n = 65    h-Index 21      


Birkinshaw A, Schwarm A, Marquardt S, Kreuzer M, Terranova M (2020) Rapid responses in bovine milk fatty acid composition and phenol content to various tanniferous forages, J Anim Feed Sci, 29:297-305, https://doi.org/10.22358/jafs/131171/2020

Terranova M, Eggerschwiler L, Ortmann S, Clauss M, Kreuzer M, Schwarm A (2020) Increasing the proportion of hazel leaves in the diet of dairy cows reduced methane yield and excretion of nitrogen in volatile form, but not milk yield, Anim Feed Sci Technol, accepted

Schwarm A (2020) Replacing lectures with exercises to promote learning in Life Sciences. ETH Learning and Teaching Journal, 2:19-29, https://learningteaching.ethz.ch | ISSN 2624-7984 (Print) | ISSN 2624-7992 (Online)

Kiani A, Wolf C, Giller K, Eggerschwiler L, Kreuzer M, Schwarm A (2020) In vitro ruminal fermentation and methane inhibitory effect of three species of microalgae, Can J Anim Sci, 100:485-493, https://doi.org/10.1139/cjas-2019-0187

Chen J, Holo H, Schwarm A, Harstad OM (2020) Ruminal survival of Propionibacterium thoenii T159 in dairy cows at high feed intake, Acta Agric Scand A, 69:189-191, https://doi.org/10.1080/09064702.2020.1769719

Poteko J, Schrade S, Zeyer K, Mohn J, Zaehner M, Zeitz JO, Kreuzer M, Schwarm A (2020) Methane emissions and milk fatty acid profiles in dairy cows fed linseed, measured at the group level in a naturally ventilated housing and individually in respiration chambers, Animals, 10:1091, https://doi.org/10.3390/ani10061091

Meese S, Ulbrich SE, Bollwein H, Bruckmaier R, Wellnitz O, Kreuzer M, Roentgen M, Gimsa U, Schwarm A (2020) Methane emission, metabolism and performance of Holstein dairy cows with low, medium and high lymphocyte proliferation during transition, J Dairy Sci, 103:4367-4377, https://doi.org/10.3168/jds.2019-17584

Clauss M, Dittmann MT, Vendl C, Hagen KB, Frei S, Ortmann S, Mueller DWH, Hammer S, Munn AJ, Schwarm A, Kreuzer M (2020) Comparative methane production in mammalian herbivores, Animal, 14:S1, s113-s123, https://doi.org/10.1017/S1751731119003161

Denninger TM, Schwarm A, Birkinshaw A, Terranova M, Dohme-Meier F, Muenger A, Eggerschwiler L, Bapst B, Wegmann S, Clauss M, Kreuzer M (2020) Immediate effect of Acacia mearnsii tannins on methane emissions and milk fatty acid profiles of dairy cows, Anim Feed Sci Technol, 261:114388, https://doi.org/10.1016/j.anifeedsci.2019.114388

Denninger TM, Schwarm A, Dohme-Meier F, Münger A, Bapst B, Wegmann S, Grandl F, Vanlierde A, Sorg D, Ortmann S, Clauss M, Kreuzer M (2020) Accuracy of methane emissions predicted from milk mid-infrared spectra and measured by laser methane detectors in Brown Swiss dairy cows, J Dairy Sci, 103:2024-2039, https://doi.org/10.3168/jds.2019-17101

Terranova M, Wang S, Eggerschwiler L, Braun U, Kreuzer M, Schwarm A (2020) Dose-response effects of woody and herbaceous forage plants on in vitroruminal methane and ammonia formation, and their short-term palatability in lactating cows, Animal, 14:538-548, https://doi.org/10.1017/S1751731119002076


Denninger TM, Dohme-Meier F, Eggerschwiler L, Vanlierde A, Grandl F, Gredler B, Kreuzer M, Schwarm A, Münger A (2019) Persistence of differences between dairy cows categorized as low or high methane emitters, as estimated from milk mid-infrared spectra and measured by GreenFeed, J Dairy Sci, 102:11751-11765, https://doi.org/10.3168/jds.2019-16804

