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Number of items: 92.

Clauss, Marcus; Fritz, J; Tschuor, A; Braun, Ueli; Hummel, J; Codron, D (2017). Dry matter and digesta particle size gradients along the goat digestive tract on grass and browse diets. Journal of Animal Physiology and Animal Nutrition, 101:61-69.

Vendl, C; Clauss, Marcus; Stewart, M; Leggett, K; Hummel, J; Kreuzer, M; Munn, A (2015). Decreasing methane yield with increasing food intake keeps daily methane emissions constant in two foregut fermenting marsupials, the western grey kangaroo and red kangaroo. Journal of Experimental Biology, 218(21):3425-3434.

Müller, J; Clauss, Marcus; Codron, D; Schulz, E; Hummel, J; Kircher, Patrick; Hatt, Jean-Michel (2015). Tooth length and incisal wear and growth in guinea pigs (Cavia porcellus) fed diets of different abrasiveness. Journal of Animal Physiology and Animal Nutrition, 99(3):591-604.

Clauss, Marcus; Schiele, K; Ortmann, S; Fritz, J; Codron, D; Hummel, J; Kienzle, E (2014). The effect of very low food intake on digestive physiology and forage digestibility in horses. Journal of Animal Physiology and Animal Nutrition, 98:107-118.

Taylor, L A; Rudd, J; Hummel, J; Clauss, Marcus; Schwitzer, C (2013). Weight loss in pygmy hippos (Choeropsis liberiensis). In: Steck, B. International Studbook for the Year 2012 - Pygmy Hippopotamus. Basel: Zoo Basel, 20-25.

Müller, D W H; Codron, D; Werner, J; Fritz, J; Hummel, J; Griebeler, E M; Clauss, Marcus (2012). Dichotomy of eutherian reproduction and metabolism. Oikos, 121(1):102-115.

Serrano Ferron, E; Verheyden, H; Hummel, J; Cargnelutti, B; Lourtet, B; Merlet, J; González-Candela, M; Angibault, J M; Hewison, A J M; Clauss, Marcus (2012). Digestive plasticity as a response to woodland fragmentation in roe deer. Ecological Research, 27(1):77-82.

Franz, R; Kreuzer, M; Hummel, J; Hatt, J M; Clauss, Marcus (2011). Intake, selection, digesta retention, digestion and gut fill of two coprophageous species, rabbits (Oryctolagus cuniculus) and guinea pigs (Cavia porcellus), on a hay-only diet. Journal of Animal Physiology and Animal Nutrition, 95(5):564-570.

Clauss, Marcus; Hummel, J (2011). Comparative fibre digestion. In: 15th Congress European Society of Veterinary and Comparative Nutrition, Zaragoza, Spain, 14 September 2011 - 16 September 2011, 9-15.

Franz, R; Soliva, C R; Kreuzer, M; Hummel, J; Clauss, Marcus (2011). Methane output of rabbits (Oryctolagus cuniculus) and guinea pigs (Cavia porcellus) fed a hay-only diet: Implications for the scaling of methane production with body mass in non-ruminant mammalian herbivores. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 158(1):177-181.

Hummel, J; Findeisen, E; Südekum, K H; Ruf, I; Kaiser, T M; Bucher, M; Clauss, Marcus; Codron, D (2011). Another one bites the dust: faecal silica levels in large herbivores correlate with high-crowned teeth. Proceedings of the Royal Society B: Biological Sciences, 278(1712):1742-1747.

Sander, P M; Christian, A; Clauss, Marcus; Fechner, R; Gee, C T; Griebeler, E M; Gunga, H C; Hummel, J; Mallison, H; Perry, S F; Preuschoft, H; Rauhut, O W M; Remes, K; Tütken, T; Wings, O; Witzel, U (2011). Biology of the sauropod dinosaurs: the evolution of gigantism. Biological Reviews, 86(1):117-155.

Clauss, Marcus; Lunt, N; Ortmann, S; Plowman, A; Codron, D; Hummel, J (2011). Fluid and particle passage in three duiker species. European Journal of Wildlife Research, 57(1):143-148.

