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Florian Leiber
(Dr. sc. nat.)

Department of Livestock Sciences
Head of Department
Ackerstrasse 113
CH- 5070 Frick

Phone +41 (0)62 865-7217
Fax +41 (0)62 865-7273

Leiber Florian

Activity areas

  • Animal Nutrition
  • Member of the board of directors

Completed projects

Training / professional career

  • Since 2016 Head of the Department of Livestock Sciences and Member of the FiBL board of directors
  • 2012 - 2015 Scientific collaborator at the Department of Livestock Sciences FiBL
  • 2007 - 2012 Senior scientist in the animal nutrition group, ETH Zurich
  • 2004 - 2007 Researcher in the agricultural section at Goetheanum, Dornach
  • 2001 - 2004 PhD studies in the animal nutrition group, ETH Zurich
  • 1996 - 2001 Studies in agriculture, Humboldt-University, Berlin


Publications in the Organic Eprints archive

Publications that are not in the database Organic Eprints

researcherid.com: List of Publications of Florian Leiber


  • Doktorarbeit. Diss ETH No 15735. Causes and extent of variation in yield, nutritional quality and cheese-making properties of milk by high altitude grazing of dairy cows. Verteidigt: 24. September 2004. Gedruckt 2005. ETH Zürich.
  • Diplomarbeit. Analyse der Dauerleistungskühe in der deutschen Holstein Population. Mit besonderer Berücksichtigung der „100.000-Liter-Kühe“. Humboldt Universität Berlin, Landwirtschaftlich-Gärtnerische Fakultät, Institut für Nutztierwissenschaften, Fachgebiet Züchtungsmethodik. 14.05.2001. DOI: dx.doi.org/10.13140/RG.2.1.2629.5841