Wang S, Giller K, Hillmann E, Marquardt S, Schwarm A (2019) Effect of supplementation of pelleted hazel (Corylus avellana) leaves on blood antioxidant activity, cellular immune response and heart beat parameters in sheep, J Anim Sci, 4496-4502, https://doi.org/10.1093/jas/skz288

Benaouda M, Martin C, Li X, Kebreab E, Hristov AN, Yu Z, Yanez-Ruiz DR, Reynolds CK, Crompton LA, Dijkstra J, Bannink A, Schwarm A, Kreuzer A, McGee M, Lund P, Hellwing ALF, Weisbjerg MR, Moate PJ, Bayat AR, Shingfield KJ, Peiren N, Eugene M (2019). Evaluation of the performance of existing mathematical models predicting enteric methane emissions from ruminants: Animal categories and dietary mitigation strategies. Anim Feed Sci Technol, 255:114207, https://doi.org/10.1016/j.anifeedsci.2019.114207

Van Lingen HJ, Niu M, Kebreab E, Valadares Filho SC, Rooke JA, Duthie C-A, Schwarm A, Kreuzer M, Hynd PI, Caetano M, Eugène M, Martin C, McGee M, O’Kiely P, Hünerberg M, McAllister TA, Berchielli TT, Messana JD, Peiren N, Chaves AV, Charmley E, Cole NA, Hales KE, Lee S-S, Berndt A, Reynolds CK, Crompton LA, Bayat A-R, Yáñez-Ruiz DR, Yu Z, Bannink A, Dijkstra J, Casper DP, Hristov AN (2019) Prediction of enteric methane production, yield and intensity of beef cattle using an intercontinental database, Agric, Ecosys & Environ, 283:106575, https://doi.org/10.1016/j.agee.2019.106575

Hristov AN, Bannink A, Crompton LA, Huhtanen P, Kreuzer M, McGee M, Noziere P, Reynolds CK, Bayat AR, Yanez-Ruiz DR, Dijkstra J, Kebreab E, Schwarm A, Shingfield KJ, Yu Z (2019). Nitrogen in ruminant nutrition: a review of measurement techniques, J Dairy Sci, 102:5811-5852, https://doi.org/10.3168/jds.2018-15829

Matsuda I, Espinosa-Gómez F.C., Ortmann S., Sha J.C.M., Osman I., Nijboer J., Schwarm A., Ikeda T., Clauss M (2019) Retention marker excretion suggests incomplete digesta mixing across the order primates, Physiol Behav, 208:112558, https://doi.org/10.1016/j.physbeh.2019.112558

Kiani A, Clauss M, Ortmann S, Vendl C, Congdon ER, Herrera EA, Kreuzer M, Schwarm A (2019) Digestive physiology of captive capybara (Hydrochoerus hydrochaeris), Zoo Biol, 38:167-179, https://doi.org/10.1002/zoo.21472


Terranova M, Kreuzer M, Braun U, Schwarm A (2018) In vitro screening of temperate climate forages from a variety of woody plants for their potential to mitigate ruminal methane and ammonia formation. J Agric Sci, 156:929-941, https://doi.org/10.1017/S0021859618000989

Meese S, Gimsa U, Röntgen M, Weitzel JM, Tuchscherer A, Miersch C, Vernunft A, Viergutz T, Kreuzer M, Schwarm A (2018) Effect of immune modulators and lactation number on in vitro proliferation of lymphocytes from nonpregnant dairy heifers and cows. Can J Anim Sci, 98:898-901, https://doi.org/10.1139/CJAS-2017-0143pdf

Wang S, Meese S, Ulbrich SE, Bollwein H, Röntgen M, Gimsa U, Schwarm A (2018) Effect of immune modulators on in vitro activation and proliferation of peripheral blood mononuclear cells from multiparous Holstein cows peripartum. J Anim Physiol Anim Nutr, 102:1515-1520, https://doi.org/10.1111/jpn.12972

