Ghent University Academic Bibliography

Advanced

Mineral absorption in the black rhinoceros (Diceros bicornis) as compared with the domestic horse

Marcus Clauss UGent, JC Castell, E Kienzle, P Schramel, ES Dierenfeld, EJ Flach, O Behlert, W Jürgen Streich, Jürgen Hummel and Jean-Michel Hatt (2007) JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION. 91(5-6). p.193-204
abstract
To test whether mineral recommendations for horses are likely to guarantee adequate mineral provision for black rhinoceroses (Diceros bicornis), we investigated the apparent absorption (aA) of macro- and microminerals in eight black rhinoceroses from three zoological institutions in a total of 32 feeding trials with total faecal collection, with additional data from three unpublished studies (18 feeding trials). Feeds and faeces were analysed for Ca, P, Mg, Na, K, Fe, Mn, Cu, Zn and Co. The resulting aA coefficients, and the linear relationships of apparently absorbable dietary mineral content to total dietary mineral content [per 100 g dry matter (DM)], were compared with data for domestic horses. Rhinoceroses had significantly higher aA coefficients for Ca and Mg (because of a higher calculated 'true' absorption), and lower ones for Na and K (because of calculated higher endogenous faecal losses). High absorption efficiency for divalent cations is hypothesized to be an adaptation to a natural diet of particularly high Ca:P ratio (approximately 14:1); an effective removal of Ca from the ingesta guarantees sufficient P availability at the fermentation site in the hindgut. Higher faecal losses of Na and K are hypothesized to be linked to a higher faecal bulk per DM intake in black rhinoceroses as compared with horses because of a generally lower digestive efficiency. There were no relevant differences in the absorption patterns of microminerals. In particular, there were no discernable differences in Fe absorption within the rhinoceroses for diets with and without tannin supplementation. Several of the zoo diets assessed in this study were deficient in Cu, Mn or Zn, and most contained excessive levels of Fe when compared with horse requirements. The findings of this study indicate that differences in mineral absorption between occur even between species of similar digestive anatomy; that in particular, Ca absorption might vary between hindgut fermenters with Ca:P ratio in their natural diet; that Na might be a particularly limiting factor in the ecology of free-ranging rhinoceroses; that moderate doses of tannins do not seem to markedly influence mineral absorption; and that diets for captive animals should contain adequate, but not excessive mineral levels.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
potassium, sodium, magnesium, calcium, phosphorus, iron, copper, absorption, FED VARYING LEVELS, DRY-MATTER, FEED DIGESTIBILITIES, NUTRIENT COMPOSITION, PHOSPHORUS, CALCIUM, METABOLISM, PONIES, MAGNESIUM, DIGESTION
journal title
JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION
J. Anim. Physiol. Anim. Nutr.
volume
91
issue
5-6
pages
193 - 204
Web of Science type
Article
Web of Science id
000246618500005
JCR category
VETERINARY SCIENCES
JCR impact factor
0.911 (2007)
JCR rank
44/122 (2007)
JCR quartile
2 (2007)
ISSN
0931-2439
DOI
10.1111/j.1439-0396.2007.00692.x
language
English
UGent publication?
no
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
667749
handle
http://hdl.handle.net/1854/LU-667749
date created
2009-05-27 09:43:32
date last changed
2016-12-19 15:40:53
@article{667749,
  abstract     = {To test whether mineral recommendations for horses are likely to guarantee adequate mineral provision for black rhinoceroses (Diceros bicornis), we investigated the apparent absorption (aA) of macro- and microminerals in eight black rhinoceroses from three zoological institutions in a total of 32 feeding trials with total faecal collection, with additional data from three unpublished studies (18 feeding trials). Feeds and faeces were analysed for Ca, P, Mg, Na, K, Fe, Mn, Cu, Zn and Co. The resulting aA coefficients, and the linear relationships of apparently absorbable dietary mineral content to total dietary mineral content [per 100 g dry matter (DM)], were compared with data for domestic horses. Rhinoceroses had significantly higher aA coefficients for Ca and Mg (because of a higher calculated 'true' absorption), and lower ones for Na and K (because of calculated higher endogenous faecal losses). High absorption efficiency for divalent cations is hypothesized to be an adaptation to a natural diet of particularly high Ca:P ratio (approximately 14:1); an effective removal of Ca from the ingesta guarantees sufficient P availability at the fermentation site in the hindgut. Higher faecal losses of Na and K are hypothesized to be linked to a higher faecal bulk per DM intake in black rhinoceroses as compared with horses because of a generally lower digestive efficiency. There were no relevant differences in the absorption patterns of microminerals. In particular, there were no discernable differences in Fe absorption within the rhinoceroses for diets with and without tannin supplementation. Several of the zoo diets assessed in this study were deficient in Cu, Mn or Zn, and most contained excessive levels of Fe when compared with horse requirements. The findings of this study indicate that differences in mineral absorption between occur even between species of similar digestive anatomy; that in particular, Ca absorption might vary between hindgut fermenters with Ca:P ratio in their natural diet; that Na might be a particularly limiting factor in the ecology of free-ranging rhinoceroses; that moderate doses of tannins do not seem to markedly influence mineral absorption; and that diets for captive animals should contain adequate, but not excessive mineral levels.},
  author       = {Clauss, Marcus and Castell, JC and Kienzle, E and Schramel, P and Dierenfeld, ES and Flach, EJ and Behlert, O and Streich, W J{\"u}rgen and Hummel, J{\"u}rgen and Hatt, Jean-Michel},
  issn         = {0931-2439},
  journal      = {JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION},
  keyword      = {potassium,sodium,magnesium,calcium,phosphorus,iron,copper,absorption,FED VARYING LEVELS,DRY-MATTER,FEED DIGESTIBILITIES,NUTRIENT COMPOSITION,PHOSPHORUS,CALCIUM,METABOLISM,PONIES,MAGNESIUM,DIGESTION},
  language     = {eng},
  number       = {5-6},
  pages        = {193--204},
  title        = {Mineral absorption in the black rhinoceros (Diceros bicornis) as compared with the domestic horse},
  url          = {http://dx.doi.org/10.1111/j.1439-0396.2007.00692.x},
  volume       = {91},
  year         = {2007},
}

Chicago
Clauss, Marcus, JC Castell, E Kienzle, P Schramel, ES Dierenfeld, EJ Flach, O Behlert, W Jürgen Streich, Jürgen Hummel, and Jean-Michel Hatt. 2007. “Mineral Absorption in the Black Rhinoceros (Diceros Bicornis) as Compared with the Domestic Horse.” Journal of Animal Physiology and Animal Nutrition 91 (5-6): 193–204.
APA
Clauss, Marcus, Castell, J., Kienzle, E., Schramel, P., Dierenfeld, E., Flach, E., Behlert, O., et al. (2007). Mineral absorption in the black rhinoceros (Diceros bicornis) as compared with the domestic horse. JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION, 91(5-6), 193–204.
Vancouver
1.
Clauss M, Castell J, Kienzle E, Schramel P, Dierenfeld E, Flach E, et al. Mineral absorption in the black rhinoceros (Diceros bicornis) as compared with the domestic horse. JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION. 2007;91(5-6):193–204.
MLA
Clauss, Marcus, JC Castell, E Kienzle, et al. “Mineral Absorption in the Black Rhinoceros (Diceros Bicornis) as Compared with the Domestic Horse.” JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION 91.5-6 (2007): 193–204. Print.