Fritz, J; Hummel, J; Kienzle, E; Wings, O; Streich, W J; Clauss, Marcus (2011). Gizzard vs. teeth, it’s a tie: food-processing efficiency in herbivorous birds and mammals and implications for dinosaur feeding strategies. Paleobiology, 37(4):577-586.

Clauss, Marcus; Hatt, J M; Hummel, J (2011). Green grocery guide. Zooquaria, (5):22-23.

Franz, R; Hummel, J; Müller, D W H; Bauert, M; Hatt, J M; Clauss, Marcus (2011). Herbivorous reptiles and body mass: Effects on food intake, digesta retention, digestibility and gut capacity, and a comparison with mammals. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 158(1):94-101.

Steuer, P; Südekum, K H; Müller, D W H; Franz, R; Kaandorp, J; Clauss, Marcus; Hummel, J (2011). Is there an influence of body mass on digesta mean retention time in herbivores? A comparative study on ungulates. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 160(3):355-364.

Franz, R; Soliva, C R; Kreuzer, M; Hatt, J M; Furrer, S; Hummel, J; Clauss, Marcus (2011). Methane output of tortoises: Its contribution to energy loss related to herbivore body mass. PLoS ONE, 6(3):e17628.

Müller, D W H; Caton, J; Codron, D; Schwarm, A; Lentle, R; Streich, W J; Hummel, J; Clauss, Marcus (2011). Phylogenetic constraints on digesta separation: Variation in fluid throughput in the digestive tract in mammalian herbivores. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 160(2):207-220.

Hummel, J; Clauss, Marcus (2011). Sauropod feeding and digestive physiology. In: Klein, N; Remes, K; Gee, C T; Sander, P M. Biology of the sauropod dinosaurs. Understanding the life of giants. Bloomington and Indianapolis: Indiana University Press, 11-32.

Hebel, C; Ortmann, S; Hammer, S; Hammer, C; Fritz, J; Hummel, J; Clauss, Marcus (2011). Solute and particle retention in the digestive tract of the Phillip's dikdik (Madoqua saltiana phillipsi), a very small browsing ruminant: Biological and methodological implications. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 159(3):284-290.

Clauss, Marcus; Lechner, I; Barboza, P; Collins, W; Tervoort, T A; Südekum, K H; Codron, D; Hummel, J (2011). The effect of size and density on the mean retention time of particles in the reticulorumen of cattle ( Bos primigenius f. taurus), muskoxen ( Ovibos moschatus) and moose ( Alces alces). British Journal of Nutrition, 105:634-644.

Clauss, Marcus; Lang-Deuerling, S; Müller, D W H; Kienzle, E; Steuer, P; Hummel, J (2010). Retention of fluid and particles in captive tapirs (Tapirus sp.). Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 157(1):95-101.

Steuer, P; Clauss, Marcus; Südekum, K H; Hatt, J M; Silinksi, S; Klomburg, S; Zimmermann, W; Fickel, J; Streich, W J; Hummel, J (2010). Comparative investigations on digestion in grazing (Ceratotherium simum) and browsing (Diceros bicornis) rhinoceroses. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 156(4):380-388.

Meyer, K; Hummel, J; Clauss, Marcus (2010). The relationship between forage cell wall content and voluntary food intake in mammalian herbivores. Mammal Review, 40(3):221-245.

Sander, P M; Gee, C T; Hummel, J; Clauss, Marcus (2010). Mesozoic plants and dinosaur herbivory. In: Gee, C T. Plants in Mesozoic time: Morphological innovations, phylogeny, ecosystems. Bloomington: Indiana University Press, 331-359.

Clauss, Marcus; Hofmann, R R; Streich, W J; Fickel, J; Hummel, J (2010). Convergence in the macroscopic anatomy of the reticulum in wild ruminant species of different feeding types and a new resulting hypothesis on reticular function. Journal of Zoology, 281(1):26-38.