Wang S, Müller A, Hilfiker D, Marquardt S, Kreuzer M, Braun U, Schwarm A (2018) Effect of individual Ayurveda plants and mixtures thereof on in vitro ruminal fermentation, methane production and nutrient degradability, Anim Prod Sci, 58:2258-2268, https://doi.org/10.1071/AN17174

Niu M, Kebreab E, Hristov AN, Oh J, Arndt C, Bannink A, Bayat AR, Brito AF, Boland T, Casper D, Crompton LA, Dijkstra J, Eugene MA, Garnsworthy PC, Haque MN, Hellwing ALF, Huhtanen P, Kreuzer M, Kuhla B, Lund P, Madsen J, Martin C, McClelland SC, McGee M, Moate PJ, Muetzel S, Munoz C, O’Kiely P, Peiren N, Reynolds CK, Schwarm A, Shingfield KJ, Storlien TM, Weisbjerg MR, Yanez-Ruiz DR, Yu Z (2018) Prediction of enteric methane production, yield and intensity in dairy cattle using an intercontinental database. Global Change Biol, 24:3368-3389, https://doi.org/10.1111/gcb.14094, pdf

Hristov AN, Kebreab E, Niu M, Oh J, Bannink A, Bayat AR, Boland TB, Brito AF, Casper DP, Crompton LA, Dijkstra J, Eugene M, Garnsworthy PC, Haque N, Hellwing ALF, Huhtanen P, Kreuzer M, Kuhla B, Lund P, Madsen J, Martin C, Moate PJ, Muetzel S, Munoz C, Peiren N, Powell JM, Reynolds CK, Schwarm A, Shingfield KJ, Storlien TM, Weisbjerg MR, Yanez-Ruiz DR, Yu Z (2018) Uncertainties in enteric methane inventories, measurement techniques, and prediction models. J Dairy Sci, 101: 6655-6674, https://doi.org/10.3168/jds.2017-13536, pdf

Grandl F, Schwarm A, Ortmann S, Furger M, Kreuzer M, Clauss M (2018) Kinetics of solutes and particles of different size in the digestive tract of cattle of 0.5 to 10 years of age, and relationships with methane production. J Anim Physiol Anim Nutr, 102: 639-651, https://doi.org/10.1111/jpn.12862

Wang S, Terranova M, Kreuzer M, Marquardt S, Eggerschwiler L, Schwarm A (2018) Supplementation of pelleted hazel (Corylus avellana) leaves decreases methane and urinary nitrogen emissions by sheep at unchanged forage intake. Sci Rep, 8: 5427, https://doi.org/10.1038/s41598-018-23572-3, pdf

Grosse Brinkhaus A, Bee G, Schwarm A, Kreuzer M, Dohme-Meier F, Zeitz JO (2018) Rumen microbial protein synthesis and nitrogen efficiency as affected by tanniferous and non-tanniferous forage legumes incubated individually or together in Rumen Simulation Technique. J Sci Food Agric, 98: 1712-1718, https://doi.org/10.1002/jsfa.8643

Zhou X, Stevens MJA, Neuenschwander S, Schwarm A, Kreuzer M, Bratus-Neuenschwander A,  Zeitz JO (2018) The transcriptome response of the ruminal methanogen Methanobrevibacter ruminantium strain M1 to the inhibitor lauric acid. BMC Res Notes, 11: 135, https://doi.org/10.1186/s13104-018-3242-8, pdf

Grandl F, Zeitz JO, Clauss M, Furger M, Kreuzer M, Schwarm A (2018) Evidence for increasing digestive and metabolic efficiency of energy utilization with age of dairy cattle as determined in two feeding regimes. Animal, 12: 515-527, https://doi.org/10.1017/S1751731117001823, pdf

Wang S, Pisarcikova J, Kreuzer M, Schwarm A (2018) Utility of an in vitro test with rumen fluid from slaughtered cattle for capturing variation in methane emission potential between cattle types and with age. Can J Anim Sci, 98: 61-72, https://doi.org/10.1139/cjas-2016-0238


