Literaturdatenbank
Literaturdatenbank |
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Bedir, M. A., & Mobarak, Y. M. (2003). Palatability of one tortoise species to various plant leaves from their native habitat. Journal of the Egyptian German Society of Zoology, 41B, 19–31.
Added by: Admin (14 Aug 2008 20:36:21 UTC) |
| Resource type: Journal Article BibTeX citation key: Bedir2003 View all bibliographic details  |
Categories: General Keywords: Ernährung = nutrition, Schildkröten = turtles + tortoises, Testudinidae, Testudo, Testudo graeca Creators: Bedir, Mobarak Collection: Journal of the Egyptian German Society of Zoology |
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| Abstract |
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Testudinidae The present investigation was planed to determine the most palatable plant leaves to the tortoises of the species Testudo graeca ibera in their natural habitat. In the laboratory, tortoises were kept individually in large plastic cages and were reared on constant weights of plant leaves of Rhazya stricta, Sonchus oleraceus, and Rumex vesicarius for four weeks. Food consumption was estimated by area and residue estimate methods in which the amount of food consumed by each tortoise was taken as an indicator of the palatability of each plant type. The Study showed that.tortoises consumed large amounts of S. oleraceus; indicating its high palatability. Analysis of the carbon and nitrogen contents in the three test diets indicated that S. oleraceus leaves contained the highest nitrogen, the lowest carbon contents and the least C/N ratio when compared to those of R. vesicarius and R. stricta leaves. The Phytochemical screening of the test leaves showed the absence of alkaloids, flavones, saponines, and glycosides from leaves of S. oleraceus (the most palatable test diet), while it contained very small amounts of tannins and sterols. All these chemicals were detected in the other test leaves, but in different proportions.
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