European Journal of Wildlife Research

, Volume 57, Issue 1, pp 143–148 | Cite as

Fluid and particle passage in three duiker species

  • Marcus ClaussEmail author
  • Nicola Lunt
  • Sylvia Ortmann
  • Amy Plowman
  • Daryl Codron
  • Jürgen Hummel
Original Paper


Ruminants are characterised by two different types of reticulorumen (RR) physiology. ‘Cattle-type’ ruminants have, amongst other features such as RR contents stratification and a heterogenous intraruminal papillation, a distinct difference between the mean retention time (MRT) of small particles and fluids (the ratio is called the selectivity factor, SF). ‘Moose-type’ ruminants have RR contents that are less stratified, a more homogenous intraruminal papillation and low SFs, indicating less difference in the MRT of small particles and fluids. To date, physiological data indicating a ‘moose-type’ physiology have only been measured in giraffids and Odocoilean cervids, raising the question whether it is limited to these taxonomic groups only. Here, we measured MRTs of fluids and particles in five duikers (Bovidae, Cephalophinae) from three species (Sylvicapra grimmia, Cephalophus monticola and Cephalophus sylvicultor) and found SFs in the RR of 1.27 ± 0.18—well within the range of these other browsers. These results are the first physiological indication that a ‘moose-type’ physiology may also occur in bovid species and thus might represent a true convergent adaptation.


Stratification Rumen physiology Particle retention Browser Grazer 



We thank the Director and staff at Marwell Zimbabwe Trust for assistance with sample collection and Heidrun Barleben from the IZW for her engaged support in the lab. Whitley Wildlife Conservation Trust (UK) and Marwell Wildlife (UK) funded duiker husbandry.


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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Marcus Clauss
    • 1
    Email author
  • Nicola Lunt
    • 2
  • Sylvia Ortmann
    • 3
  • Amy Plowman
    • 4
  • Daryl Codron
    • 1
  • Jürgen Hummel
    • 5
  1. 1.Clinic for Zoo Animals, Exotic Pets and Wildlife, Vetsuisse FacultyUniversity of ZurichZurichSwitzerland
  2. 2.Antelope ProjectMarwell Zimbabwe TrustBulawayoZimbabwe
  3. 3.Leibniz Institute for Zoo and Wildlife Research (IZW)BerlinGermany
  4. 4.Whitley Wildlife Conservation TrustDevonUK
  5. 5.Institute of Animal ScienceUniversity of BonnBonnGermany

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