Sorg D, Mühlbach S, Rosner F, Kuhla B, Derno M, Meese S, Schwarm A, Kreuzer M, Swalve H (2017) The agreement between two next-generation laser methane detectors and respiration chamber facilities in recording methane concentrations in the spent air produced by dairy cows. Comp Electr Agric, 143: 262-272, https://doi.org/10.1016/j.compag.2017.10.024

Wang S, Giller K, Kreuzer M, Ulbrich SE, Braun U, Schwarm A (2017) Contribution of ruminal fungi, archaea, protozoa and bacteria to the methane suppression caused by oilseed supplemented diets. Front Microbiol, 8: 1864, https://doi.org/10.3389/fmicb.2017.01864, pdf

Wang S,  Kreuzer M, Braun U, Schwarm A (2017) Effect of unconventional oilseeds (safflower, poppy, hemp, camelina) on in vitro ruminal methane production and fermentation. J Sci Food Agric, 97: 3864–3870, https://doi.org/10.1002/jsfa.8260

Sutter F, Schwarm A, Kreuzer M (2017) Development of nitrogen and methane losses in the first eight weeks of lactation in Holstein cows subjected to deficiency of utilisable crude protein under restrictive feeding conditions. Arch Anim Nutr, 71: 1-20, https://doi.org/10.1080/1745039X.2016.1258880


Dittmann MT, Hammond KJ, Kirton P, Humphries DJ, Crompton LA, Ortmann S, Misselbrook TH, Südekum K-H, Schwarm A, Kreuzer M, Reynolds CK, Clauss M (2016) Influence of ruminal methane on digesta retention and digestive physiology in non-lactating dairy cattle. Brit J Nutr, 116: 763-773, https://doi.org/10.1017/S0007114516002701, pdf

Hammond KJ, Crompton LA, Bannink A, Dijkstra J, Yanez-Ruiz DR, O′Kiely P, Kebreab E, Eugene MA, Yu Z, Shingfield KJ, Schwarm A, Hristov AN, Reynolds CK (2016) Review of current in vivo measurement techniques for quantifying enteric methane emission from ruminants. Anim Feed Sci Technol, 219:13-30, https://doi.org/10.1016/j.anifeedsci.2016.05.018

Yanez-Ruiz DR, Bannink A, Dijkstra J, Kebreab E, Morgavi DP, O′Kiely P, Reynolds CK, Schwarm A, Shingfield KJ, Yu Z, Hristov AN (2016) Design, implementation and interpretation of in vitro batch culture experiments to assess enteric methane mitigation in ruminants – a review. Anim Feed Sci Technol, 216:1-18, https://doi.org/10.1016/j.anifeedsci.2016.03.016

Grandl F, Amelchanka SL, Furger M, Clauss M, Zeitz JO, Kreuzer M, Schwarm A (2016) Biological implications of longevity in dairy cows: 2. Changes in methane emissions and efficiency with age. J Dairy Sci, 99:3472-3485, https://doi.org/10.3168/jds.2015-10261

Grandl F, Luzi SP, Furger M, Zeitz JO, Leiber F, Ortmann S, Clauss M, Kreuzer M, Schwarm A (2016) Biological implications of longevity in dairy cows: 1. Changes in feed intake, feeding behavior and digestion with age. J Dairy Sci, 99:3457-3471, https://doi.org/10.3168/jds.2015-10261, pdf, EDITOR’S CHOICE


Zhou X, Zeitz JO, Meile L, Kreuzer M, Schwarm A (2015) Influence of pH and the degree of protonation on the inhibitory effect of fatty acids in the ruminal methanogen Methanobrevibacter ruminantium strain M1. J Appl Microbiol, 119:1482-1493, https://doi.org/10.1111/jam.12955

Dittmann MT, Runge U, Ortmann S, Lang RA, Moser D, Galeffi C, Schwarm A, Kreuzer M, Clauss M (2015) Digesta retention patterns of solute and different-sized particles in camelids compared with ruminants and other foregut fermenters. J Comp Physiol B, 185:559-573, https://doi.org/10.1007/s00360-015-0904-x

