction and use of an apparatus for the incubation of rumen liquor in semi-permeable sacs inside the bovine rumen. It was found practicable, using one animal, to incubate simultaneously samples of strained diluted rumen liquor in three identical vessels, each of 100--120 ml capacity, for periods of up to 23 h. 2. The optimal conditions for experiments of this ...

The rumen plasmidome

Plasmids are episomally replicating genetic elements which carry backbone genes that are important for their replication and maintenance within their host, and accessory genes that might confer an advantage to their host in its ecological niche. As such, they are often perceived as a powerful evolutionary force, which horizontally introduces new traits into bacterial cells and genomes. In our r...

Microbiology of the Rumen

Desulfovibrio of the sheep rumen.

A sulfate-reducing bacterium has been isolated in pure culture from sheep rumen contents. Its properties agree in all respects tested with those ascribed to Desulfovibrio desulfuricans. The populations observed (about 10(8)/ml) are sufficient to account for published rates of ruminal sulfide production.

Rumen Physiology for the Rancher

The ruminant animal has two unique features – it chews its cud and has four distinct compartments in the stomach. More importantly the ruminant can convert forages that are comprised by large quantities of cellulose, that is poorly digestible by non-ruminants, into high quality protein (muscle) that provides excellent eating experiences and nutrients for humans. Rumen Physiology is the study of...