Kaiser, T M; Fickel, J; Streich, W J; Hummel, J; Clauss, Marcus (2010). Enamel ridge alignment in upper molars of ruminants in relation to their natural diet. Journal of Zoology, 281(1):12-25.

Clauss, Marcus; Hume, I D; Hummel, J (2010). Evolutionary adaptations of ruminants and their potential relevance for modern production systems. animal, 4(7):979-992.

Lechner, I; Barboza, P; Collins, W; Fritz, J; Günther, D; Hattendorf, B; Hummel, J; Südekum, K H; Clauss, Marcus (2010). Differential passage of fluids and different-sized particles in fistulated oxen (Bos primigenius f. taurus), muskoxen (Ovibos moschatus), reindeer (Rangifer tarandus) and moose (Alces alces): Rumen particle size discrimination is independent from contents stratification. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 155 A(2):211-222.

Franz, R; Soliva, C R; Kreuzer, M; Steuer, P; Hummel, J; Clauss, Marcus (2010). Methane production in relation to body mass of ruminants and equids. Evolutionary Ecology Research, 12:727-738.

Fritz, J; Hummel, J; Kienzle, E; Streich, W J; Clauss, Marcus (2010). To chew or not to chew: fecal particle size in herbivorous reptiles and mammals. Journal of Experimental Zoology. Part A: Ecological Genetics and Physiology, 313A(9):579-586.

Clauss, Marcus; Nunn, C; Fritz, J; Hummel, J (2009). Evidence for a tradeoff between retention time and chewing efficiency in large mammalian herbivores. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 154(3):376-382.

Schwarm, A; Schweigert, M; Ortmann, S; Hummel, J; Janssens, G P J; Streich, W J; Clauss, Marcus (2009). No easy solution for the fractionation of faecal nitrogen in captive wild herbivores: results of a pilot study. Journal of Animal Physiology and Animal Nutrition, 93(5):596-605.

Lechner, I; Barboza, P; Collins, W; Günther, D; Hattendorf, B; Hummel, J; Clauss, Marcus (2009). No ‘bypass’ in adult ruminants: Passage of fluid ingested vs. fluid inserted into the rumen in fistulated muskoxen (Ovibos moschatus), reindeer (Rangifer tarandus) and moose (Alces alces). Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 154(1):151-156.

Clauss, Marcus; Hofmann, R R; Fickel, J; Streich, W J; Hummel, J (2009). The intraruminal papillation gradient in wild ruminants of different feeding types: implications for rumen physiology. Journal of Morphology, 270(8):929-942.

Franz, R; Hummel, J; Kienzle, E; Kölle, P; Gunga, H C; Clauss, Marcus (2009). Allometry of visceral organs in living amniotes and its implications for sauropod dinosaurs. Proceedings of the Royal Society B: Biological Sciences, 276(1662):1731-1736.

Fritz, J; Hummel, J; Kienzle, E; Arnold, Christian; Nunn, C; Clauss, Marcus (2009). Comparative chewing efficiency in mammalian herbivores. Oikos, 118:1623-1632.

Colville, K; Bouts, T; Hartley, A; Clauss, Marcus; Routh, A (2009). Frothy bloat and serous fat atrophy associated with insufficient fibre intake in a giraffe (Giraffa camelopardalis). In: Clauss, M; Fidgett, A; Hatt, J M; Huisman, T; Hummel, J; Janssen, G; Nijboer, J; Plowman, A. Zoo Animal Nutrition, Vol. IV. Fürth: Filander, 219-229.

Clauss, Marcus; Reese, S; Eulenberger, K (2009). Macroscopic digestive anatomy of a captive lowland anoa (Bubalus depressicornis). In: Clauss, M; Fidgett, A; Hatt, J M; Huisman, T; Hummel, J; Janssen, G; Nijboer, J; Plowman, A. Zoo Animal Nutrition, Vol. IV. Fürth: Filander, 255-263.

