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Studies on feed digestibilities in captive Asian elephants (Elephas maximus)

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Abstract
In order to test the suitability of the horse as a nutritional model for elephants, digestibility studies were performed with six captive Asian elephants on six different dietary regimes, using the double marker method with acid detergent lignin as an internal and chromium oxide as an external digestibility marker. Elephants resembled horses in the way dietary supplements and dietary crude fibre content influenced digestibility, in calcium absorption parameters and in faecal volatile fatty acid composition. However, the absolute digestibility coefficients achieved for all nutrients are distinctively lower in elephants. This is because of much faster ingesta passage rates reported for elephants. No answer is given to why elephants do not make use of their high digestive potential theoretically provided by their immense body weight. Differences in volatile fatty acid concentrations between these captive elephants and those reported from elephants from the wild are in accord with a reported high dependence of free-ranging elephants on browse forage.
Keywords
PATTERNS, HERBIVORES, CALCIUM

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MLA
Clauss, Marcus et al. “Studies on Feed Digestibilities in Captive Asian Elephants (Elephas Maximus).” JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION 87.3-4 (2003): 160–173. Print.
APA
Clauss, M., Loehlein, W., Kienzle, E., & Wiesner, H. (2003). Studies on feed digestibilities in captive Asian elephants (Elephas maximus). JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION, 87(3-4), 160–173. Presented at the 5th Annual conference of the European Society of Veterinary and Comparative Nutritions (ESVCN 2001).
Chicago author-date
Clauss, Marcus, W Loehlein, Ellen Kienzle, and H Wiesner. 2003. “Studies on Feed Digestibilities in Captive Asian Elephants (Elephas Maximus).” Journal of Animal Physiology and Animal Nutrition 87 (3-4): 160–173.
Chicago author-date (all authors)
Clauss, Marcus, W Loehlein, Ellen Kienzle, and H Wiesner. 2003. “Studies on Feed Digestibilities in Captive Asian Elephants (Elephas Maximus).” Journal of Animal Physiology and Animal Nutrition 87 (3-4): 160–173.
Vancouver
1.
Clauss M, Loehlein W, Kienzle E, Wiesner H. Studies on feed digestibilities in captive Asian elephants (Elephas maximus). JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION. 2003;87(3-4):160–73.
IEEE
[1]
M. Clauss, W. Loehlein, E. Kienzle, and H. Wiesner, “Studies on feed digestibilities in captive Asian elephants (Elephas maximus),” JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION, vol. 87, no. 3–4, pp. 160–173, 2003.
@article{668250,
  abstract     = {In order to test the suitability of the horse as a nutritional model for elephants, digestibility studies were performed with six captive Asian elephants on six different dietary regimes, using the double marker method with acid detergent lignin as an internal and chromium oxide as an external digestibility marker. Elephants resembled horses in the way dietary supplements and dietary crude fibre content influenced digestibility, in calcium absorption parameters and in faecal volatile fatty acid composition. However, the absolute digestibility coefficients achieved for all nutrients are distinctively lower in elephants. This is because of much faster ingesta passage rates reported for elephants. No answer is given to why elephants do not make use of their high digestive potential theoretically provided by their immense body weight. Differences in volatile fatty acid concentrations between these captive elephants and those reported from elephants from the wild are in accord with a reported high dependence of free-ranging elephants on browse forage.},
  author       = {Clauss, Marcus and Loehlein, W and Kienzle, Ellen and Wiesner, H},
  issn         = {0931-2439},
  journal      = {JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION},
  keywords     = {PATTERNS,HERBIVORES,CALCIUM},
  language     = {eng},
  location     = {Sursee, Switzerland},
  number       = {3-4},
  pages        = {160--173},
  title        = {Studies on feed digestibilities in captive Asian elephants (Elephas maximus)},
  url          = {http://dx.doi.org/10.1046/j.1439-0396.2003.00429.x},
  volume       = {87},
  year         = {2003},
}

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