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Influence of environmental humidity and dietary protein on pyramidal growth of carapaces in African spurred tortoises ( Geochelone sulcata ) by C. S. Wiesner; C. Iben is a Agricultural and Biological Sciences article available to read on EtoBox.
What is Influence of environmental humidity and dietary protein on pyramidal growth of carapaces in African spurred tortoises ( Geochelone sulcata ) about?
## Summary The carapaces of captive‐raised tortoises (terrestrial chelonians of the zoological family __Testudinidae__, often develop pyramidal‐shaped osseous growth centrally within the horny plates. With very few exceptions (e.g. __Geochelone elegans__, __Psammobates__ sp.), this conical growth pattern is considered to be pathologic. This very common defect is believed to be an important indicator of the quality of captive tortoise management. This study was designed to examine the effect of dietary protein level and environmental humidity on the degree of pyramidal growth in the carapaces. Fifty recently hatched African spurred tortoises (__G. sulcata__) were raised for 5 months under artificial conditions of varying environmental humidity and dietary protein content (14% vs. 19% vs. 30% crude protein in dry matter). Humps of the carapaces that developed and blood values of calcium, phosphorus and haematocrit were measured and compared among groups. Dry environmental conditions (24.3–57.8% and 30.6–74.8% relative humidity) produced taller humps than humid conditions (45‐99% relative humidity). Hump formation differed significantly (p ≤ 0.001) between these three groups kept unde
Who reads Influence of environmental humidity and dietary protein on pyramidal growth of carapaces in African spurred tortoises ( Geochelone sulcata )?
It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- C. S. Wiesner; C. Iben
- Publisher
- Wiley
- Published
- 2003
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)