Clauss, Marcus; Lang-Deuerling, S; Kienzle, E; Medici, E P; Hummel, J (2009). Mineral absorption in tapirs (Tapirusspp.) as compared to the domestic horse. Journal of Animal Physiology and Animal Nutrition, 93(6):768-776.

Hummel, J; Südekum, K H; Bayer, D; Ortmann, S; Streich, W J; Hatt, J M; Clauss, Marcus (2009). Physical characteristics of reticuloruminal contents of oxen in relation to forage type and time after feeding. Journal of Animal Physiology and Animal Nutrition, 93(2):209-220.

Clauss, Marcus; Fritz, J; Bayer, D; Nygren, K; Hammer, S; Hatt, J M; Südekum, K H; Hummel, J (2009). Physical characteristics of rumen contents in four large ruminants of different feeding type, the addax (Addax nasomaculatus), bison (Bison bison), red deer (Cervus elaphus) and moose (Alces alces). Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 152(3):398-406.

Clauss, Marcus; Fritz, J; Bayer, D; Hummel, J; Streich, W J; Südekum, K H; Hatt, J M (2009). Physical characteristics of rumen contents in two small ruminants of different feeding type, the mouflon (Ovis ammon musimon) and the roe deer (Capreolus capreolus). Zoology, 112(3):195-205.

Zenker, W; Clauss, Marcus; Huber, J; Altenbrunner-Martinek, B (2009). Rumen pH and hoof health in two groups of captive wild ruminants. In: Clauss, M; Fidgett, A; Hatt, J M; Huisman, T; Hummel, J; Janssen, G; Nijboer, J; Plowman, A. Zoo Animal Nutrition, Vol. IV. Fürth: Filander, 247-254.

Zoo Animal Nutrition IV. Edited by: Clauss, M; Fidgett, A; Janssens, G; Hatt, J M; Huisman, T; Hummel, J; Nijboer, J; Plowman, A (2009). Fuerth, Germany: Filander.

Clauss, Marcus; Hummel, J (2008). Getting it out of the (digestive) system : hindgut fermenters and calcium. In: 7th Biennial Symposium of the Comparative Nutrition Society, Liscomb Mills, Nova Scotia , 8 August 2008 - 13 August 2008, 30-36.

Clauss, Marcus; Streich, W J; Nunn, C L; Ortmann, S; Hohmann, G; Schwarm, A; Hummel, J (2008). The influence of natural diet composition, food intake level, and body size on ingesta passage in primates. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 150(3):274-281.

Clauss, Marcus; Hummel, J; Schwarm, A; Steuer, P; Fritz, J; Martin Jurado, O; Tschudin, A; Hatt, J M (2008). An isthmus at the caecocolical junction is an anatomical feature of domestic and wild equids. European Journal of Wildlife Research, 54(2):347-351.

Hofmann, R R; Streich, W J; Fickel, J; Hummel, J; Clauss, Marcus (2008). Convergent evolution in feeding types: salivary gland mass differences in wild ruminant species. Journal of Morphology, 269(2):240-257.

Hummel, J; Fritz, J; Kienzle, E; Medici, E P; Lang, S; Zimmermann, W; Streich, W J; Clauss, Marcus (2008). Differences in fecal particle size between free-ranging and captive individuals of two browser species. Zoo Biology, 27(1):70-77.

Hummel, J; Steuer, P; Südekum, K H; Hammer, S; Hammer, C; Streich, W J; Clauss, Marcus (2008). Fluid and particle retention in the digestive tract of the addax antelope (Addax nasomaculatus)--adaptations of a grazing desert ruminant. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 149(2):142-149.

Clauss, Marcus; Hofmann, R R; Streich, W J; Fickel, J; Hummel, J (2008). Higher masseter muscle mass in grazing than in browsing ruminants. Oecologia, 157(3):377-385.

Hummel, J; Gee, C T; Südekum, K H; Sander, P M; Nogge, G; Clauss, Marcus (2008). In vitro digestibility of fern and gymnosperm foliage: implications for sauropod feeding ecology and diet selection. Proceedings of the Royal Society B: Biological Sciences, 275(1638):1015-1021.

