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Current available strategies to mitigate greenhouse gas emissions in livestock systems: an animal welfare perspective

  • P. Llonch (a1), M. J. Haskell (a1), R. J. Dewhurst (a2) and S. P. Turner (a1)


Livestock production is a major contributor to greenhouse gas (GHG) emissions, so will play a significant role in the mitigation effort. Recent literature highlights different strategies to mitigate GHG emissions in the livestock sector. Animal welfare is a criterion of sustainability and any strategy designed to reduce the carbon footprint of livestock production should consider animal welfare amongst other sustainability metrics. We discuss and tabulate the likely relationships and trade-offs between the GHG mitigation potential of mitigation strategies and their welfare consequences, focusing on ruminant species and on cattle in particular. The major livestock GHG mitigation strategies were classified according to their mitigation approach as reducing total emissions (inhibiting methane production in the rumen), or reducing emissions intensity (Ei; reducing CH4 per output unit without directly targeting methanogenesis). Strategies classified as antimethanogenic included chemical inhibitors, electron acceptors (i.e. nitrates), ionophores (i.e. Monensin) and dietary lipids. Increasing diet digestibility, intensive housing, improving health and welfare, increasing reproductive efficiency and breeding for higher productivity were categorized as strategies that reduce Ei. Strategies that increase productivity are very promising ways to reduce the livestock carbon footprint, though in intensive systems this is likely to be achieved at the cost of welfare. Other strategies can effectively reduce GHG emissions whilst simultaneously improving animal welfare (e.g. feed supplementation or improving health). These win–win strategies should be strongly supported as they address both environmental and ethical sustainability. In order to identify the most cost-effective measures for improving environmental sustainability of livestock production, the consequences of current and future strategies for animal welfare must be scrutinized and contrasted against their effectiveness in mitigating climate change.


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Present address: School of Veterinary Science, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.