Matsuda I, Sha JCM, Ortmann S, Schwarm A, Grandl F, Caton J, Jens W, Kreuzer M, Marlena D, Hagen KB, Clauss M (2015) Excretion patterns of solute and different-sized particle passage markers in foregut-fermenting proboscis monkey (Nasalis larvatus) do not indicate an adaptation for rumination. Physiol Behav, 149:45-52, https://doi.org/10.1016/j.physbeh.2015.05.020

Schwarm A, Schweigel-Röntgen M, Kreuzer M, Ortmann S, Gill F, Kuhla B, Meyer U, Lohölter M, Derno M (2015) Methane emission, digestive characteristics and faecal archaeol in heifers fed diets based on silage from brown midrib maize as compared to conventional maize. Arch Anim Nutr, 69: 159-176, https://doi.org/10.1080/1745039X.2015.104321

Dittmann MT, Hummel J, Hammer S, Arif A, Hebel C, Müller DHW, Fritz J, Steuer P, Schwarm A, Kreuzer M, Clauss M (2015) Digesta kinetics in gazelles in comparison to other ruminants: Evidence for taxon-specific rumen fluid throughput to adjust digesta washing to the natural diet. Comp Biochem Physiol A, 185: 58-68, https://doi.org/10.1016/j.cbpa.2015.01.013


Schwarm A, Ortmann S, Fritz J, Flach E, Rietschel W, Clauss M (2013) No distinct stratification of ingesta particles and no distinct moisture gradient in the forestomach of nonruminants: the wallaby, peccary, hippopotamus, and sloth. Mammal Biol 78: 412-421, https://doi.org/10.1016/j.mambio.2013.04.001

Derno M, Nürnberg G, Schön P, Schwarm A, Röntgen M, Hammon HM, Metges CC, Bruckmaier RM, Kuhla B (2013) Short-term feed intake is regulated by macronutrient oxidation in lactating Holstein cows. J Dairy Sci, 96:971-980, https://doi.org/10.3168/jds.2012-5727

Müller DWH, Codron D, Meloro C, Munn A, Schwarm A, Hummel J, Clauss M (2013) Assessing the Jarman-Bell Principle: Scaling of intake, digestibility, retention time and gut fill with body mass in mammalian herbivores. Comp Biochem Physiol A, 164: 129-140, https://doi.org/10.1016/j.cbpa.2012.09.018

Schwarm A, Viergutz T, Kuhla B, Hammon HM, Schweigel-Röntgen M (2013) Fuel feeds function: energy balance and bovine peripheral blood mononuclear cell activation. Comp Biochem Physiol A, 164: 101-110, https://doi.org/10.1016/j.cbpa.2012.10.009


Fritz J, Streich WJ, Schwarm A, Clauss M (2012) Condensing results of wet sieving analyses into a single data: a comparison of methods for particle size description. J Anim Physiol An N, 96: 783-797, https://doi.org/10.1111/j.1439-0396.2011.01183.x


Müller DWH, Caton J, Codron D, Schwarm A, Lentle R, Streich WJ, Hummel J, Clauss M (2011) Phylogenetic constraints on digesta separation: Variation in fluid throughput in the digestive tract in mammalian herbivores. Comp Biochem Physiol A, 160:207-220, https://doi.org/10.1016/j.cbpa.2011.06.004

Schwarm A, Albrecht S, Ortmann S, Wolf C, Clauss M (2011) Digesta retention time in roe deer Capreolus capreolus, as measured with cerium-, lanthanum-, and chromium- mordanted fibre. Eur J Wildlife Res, 57: 437-442, https://doi.org/10.1007/s10344-010-0450-5


Schwarm A, Ortmann S, Rietschel W, Kühne R, Wibbelt G, Clauss M (2010) Function, size and form of the gastrointestinal tract of the collared Pecari tajacu (Linnaeus 1758) and white-lipped peccary Tayassu pecari (Link 1795). Eur J Wildlife Res, 56: 569-576, https://doi.org/10.1007/s10344-009-0348-2