Peer-reviewed publications

  • Marquardt, S., Barsila, S.R., Amelchanka, S.L., Devkota, N.R., Kreuzer, M., Leiber, F. 2018. Fatty acid profile of ghee derived from two genotypes (cattle-yak vs. yak) grazing different alpine Himalayan pasture sites. Animal Production Science 58:358-368.
  • Muller, A., Schader, C., El –Hage Scialabba, N., Brüggemann, J., Isensee, A., Erb, K.-H., Smith, P., Klocke, P., Leiber, F., Stolze, M., Niggli, U. 2017. Strategies for feeding the world more sustainably with organic agriculture. Nature Communications 8 :1290.
  • Stadtlander, T., Stamer, A., Buser, A., Wohlfahrt, J., Leiber, F., Sandrock, C. 2017. Hermetia illucens meal as fish meal replacement for rainbow trout on farm. Journal of Insects as Food and Feed 3:165-175.
  • Ammer, S., Quander, N., Posch, J., Maurer, V., Leiber, F. 2017. Mastleistung von Bruderhähnen bei Fütterung mit unterschiedlichen Proteinquellen. Agrarforschung Schweiz 8:120-125.
  • Leiber, F., Schenk, I.K., Maeschli, A., Ivemeyer, S., Zeitz, J.O., Moakes, S., Klocke, P., Staehli, P., Notz, C., Walkenhorst, M. 2017. Implications of feed concentrate reduction in organic grassland-based dairy systems: a long-term on-farm study. Animal 11:2051-2060.
  • Leiber, F., Gelencsér, T., Stamer, A., Amsler, Z., Wohlfahrt, J., Früh, B., Maurer, V. 2017. Insect and legume-based protein sources to replace soybean cake in an organic broiler diet: effects on growth performance and physical meat quality. Renewable Agriculture and Food Systems 32:21–27.
  • Gangnat, I.D.M., Leiber, F., Dufey, P.A., Silacci, P., Kreuzer, M., Berard, J. 2017. Physical activity, forced by steep pastures, affects muscle characteristics and meat quality of suckling beef calves. Journal of Agricultural Science 155:348–359.
  • Leiber, F., Muller, A., Maurer, V., Schader, C., Bieber, A. 2017. Organic dairy farming and sustainability. In: van Belsen, N. (Ed.): Achieving sustainable production of milk Volume 2. Burleigh Dodds Science Publishing. http://dx.doi.org/10.19103/AS.2016.0005.34
  • Leiber, F. 2016. Buckwheat in the Nutrition of Livestock and Poultry. In: Zhang, M., Kreft, I. et al. (Eds.): Molecular Breeding and Nutritional Aspects of Buckwheat. Elsevier, Academic Press. 229-238.
  • Leiber, F., Holinger, M., Zehner, N., Dorn, K., Probst, J.K., Spengler Neff, A. 2016. Intake estimation in dairy cows fed roughage-based diets: an approach based on chewing behaviour measurements. Applied Animal Behaviour Science 185:9–14.
  • Bludau, M.J., Maeschli, A., Leiber, F., Klocke, P., Berezowski, J.A., Bodmer, M., Vidondo, B. 2016. The influence of the rearing period on intramammary infections in Swiss dairy heifers: A cross-sectional study. Preventive Veterinary Medicine 129:23-34.
  • Dorn, K., Leiber, F., Sundrum, A., Holinger, M., Mayer, P., Walkenhorst, M. 2016. A field trial on the effects of pure sodium propionate and a combination with herbal extracts on short term development of subclinical ketosis. Livestock Science 187:87-95.
  • Grandl, F., Luzi, S.P., Furger, M., Zeitz, J.O., 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. Journal of Dairy Science 99: 3457-3471.
  • Zeitz, J.O., Ineichen, S., Soliva, C.R., Leiber, F., Tschuor, A., Braun, U., Kreuzer, M., Clauss, M. 2016. Variability in microbial population and fermentation traits at various sites within the forestomach and along the digestive tract as assessed in goats fed either grass or browse. Small Ruminant Research 136:7–17.
  • Gangnat, I.D.M., Kreuzer, M., Clavijo McCormick, A., Leiber, F., Berard, J. 2016. Carcass and meat quality of finished and non-finished Limousin heifers from alpine livestock systems differing in altitudinal origin of the forage. Archives of Animal Nutrition 70: 108–126.
  • Maurer, V., Holinger, M., Amsler, Z., Früh, B., Wohlfahrt, J., Stamer, A., Leiber, F. 2016. Replacement of soybean cake by Hermetia illucens meal in diets for layers. Journal of Insects as Food and Feed 2:83-90.
  • Schader, C., Muller, A., El-Hage Scialabba, N., Hecht, J., Isensee, A., Erb, K.H., Smith, P., Makkar, H.P.S., Klocke, P., Leiber, F., Schwegler, P., Stolze, M., Niggli, U. 2015. Impacts of feeding less food-competing feedstuffs to livestock on global food system sustainability. Journal of the Royal Society Interface 12:20150891.
