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Czasopismo

2001 | 46 | 1 |

Tytuł artykułu

Particle retention in the forestomach of a browsing ruminant, the roe deer Capreolus capreolus

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
A combination of a flotation/sedimentation experiment and sieve analysis for the reticulorumen (RR) contents of roe deer Capreolus capreolus Linnaeus, 1758, a browsing ruminant, showed that there was no correlation between particle size and particle density. Large particles were present in both the sedimented and the buoyant fraction, which is in accord with the reported absence of stratification of RR contents in browsing ruminants. Comparative sieve analysis of roe deer RR and caecal/rectal material demonstrated that there must be some selective particle retention in the browsing ruminant as well, as a certain fraction of large particles in RR contents does not occur in the caecal/rectal material. These results lead to the explanatory dilemma that, while selective particle retention is observed, it cannot be due to the mechanisms known to work in grazing ruminants.

Wydawca

-

Czasopismo

Rocznik

Tom

46

Numer

1

Opis fizyczny

p.103-107

Twórcy

autor
  • Institute of Zoo Biology and Wildlife Research Berlin, Alfred-Kowalke-Str.17, 10315 Berlin, Germany
autor
autor
autor
autor

Bibliografia

  • Clauss M., Lechner-Doll M., Deutsch A., Flach E. J. and Tack C. 1998. Passage rate of fluid and particle phase in captive giraffe (Giraffa camelopardalis). [In: Contributions to the 2nd International Symposium on Physiology and Ethology of Wild and Zoo Animals. H. Hofer, C. Pitra and R. R. Hofmann, eds]. Advances in Ethology 33, Blackwell Scientific Publications, Berlin: 98.
  • Hofmann R. R. 1972. The ruminant stomach. East African Monographs in Biology Vol. II: 1-354.
  • Hubbert M. E. 1987. The effect of diet on energy partitioning in moose (Alces alces). Ph D thesis, University of Alaska, Fairbanks: 1-175.
  • Jiang Z. and Hudson R. J. 1996. Digestive responses of wapiti (Cervus elaphus) to seasonal forages. Acta Theriologica 41: 415-423.
  • Kaske M., Hatiboglu S. and von Engelhardt W. 1992. The influence of density and size of particles on rumination and passage from the reticulo-rumen of sheep. British Journal of Nutrition 67: 235-244.
  • Lechner-Doll M., Kaske M. and von Engelhardt W. 1991. Factors affecting the mean retention time of particles in the forestomach of ruminants and camelids. [In: Physiological aspects of digestion and metabolism in ruminants. Proceedings of the 7th International Symposium on Ruminant Physiology. T. Tsuda, Y. Saaski and R. Kawashima, eds]. Academic Press, San Diego: 455-482.
  • Nygren K. and Hofmann R. R. 1990. Seasonal variation of food particle size in moose (Alces alces). Alces 26: 44-50.
  • Renecker L. A. and Hudson R. J. 1990. Digestive kinetics of moose (Alces alces), wapiti (Cervus elaphus), and cattle. Animal Production 50: 51-61.
  • Sutherland T. 1988. Particle separation in the forestomach of sheep. [In: Aspects of digestive physiology in ruminants. A. Dobson and M. J. Dobson, eds]. Cornell University Press, Ithaca: 43-73.
  • Ulyatt M. J., Dellow D. W., John A., Reid C. S. and Waghorn G. C. 1986. Contribution of chewing during eating and rumination to the clearance of digesta from the ruminoreticulum. [In: Control of digestion and metabolism in ruminants. L. P. Milligan, W. L. Grovum and A. Dobson, eds]. Reston Book, Prentice Hall, Englewood Cliffs: 498-515.
  • Van Wieren S. E. 1996. Nutrient extraction from mixed grass-browse diets by goats and sheep. [In: Digestive strategies in ruminants and nonruminants. S. E. Van Wieren]. Ph D thesis, University of Wageningen, Wageningen: 67-80.

Typ dokumentu

Bibliografia

Identyfikatory

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