Titlebook: Gastrointestinal Microbiology; Volume 1 Gastrointes Roderick I. Mackie,Bryan A. White Book 1997 Springer Science+Business Media Dordrecht 1

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Fermentation in Reptiles and Amphibiansd high efficiencies of biomass conversion, relative to birds and mammals (Pough 1983). The low energy requirements of amphibians and reptiles have important ramifications for digestive processing and, in herbivorous species, for the level of energy that must be generated by fermentations in the gastrointestinal tract.

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Biotransformation of Bile Acids, Cholesterol, and Steroid Hormones groups bonded to C-10 and C-13. The hydrogen atom in steroids saturated at at C-5 can be ß-oriented or α-oriented (allo). Alkyl side chains with various functional groups can be present at C-17, usually in the 17 ß orientation.

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Gastrointestinal Detoxification and Digestive Disorders in Ruminant Animalss not merely a consequence of the modern era of industrialization. In fact, toxin production may be considered a successful evolutionary strategy or adaptation to predators or a form of chemical warfare practiced by species as varied as insects, frogs, and plants (Rosenthal and Janzen 1979).

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Evolution in Preoperative Imagingy of classifying potential microbial effects on avian nutritional ecology and, following this pattern, summarize the scanty information available. We conclude by sketching a study design that forces us to identify the central questions and to propose a means of answering them.

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