  • Leiber, F., Probst, J.K., Zehner, N., Spengler Neff A. 2015. Fress- und Wiederkäuverhalten von Milchkühen bei verschiedenen Fütterungsregimes. Agrarforschung Schweiz 6:462-469.
  • Khiaosa-ard, R., Kreuzer, M., Leiber, F. 2015. Apparent recovery of C18 polyunsaturated fatty acids from feed in cows’ milk: a meta-analysis of the importance of dietary fatty acids and feeding regimes in diets without fat supplementation. Journal of Dairy Science 98:6399-6414.
  • Leiber, F., Dorn, K., Probst, J.K., Isensee, A., Ackermann, N., Kuhn, A., Spengler Neff, A. 2015. Concentrate reduction and sequential roughage offer to dairy cows: effects on milk protein yield, protein efficiency and milk quality. Journal of Dairy Research 82:272-278.
  • Oehen, B., Spengler Neff, A., Leiber, F., Schmid, O., Hoffmann, F., Früh, B. 2015. Tierwohl in der Rindermast: Instrumente zur On-Farm-Erhebung. Agrarforschung Schweiz 6:102-109.
  • Leiber, F., Ivemeyer, S., Perler, E., Krenmayr, I., Mayer, P., Walkenhorst, M. 2015. Determination of faeces particle proportions as a tool for the evaluation of the influence of feeding strategies on fibre digestion in dairy cows. Journal of Animal and Plant Sciences 25:153-159.
  • Leiber, F. 2014. Resigning protein concentrates in dairy cattle nutrition: a problem or a chance? Organic Agriculture 4:269-273.
  • Isensee, A., Leiber, F., Bieber, A., Spengler, A., Ivemeyer, S., Maurer, V., Klocke, P. 2014. Comparison of a classical with a highly formularized body condition scoring system for dairy cattle. Animal 8:1971-1977.
  • Bludau, M.J., Maeschli, A., Leiber, F., Steiner, A., Klocke, P. 2014. Mastitits in dairy heifers: Prevalence and risk factors. The Veterinary Journal 202:566-572.
  • Leiber, F., Jouven, M., Martin, B., Priolo, A., Coppa, M., Prache, S., Heckendorn, F., Baumont, R. 2014. Potentials and challenges for future sustainable grassland utilisation in animal production. Options Mediterraneennes A 109:33-47.
  • Probst, J.K., Spengler Neff, A., Hillmann, E., Kreuzer, M., Koch-Mathis, M., Leiber, F. 2014. Relationship between stress-related exsanguination blood variables, vocalisation, and stressors imposed on cattle between lairage and stunning box under conventional abattoir conditions. Livestock Science 164:154-158.
  • Shang, Z.H., Gibb, M.J., Leiber, F., Ismail, M., Ding, L.M., Guo, X.S., Long, R.J. 2014. The sustainable development of grassland-livestock systems on the Tibetan plateau: problems, strategies and prospects. The Rangeland Journal 36:267-296.
  • Kälber, T., Kreuzer, M., Leiber, F. 2014. Milk fatty acid composition of dairy cows fed green whole-plant buckwheat, phacelia or chicory in their vegetative and reproductive stage. Animal Feed Science and Technology 193:71-83.
  • Willems, H., Kreuzer, M., Leiber, F. 2014. Alpha-linolenic and linoleic acid in meat and adipose tissue of grazing lambs differ among alpine pasture types with contrasting plant species and phenolic compound composition. Small Ruminant Research 116:153-164.
  • Kohler, M., Leiber, F., Willems, H., Merbold, L., Liesegang, A. 2013. Influence of altitude on vitamin D and bone metabolism of lactating sheep and goats. Journal of Animal Science 91:5259-5268.
  • Willems, H., Leiber, F., Kohler, M., Kreuzer, M., Liesegang, A. 2013. Altitude, pasture type and sheep breed affect bone metabolism and serum 25-hydroxyvitamin D in grazing lambs. Journal of Applied Physiology 114:1441-1450.
  • Liesegang, A., Hüttenmoser, D., Risteli, J., Leiber, F., Kreuzer, M., Wanner, M. 2013. Influence of high-altitude grazing on bone metabolism of growing sheep. Journal of Animal Physiology and Animal Nutrition 97:58-66.
  • Kälber, T., Kreuzer, M., Leiber, F. 2013. Effect of feeding buckwheat and chicory silages on fatty acid profile and cheese-making properties of milk from dairy cows. Journal of Dairy Research 80:81-88.
  • Staerfl, S.M., Zeitz, J.O., Amelchanka, S.L., Kälber, T., Kreuzer, M., Leiber, F. 2013. Comparison of the milk fatty acid composition from dairy cows fed high-sugar ryegrass, low-sugar ryegrass, or maize. Dairy Science & Technology 93:201-210.
  • Probst, J.K., Hillmann, E., Leiber, F., Kreuzer, M., Spengler Neff, A. 2013. Influence of gentle touching applied few weeks before slaughter on avoidance distance and slaughter stress in finishing cattle. Applied Animal Behaviour Science 144:14-21.
