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Bidmon, H.-J. (2009). Ernährungsgrundlagen und darmpassagezeiten bei herbivoren landschildkröten – oder wie selektierende nahrungsgeneralisten auch unter extremen bedingungen überleben: eine übersicht. Schildkröten im Fokus, 6(1), 3–26. 
Added by: Sarina Wunderlich (03 Feb 2009 16:39:24 UTC)   Last edited by: Sarina Wunderlich (20 Jul 2009 12:02:12 UTC)
Resource type: Journal Article
BibTeX citation key: Bidmon2009a
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Categories: General
Keywords: Aldabrachelys, Aldabrachelys dussumieri, Astrochelys, Astrochelys radiata, Chelonoidis, Chelonoidis carbonaria, Chelonoidis denticulata, Chelonoidis nigra, Ernährung = nutrition, Geochelone, Geochelone elegans, Geochelone platynota, Gopherus, Gopherus agassizii, Gopherus polyphemus, Manouria, Manouria emys, Schildkröten = turtles + tortoises, Stigmochelys, Stigmochelys pardalis, Testudinidae, Testudo, Testudo graeca, Testudo hermanni, Testudo marginata
Creators: Bidmon
Collection: Schildkröten im Fokus
Views: 11/1352
Views index: 23%
Popularity index: 5.75%
URLs     http://www.schildk ... /2009_1bidmon.html
Abstract     
Abstract
This review addresses the nutritional basis for the management of herbivorous tortoises by summarizing the data published about their natural diets and trophic ecological niches in a manner that may be useful not only for specialists, but hopefully also for private keepers and hobbyists. I refer especially to annual nutritional energy budgets in relation to water availability and the associated physiological and morphological adaptations of their digestive tract. In addition, experimental data about the assimilation of nutrients and water from various diets at given temperatures are included in order to explain the diagnostic value of gut passage (transition) times for digestion and energy assimilation. Such knowledge and its objective evaluation is a prerequisite for establishing appropriate protocols for feeding tortoises in captivity. Although the available data are scarce, and are so far restricted to a comparatively small number of species, these data are important for all of those private keepers and organisational stockman or veterinarians who are still interested in improving the nutritional requirements for maintaining the health of herbivorous tortoises in captivity and in breeding programs. Last but not least, since nutrition in many cases is influenced by emotional personal feelings, including subjective opinions which are often addressed by companies and sellers advertising commercial diets or health care products, I try to compare these subjective statements with those provided by the scientific literature.

Key words
Testudines, nutrition, intestinal passage time, food choice, herbivorous tortoises
Added by: Sarina Wunderlich  Last edited by: Sarina Wunderlich
Notes     
Diskussion im testudo-forum
Added by: Sarina Wunderlich  Last edited by: Sarina Wunderlich
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