Changes in bacterial composition and enzymatic activity in ileostomy and ileal reservoir during intermittent occlusion: a study using dogs

Article Abstract:

The composition of bacterial flora, production of dietary- and mucus-degrading enzyme, blood group antigenicity of intestinal glycoproteins and proteolysis were determined from dogs with conventional ileostomies and dogs with valveless ileal reservoir. Intermittent occlusion were performed during a period of six weeks and observations in the ileostomy and pouch flora were compared. In ileal pouch, bacterial populations and glycosidase activity increased by three- and five-folds respectively. Blood group antigenicity was no longer detected while glycosidase activity were not affected by occlusion.

Ileostomy

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Identification of bacterial isolates obtained from intestinal contents associated with 12,000-year-old mastodon remains

Article Abstract:

Remnants of small and large intestines found with the skeletal remains of mastodons (Mammut americanum) in late-Pleistocene pond sediments in Ohio and Michigan were examined. Specifically, microbiological analyses of these organic masses were conducted to determine whether facultatively anaerobic gram-negative rods or obligately anaerobic organisms were associated with the assemblages of plant material, believed to be incompletely digested food remains from the mastodons and radiocarbon dated to about 11,500 years before the present, that were found in the intestines. The results are discussed.

Fossils, Mastodon, Mastodons

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Application of methods for identifying broiler chicken gut bacterial species linked with increased energy metabolism

Article Abstract:

A high-throughput microbial profiling tool based on terminal restriction fragment length polymorphism is developed in order to monitor the poultry gut microbiota in response to dietary manipulations. The studies have directly linked the differences in the composition of the gut microbial community with improved performance, implying that the presence of specific beneficial and absence of specific detrimental bacterial species have contributed to the improved performance in the birds.

Science & research, Usage, Food and nutrition, Chicken breeds, Restriction fragment length polymorphism analysis

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