Clauss, Marcus; Hummel, J; Streich, W J; Südekum, K H (2008). Mammalian metabolic rate scaling to 2/3 or 3/4 depends on the presence of gut contents. Evolutionary Ecology Research, 10:153-154.

Hummel, J; Clauss, Marcus (2008). Megaherbivores as pacemakers of carnivore diversity and biomass: distributing or sinking trophic energy. Evolutionary Ecology Research, 10:925-930.

Munn, A J; Streich, W J; Hummel, J; Clauss, Marcus (2008). Modelling digestive constraints in non-ruminant and ruminant foregut-fermenting mammals. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 151(1):78-84.

Clauss, Marcus; Wittenbrink, M M; Castell, J C; Kienzle, E; Dierenfeld, E S; Flach, E J; Macgregor, S K; Hoppe, T; Hummel, J; Streich, W J; Hatt, J M (2008). Quantification of Enterobacteriaceae in faeces of captive black rhinoceros (Diceros bicornis) in relation to dietary tannin supplementation. Journal of Animal Physiology and Animal Nutrition, 92(1):29-34.

Clauss, Marcus; Kaiser, T; Hummel, J (2008). The morphophysiological adaptations of browsing and grazing mammals. In: Gordon, I J; et al. The ecology of browsing and grazing. Berlin: Springer, 47-88.

Clauss, Marcus; Schwarm, A; Ortmann, S; Streich, W J; Hummel, J (2007). A case of non-scaling in mammalian physiology? Body size, digestive capacity, food intake, and ingesta passage in mammalian herbivores. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 148(2):249-265.

Clauss, Marcus; Castell, J C; Kienzle, E; Schramel, P; Dierenfeld, E S; Flach, E J; Behlert, O; Streich, W J; Hummel, J; Hatt, J M (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.

Clauss, Marcus; Steinmetz, H W; Eulenberger, U; Ossent, P; Zingg, R; Hummel, J; Hatt, J M (2007). Observations on the length of the intestinal tract of African Loxodonta africana (Blumenbach 1797) and Asian elephants Elephas maximus (Linne 1735). European Journal of Wildlife Research, 53(1):68-72.

Clauss, Marcus; Castell, J C; Kienzle, E; Dierenfeld, E S; Flach, E J; Behlert, O; Ortmann, S; Streich, W J; Hummel, J; Hatt, J M (2007). The influence of dietary tannin supplementation on digestive performance in captive black rhinoceros (Diceros bicornis). Journal of Animal Physiology and Animal Nutrition, 91(11-12):449-458.

Clauss, Marcus; Streich, W J; Schwarm, A; Ortmann, S; Hummel, J (2007). The relationship of food intake and ingesta passage predicts feeding ecology in two different megaherbivore groups. Oikos, 116(2):209-216.

Clauss, Marcus; Hatt, J M; Hummel, J (2006). Fütterung grosser Pflanzenfresser. In: Arbeitstagung der Zootierärzte im deutschsprachigen Raum, Frankfurt, 3 November 2006 - 5 November 2006.

Rose, P; Hummel, J; Clauss, Marcus (2006). Food and calculated energy intake in captive giraffe (Giraffa camelopardalis) in the UK. In: 6th Congress of the European Association of Zoo and Wildlife Veterinarians, Budapest (Hungary), 24 May 2006 - 28 May 2006, 289.

Hummel, J; Zimmermann, W; Langenhorst, T; Schleussner, G; Damen, M; Clauss, Marcus (2006). Giraffe husbandry and feeding practices in Europe. Results of an EEP survey. In: 6th Congress of the European Association of Zoo and Wildlife Veterinarians, Budapest (Hungary), 24 May 2006 - 28 May 2006, 71-74.