  • Willems, H., Werder, C., Kreuzer, M., Leiber, F. 2013. Das Weidesystem beeinflusst Schlachtleistung und Fleischqualität von gesömmerten Lämmern. Agrarforschung Schweiz 4:4-9.
  • Willems, H., Kreuzer, M., Leiber, F. 2013. Vegetation-type effects on performance and meat quality of growing Engadine and Valaisian Black Nose sheep grazing alpine pastures. Livestock Science 151:80-91.
  • Jayanegara, A., Marquardt, S., Wina, E., Kreuzer, M., Leiber, F. 2013. In vitro indications for favourable non-additive effects on ruminal methane mitigation between high phenolic and high quality forages. British Journal of Nutrition 109:615-622.
  • Jayanegara, A., Kreuzer, M., Leiber, F. 2012. Ruminal disappearance of polyunsaturated fatty acids and appearance of biohydrogenation intermediates when incubating linseed oil with alpine forage plant species in vitro. Livestock Science 147:104-112.
  • Probst, J.K., Spengler Neff, A., Leiber, F., Kreuzer, M., Hillmann, E. 2012. Gentle touching in early life reduces avoidance distance and slaughter stress in beef cattle. Applied Animal Behaviour Science 139:42-49.
  • Khiaosa-ard, R., Soliva, C.R., Kreuzer, M., Leiber, F., 2012. Effects of species-diverse alpine pasture forage on in vitro ruminal fermentation when used as donor cow’s feed or directly incubated. Animal 6:1764-1773.
  • Kälber T., Kreuzer, M., Leiber, F. 2012. Silages containing buckwheat and chicory: quality, digestibility and nitrogen utilisation by lactating cows. Archives of Animal Nutrition 66:50-65.
  • Richter E.K., Spangenberg, J.E., Willems, H., Kreuzer, M., Leiber, F. 2012. Stable carbon isotope composition of perirenal adipose tissue fatty acids from Engadine sheep grazing either mountain or lowland pasture. Journal of Animal Science 90:905-913.
  • Jayanegara, A., Leiber, F., Kreuzer, M. 2012. Meta-analysis of the relationship between dietary tannin level and methane formation in ruminants from in vivo and in vitro experiments. Journal of Animal Physiology and Animal Nutrition 96:365-375.
  • Richter, E.K., Spangenberg, J.E., Klevenhusen, F., Soliva, C.R., Kreuzer, M., Leiber, F. 2012. Stable carbon isotope composition of c9,t11-conjugated linoleic acid in cow’s milk and dietary fatty acids. Lipids. 47:161-169.
  • Leiber, F., Kunz, C., Kreuzer, M. 2012. Influence of different morphological parts of the buckwheat (Fagopyrum esculentum) herb and its major secondary metabolite rutin on rumen fermentation in vitro. Czech Journal of Animal Science 57:10-18.
  • Jayanegara, A., Wina, E., Kreuzer, M., Leiber, F. 2011. Significance of phenolic compounds in tropical forages for the ruminal bypass of polyunsaturated fatty acids and the appearance of biohydrogenation intermediates as determined in vitro. Animal Production Science. 51:1127-1136.
  • Holy, E.W., Forestier, M., Richter, E.K., Akhmedov, A., Leiber, F., Camici, G.G., Pavani, M., Lüscher, T.F., Beer, J.H., Tanner, F.C. 2011. Dietary Alpha-Linolenic Acid Inhibits Arterial Thrombus Formation, Platelet Activation, and Tissue Factor Expression. Arteriosclerosis, Thrombosis, and Vascular Biology. 31:1772-1780.
  • Staerfl, S.M., Soliva, C.R., Leiber, F., Kreuzer, M. 2011. Fatty acid profile and oxidative stability of the perirenal fat of bulls fattened on grass silage and maize silage supplemented with tannins, garlic, maca and lupines. Meat Science 89:98-104.
  • Jayanegara, A., Marquardt, S., Kreuzer, M., Leiber, F. 2011. Nutrient and energy content, in vitro ruminal fermentation characteristics and methanogenic potential of alpine forage plant species during early summer. Journal of the Science of Food and Agriculture 91:1863-1870.
  • Khiaosa-ard, R., Soliva, C.R., Kreuzer, M., Leiber, F. 2011. Influence of alpine forage either employed as donor cow’s feed or as incubation substrate on in vitro ruminal fatty acid biohydrogenation. Livestock Science. 140: 80-87.
  • Winnik, S., Lohmann, C., Richter, E.K., Schäfer, N., Song, W.L., Leiber, F., Mocharla, P., Hofmann, J., Klingenberg, R., Boren, J., Becher, B., FitzGerald, G.A., Lüscher, T.F., Matter, C.M., Beer, J.H. 2011. Dietary -linolenic acid diminishes experimental atherogenesis and restricts T cell-driven inflammation. European Heart Journal. 32: 2573-2584.
  • Leiber, F., Hochstrasser, R., Wettstein, H.-R., Kreuzer, M. 2011. Feeding transition cows with oilseeds: effects on fatty acid composition of adipose tissue, colostrum and milk. Livestock Science 138:1-12.