Schwarm A, Ortmann S, Wolf C, Streich WJ, Clauss M (2009) Passage marker excretion in red kangaroo (Macropus rufus), collared peccary (Pecari tajacu) and colobine monkeys (Colobus angolensis, C. polykomos, Trachypithecus johnii). J Exp Zool A, 311: 647-661, https://doi.org/10.1002/jez.552, JOURNAL COVER

Schwarm A, Ortmann S, Wolf C, Clauss M (2009) No distinct difference in the excretion of large particles of varying size in a wild ruminant, the banteng (Bos javanicus). Eur J Wildlife Res, 55: 531-533, https://doi.org/10.1007/s10344-009-0277-0

Schwarm A, Ortmann S, Wolf C, Streich WJ, Clauss M (2009) More efficient mastication allows increasing intake without compromising digestibility or necessitating a larger gut: Comparative feeding trials in banteng (Bos javanicus) and pygmy hippopotamus (Hexaprotodon liberiensis). Comp Biochem Physiol A, 152: 504-512, https://doi.org/10.1016/j.cbpa.2008.12.006

Schwarm A, Schweigert M, Ortmann S, Hummel J, Janssens GPJ, Streich WJ, Clauss M (2009) No easy solution for the fractionation of faecal nitrogen in captive wild herbivores: results of a pilot study. J Anim Physiol An N, 93: 596-605, https://doi.org/10.1111/j.1439-0396.2008.00842.x


Schwarm A, Ortmann S, Wolf C, Streich WJ, Clauss M (2008) Excretion patterns of fluid and different sized particle passage markers in banteng (Bos javanicus) and pygmy hippopotamus (Hexaprotodon liberiensis): two functionally different foregut fermenters. Comp Biochem Physiol A, 150: 32-39, https://doi.org/10.1016/j.cbpa.2008.02.022

Clauss M, Streich WJ, Nunn CL, 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. Comp Biochem Physiol A, 150: 274-281, https://doi.org/10.1016/j.cbpa.2008.03.012

Clauss M, Hummel J, Schwarm A, Steuer P, Fritz J, Martin Jurado O, Tschudin A, Hatt JM (2008) An isthmus at the caecocolical junction is an anatomical feature of domestic and wild equids. Eur J Wildlife Res, 54: 347-351, https://doi.org/10.1007/s10344-007-0126-y

Wings O, Hatt JM, Schwarm A, Clauss M (2008) Gastroliths in a pygmy hippopotamus (Hexaprotodon liberiensis Morton 1844). Senckenb Biol, 88: 345-348.


Clauss M, Schwarm A, Ortmann S, Streich WJ, Hummel J (2007) A case of non-scaling in mammalian physiology? Body size, digestive capacity, food intake, and ingesta passage in mammalian herbivores. Comp Biochem Physiol A, 148: 249-265, https://doi.org/10.1016/j.cbpa.2007.05.024

Clauss M, Streich WJ, 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: 209-216, https://doi.org/10.1111/j.0030-1299.2007.15461.x

Clauss M, Besselmann D, Schwarm A, Ortmann S, Hatt J-M (2007) Demonstrating coprophagy with passage markers? The example of the plains viscacha (Lagostomus maximus). Comp Biochem Physiol A, 147: 453-459, https://doi.org/10.1016/j.cbpa.2007.01.013


Schwarm A, Ortmann S, Hofer H, Streich WJ, Flach EJ, Kühne R, Hummel J, Castell JC, Clauss M (2006) Digestion studies in captive Hippopotamidae: a group of large ungulates with an unusually low metabolic rate. J Anim Physiol Anim N, 90: 300-308, https://doi.org/10.1111/j.1439-0396.2005.00599.xpdf


Clauss M, Schwarm A, Ortmann S, Alber D, Flach EJ, Kühne R, Hummel J, Streich WJ, Hofer H (2004) Intake, ingesta retention, particle size distribution and digestibility in the hippopotamidae. Comp Biochem Physiol A, 139: 449-459, https://doi.org/10.1016/j.cbpb.2004.10.002

Journal of Experimental Zoology


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