Clauss, Marcus; Rose, P; Hummel, J; Hatt, J M (2006). Serous fat atrophy and other nutrition-related health problems in captive giraffe (Giraffa camelopardalis). An evaluation of 83 necropsy reports. In: 6th Congress of the European Association of Zoo and Wildlife Veterinarians, Budapest (Hungary), 24 May 2006 - 28 May 2006, 233-235.

Clauss, Marcus; Pellegrini, N; Castell, J C; Kienzle, E; Dierenfeld, E S; Hummel, J; Flach, E J; Streich, W J; Hatt, J M (2006). Antioxidant status of faeces of captive black rhinoceros (Diceros bicornis) in relation to dietary tannin supplementation. Journal of Veterinary Medicine Series A, 53(6):319-322.

Höllerl, S; Stimm, B; Hummel, J; Clauss, Marcus (2006). Browse provision for captive herbivores. Design and management of a browse plantation. In: Fidgett, A; Clauss, M; Eulenberger, K; Hatt, J M; Hume, I; Janssens, G; Nijboer, J. Zoo animal nutrition Vol. III. Fürth: Filander, 211-212.

Clauss, Marcus; Castell, J C; Kienzle, E; Dierenfeld, E S; Flach, E J; Behlert, O; Ortmann, S; Streich, W J; Hummel, J; Hatt, J M (2006). Digestion coefficients achieved by the black rhinoceros (Diceros bicornis), a large browsing hindgut fermenter. Journal of Animal Physiology and Animal Nutrition, 90(7-8):325-334.

Schwarm, A; Ortmann, S; Hofer, H; Streich, W J; Flach, E J; Kühne, R; Hummel, J; Castell, J C; Clauss, Marcus (2006). Digestion studies in captive Hippopotamidae: a group of large ungulates with an unusually low metabolic rate. Journal of Animal Physiology and Animal Nutrition, 90(7-8):300-308.

Hummel, J; Nogge, G; Clauss, Marcus; Nørgard, C; Johanson, K; Nijboer, J; Pfeffer, E (2006). Energy supply of the okapi in captivity: fermentation characteristics of feedstuffs. Zoo Biology, 25(4):251-266.

Hummel, J; Pfeffer, E; Nørgard, C; Johanson, K; Clauss, Marcus; Nogge, G (2006). Energy supply of the okapi in captivity: intake and digestion trials. Zoo Biology, 25(4):303-316.

Clauss, Marcus; Hänichen, T; Hummel, J; Ricker, U; Block, K; Grest, P; Hatt, J M (2006). Excessive iron storage in captive omnivores? The case of the coati (Nasua spp.). In: Fidgett, A; Clauss, M; Eulenberger, K; Hatt, J M; Hume, I; Janssens, G; Nijboer, J. Zoo animal nutrition Vol. III. Fürth: Filander, 91-99.

Hummel, J; Clauss, Marcus (2006). Feeding. In: Barta, Z; Clauss, M; Culik, L; Damen, M; Hummel, J; Schleussner, G; Tomasova, K; Zimmermann, W. EAZA Husbandry and Management Guidelines for Giraffa camelopardalis. Arnhem: Burger's Zoo, 29-61.

Hummel, J; Südekum, K H; Streich, W J; Clauss, Marcus (2006). Forage fermentation patterns and their implications for herbivore ingesta retention times. Functional Ecology, 20(6):989-1002.

Clauss, Marcus; Castell, J C; Kienzle, E; Schramel, P; Dierenfeld, E S; Flach, E J; Behlert, O; Hatt, J M; Streich, W J; Hummel, J (2006). Macromineral absorption in the black rhinoceros (Diceros bicornis) compared with the domestic horse. Journal of Nutrition, 136(7 Supp):2017S-2020S.

Clauss, Marcus; Hofmann, R R; Hummel, J; Adamczewski, J; Nygren, K; Pitra, C; Streich, W J; Reese, S (2006). Macroscopic anatomy of the omasum of free-ranging moose (Alces alces) and muskoxen (Ovibos moschatus) and a comparison of the omasal laminal surface area in 34 ruminant species. Journal of Zoology, 270(2):346-358.