  • Jayanegara, A., Wina, E., Soliva, C.R., Marquardt, S., Kreuzer, M., Leiber, F. 2011. Dependence of forage quality and methanogenic potential of tropical plants on their phenolic fractions as determined by principal component analysis. Animal Feed Science and Technology 163:231-243.
  • Kälber, T., Meier, J.S., Kreuzer, M., Leiber, F. 2011. Flowering catch crops used as forage plants for dairy cows: Influence on fatty acids and tocopherols in milk. Journal of Dairy Science 94:1477-1489.
  • Khiaosa-ard, R., Leiber, F., Soliva, C.R. 2010. Methods of emulsifying linoleic acid in biohydrogenation studies in vitro may bias the resulting fatty acid profiles.  Lipids  45:651-657.
  • Richter, E.K., Spangenberg, J.E., Kreuzer, M., Leiber, F. 2010. Characterization of rapeseed (Brassica napus) oils by bulk C, O, H, and fatty acid C stable isotope analyses. Journal of Agricultural and Food Chemistry 58:8048-8055.
  • Khiaosa-ard, R., Klevenhusen, F., Soliva, C.R., Kreuzer, M., Leiber, F. 2010. Transfer of linoleic and linolenic acid from feed to milk in cows fed isoenergetic diets differing in proportion and origin of concentrates and roughages. Journal of Dairy Research 77:331-336.
  • Leiber, F., Tsvetkova, V., Petrova, I., Kreuzer, M., Scheeder, M.R.L. 2010. Two cases of grazing sheep with abundance of trans octadeca fatty acids in milk fat. Milchwissenschaft – Milk Science International 65:73-76.
  • Amelchanka, S.L., Kreuzer, M., Leiber, F. 2010. Utility of buckwheat (Fagopyrum esculentum Moench) as feed: effects of forage and grain on in vitro ruminal fermentation and performance of dairy cows. Animal Feed Science and Technology 155:111-121.
  • Leiber, F., Messikommer, R., Wenk, C. 2009. Buchweizen: Ein Futtermittel für Mastbroiler? Agrarforschung 16:448-453.
  • Santschi, D.E., Wettstein, H.-R., Leiber, F., Witschi, A.-K.M., Kreuzer, M. 2009. Colostrum and milk fatty acids of dairy cows as influenced by extruded linseed supplementation during the transition period. Canadian Journal of Animal Science 89:383-392.
  • Leiber, F., Wettstein, H.-R., Kreuzer, M. 2009. Is the intrinsic potassium content of forages an important factor in intake regulation of dairy cows? Journal of Animal Physiology and Animal Nutrition 93:391-399.
  • Leiber, F., Petrova, I., Tsetlpva, V.,Kreuzer, M., Angelow, L.  2009. Effect of trace element supplementation on the milk fatty acid composition in sheep grazing selenium- and iodine-deficient mountain pastures. Milchwissenschaft – Milk Science International 64:150-153.
  • Khiaosa-Ard, R., Bryner, S.F., Scheeder, M.R.L., Wettstein, H.-R., Leiber, F.,Kreuzer, M., Soliva, C.R. 2009. Evidence for the inhibition of the terminal step of ruminal α-linolenic acid biohydrogenation by condensed tannins. Journal of Dairy Science 92:177-188.
  • Leiber, F., Meier, J.S., Burger, B., Wettstein, H.-R., Kreuzer, M., Hatt, J.-M., Clauss, M. 2008. Significance of coprophagy for the fatty acid profile in body tissues of rabbits fed different diets. Lipids 43:853-865.
  • Leiber, F., Kreuzer, M., Leuenberger, H., Wettstein, H.-R. 2006. Contribution of diet type and pasture conditions to the influence of high altitude grazing on intake, performance and composition and renneting properties of the milk of cows. Animal Research 55:37-53.
  • Leiber, F., Nigg, D., Kunz, C., Scheeder, M.R.L., Wettstein H.-R.,  Kreuzer, M. 2005. Protein composition, plasmin activity and cheese-making properties of cow’s milk produced at two altitudes from hay of lowland and high alpine origin. Journal of Dairy Research 72:65-74.
  • Leiber, F., Kreuzer, Nigg, D., Wettstein, H.-R., Scheeder, M.R.L. 2005. A study on the causes for the elevated omega-3 fatty acids in cow's milk of alpine origin. Lipids 40:191-202.
  • Leiber, F., Kreuzer, M., Jörg, B., Leuenberger, H. Wettstein, H.-R. 2004. Contribution of altitude and alpine origin of forage to the influence of alpine sojourn of cows on intake, nitrogen conversion, metabolic stress and milk synthesis. Animal Science 78:351-366.
  • Leiber, F., Scheeder, M.R.L., Wettstein, H.-R., Kreuzer, M. 2004. Milk fatty acid profile of cows under the influence of alpine hypoxia and high mountainous forage quality. Journal of Animal and Feed Sciences 13 (Suppl.1):693-696.