Clauss, Marcus; Hummel, J; Eloff, P; Willats, R (2006). Sources of high iron content in manufactured pelleted feeds: a case report. In: Fidgett, A; Clauss, M; Eulenberger, K; Hatt, J M; Hume, I; Janssens, G; Nijboer, J. Zoo animal nutrition Vol. III. Fürth: Filander, 101-102.

Clauss, Marcus; Hummel, J; Völlm, J; Lorenz, A; Hofmann, R R (2006). The allocation of a ruminant feeding type to the okapi (Okapia johnstoni) on the basis of morphological parameters. In: Fidgett, A; Clauss, M; Eulenberger, K; Hatt, J M; Hume, I; Janssens, G; Nijboer, J. Zoo animal nutrition Vol. III. Fürth: Filander, 253-270.

Clauss, Marcus; Hummel, J; Streich, W J (2006). The dissociation of the fluid and particle phase in the forestomach as a physiological characteristic of large grazing ruminants: an evaluation of available, comparable ruminant passage data. European Journal of Wildlife Research, 52(2):88-98.

Hummel, J; Clauss, Marcus; Baxter, E; Flach, E J; Johanson, K (2006). The influence of roughage intake on the occurrence of oral disturbances in captive giraffids. In: Fidgett, A; Clauss, M; Eulenberger, K; Hatt, J M; Hume, I; Janssens, G; Nijboer, J. Zoo animal nutrition Vol. III. Fürth: Filander, 235-252.

Clauss, Marcus; Hummel, J (2006). The next meal is today: feeding recommendations in the absence of scientifically sound results – the question of iron availability. In: Fidgett, A; Clauss, M; Eulenberger, K; Hatt, J M; Hume, I; Janssens, G; Nijboer, J. Zoo animal nutrition Vol. III. Fürth: Filander, 103-106.

Clauss, Marcus; Hummel, J (2005). Bemerkungen zur Ernährung von Zootieren: Mischfutterhersteller können wirksam Unterstützung leisten. Kraftfutter, (12):12-17.

Hatt, J M; Schaub, D; Wanner, M; Wettstein, H R; Flach, E J; Tack, C; Hässig, M; Ortmann, S; Hummel, J; Clauss, Marcus (2005). Energy and fibre intake in a group of captive giraffe (Giraffa camelopardalis) offered increasing amounts of browse. Journal of Veterinary Medicine Series A, 52(10):485-490.

Hummel, J; Clauss, Marcus; Zimmermann, W; Johanson, K; Nørgaard, C; Pfeffer, E (2005). Fluid and particle retention in captive okapi (Okapia johnstoni). Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 140(4):436-444.

Clauss, Marcus; Fröschle, T; Castell, J C; Hummel, J; Hatt, J M; Ortmann, S; Streich, W J (2005). Fluid and particle retention times in the black rhinoceros (diceros bicornis), a large hindgut-fermenting browser. Acta Theriologica, 50(3):367-376.

Clauss, Marcus; Hummel, J; Vercammen, F; Streich, W J (2005). Observations on the macroscopic digestive anatomy of the Himalayan tahr (Hemitragus jemlahicus). Anatomia, Histologia, Embryologia: Journal of Veterinary Medicine Series C, 34(4):276-278.

Clauss, Marcus; Robert, N; Walzer, C; Vitaud, C; Hummel, J (2005). Testing predictions on body mass and gut contents: dissection of an African elephant Loxodonta africana Blumenbach 1797. European Journal of Wildlife Research, 51(4):291-294.

Clauss, Marcus; Hummel, J (2005). The digestive performance of mammalian herbivores: why big may not be that much better. Mammal Review, 35(2):174-187.

Clauss, Marcus; Schwarm, A; Ortmann, S; Alber, D; Flach, E J; Kühne, R; Hummel, J; Streich, W J; Hofer, H (2004). Intake, ingesta retention, particle size distribution and digestibility in the hippopotamidae. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 139(4):449-459.

This list was generated on Fri Jul 21 05:34:54 2017 CEST.