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The list of references used older than 2011 is given in Supplementary Material S1.
Abecia, L, Toral, PG, Martín-García, AI, Martínez, G, Tomkins, NW, Molina-Alcaide, E, Newbold, CJ and Yaňez-Ruiz, DR 2012. Effect of bromochloromethane on methane emission, rumen fermentation pattern, milk yield, and fatty acid profile in lactating dairy goats. Journal of Dairy Science 95, 20272036.
Appuhamy, RN, Strathe, AB, Jayasundara, S, Wagner-Riddle, C, Dijkstra, J, France, J and Kebreab, E 2013. Anti-methanogenic effects of monensin in dairy and beef cattle: a meta-analysis. Journal of Dairy Science 96, 51615173.
Beauchemin, KA, Janzen, HH, Little, SM, McAllister, TA and McGinn, SM 2011. Mitigation of greenhouse gas emissions from beef production in western Canada; evaluation using farm-based life cycle assessment. Animal Feed Science and Technology 166, 663677.
Bell, MJ, Wall, E, Simm, G and Russell, G 2011. Effects of genetic line and feeding system on methane emissions from dairy systems. Animal Feed Science and Technology 166, 699707.
Bellarby, J, Tirado, R, Leip, A, Weiss, F, Lesschen, JP and Smith, P 2013. Livestock greenhouse gas emissions and mitigation potential in Europe. Global Change Biology 19, 318.
Broom, DM, Galindo, FA and Murgueitio, E 2013. Sustainable, efficient livestock production with high biodiversity and good welfare for animals. Proceedings of the Royal Society B: Biological Sciences 280, 1771.
Bruijnis, MRN, Meijboom, FLB and Stassen, EN 2013. Longevity as an animal welfare issue applied to the case of foot disorders in dairy cattle. Journal of Agricultural and Environmental Ethics 26, 191205.
Buddle, BM, Denis, M, Attwood, GT, Altermann, E, Janssen, PH, Ronimus, RS, Pinares-Patiño, CS, Muetzel, S and Neil Wedlock, D 2011. Strategies to reduce methane emissions from farmed ruminants grazing on pasture. The Veterinary Journal 188, 1117.
Charlton, GL, Rutter, SM, East, M and Sinclair, LA 2011. Preference of dairy cows: indoor cubicle housing with access to a total mixed ration vs. access to pasture. Applied Animal Behaviour Science 130, 19.
Clonan, A, Wilson, P, Swift, JA, Leibovici, DG and Holdsworth, M 2015. Red and processed meat consumption and purchasing behaviours and attitudes: impacts for human health, animal welfare and environmental sustainability. Public Health Nutrition 18, 24462456.
Crosson, P, Shalloo, L, O’Brien, D, Lanigan, GJ, Foley, PA, Boland, TM and Kenny, DA 2011. A review of whole farm systems models of greenhouse gas emissions from beef and dairy cattle production systems. Animal Feed Science and Technology 166, 2945.
De Boer, IJM, Cederberg, C, Eady, S, Gollnow, S, Kristensen, T, Macleod, M, Meul, M, Nemecek, T, Phong, LT, Thoma, G, van der Werf, HMG, Williams, AG and Zonderland-Thomassen, MA 2011. Greenhouse gas mitigation in animal production: towards an integrated life cycle sustainability assessment. Current Opinion in Environmental Sustainability 3, 423431.
De Vries, M, Bokkers, EAM, Dijkstra, T, Van Schaik, G and De Boer, IJM 2011. Associations between variables of routine herd data and dairy cattle welfare. Journal of Dairy Science 94, 32133228.
Food and Agriculture Organisation (FAO) 2013. Mitigation of greenhouse gas emissions in livestock production. a review of technical options for non-CO2 emissions. FAO, Rome, Italy.
Fraser, D, Duncan, IJ, Edwards, SA, Grandin, T, Gregory, NG, Guyonnet, V, Hemsworth, PH, Huertas, SM, Huzzey, JM, Mellor, DJ, Mench, JA, Špinka, M and Whay, HR 2013. General principles for the welfare of animals in production systems: the underlying science and its application. The Veterinary Journal 198, 1927.
Gaddis, KP, Cole, JB, Clay, JS and Maltecca, C 2014. Genomic selection for producer-recorded health event data in US dairy cattle. Journal of Dairy Science 97, 31903199.
Gerber, PJ, Hristov, AN, Henderson, B, Makkar, H, Oh, J, Lee, C, Meinen, R, Montes, F, Ott, T, Firkins, J, Rotz, A, Dell, C, Adesogan, AT, Yang, WZ, Tricarico, JM, Kebreab, E, Waghorn, G, Dijkstra, J and Oosting, S 2013. Technical options for the mitigation of direct methane and nitrous oxide emissions from livestock: a review. Animal 7, 220234.
Gerber, PJ, Vellinga, T, Opio, C and Steinfeld, H 2011. Productivity gains and emissions intensity in dairy systems. Livestock Science 138, 100108.
Grainger, C and Beauchemin, KA 2011. Can enteric methane emissions from ruminants be lowered without lowering their production? Animal Feed Science and Technology 166–167, 308320.
Haisan, J, Sun, Y, Guan, LL, Beauchemin, KA, Iwaasa, A, Duval, S, Barreda, DR and Oba, M 2014. The effects of feeding 3-nitrooxypropanol on methane emissions and productivity of Holstein cows in mid lactation. Journal of Dairy Science 97, 31103119.
Hales, KE, Cole, NA and MacDonald, JC 2012. Effects of corn processing method and dietary inclusion of wet distillers grains with solubles on energy metabolism, carbon-nitrogen balance, and methane emissions of cattle. Journal of Animal Science 90, 31743185.
Hemsworth, PH and Coleman, GJ 2011. Human–livestock interactions. In The stockperson and the productivity and welfare of farmed animals (ed. PH Hemsworth and GJ Coleman), p 208. CABI, Wallingford, UK.
Hristov, AN, Oh, J, Firkins, JL, Dijkstra, J, Kebreab, E, Waghorn, G, Makkar, HPS, Adesogan, AT, Yang, W, Lee, C, Gerber, PJ, Henderson, B and Tricarico, JM 2013a. Mitigation of methane and nitrous oxide emissions from animal operations: I. A review of enteric methane mitigation options. Journal of Animal Science 91, 50455069.
Hristov, AN, Oh, J, Giallongo, F, Frederick, TW, Harper, MT, Weeks, HL, Branco, AF, Moate, PJ, Deighton, MH, Williams, SRO, Kindermann, M and Duval, S 2015. An inhibitor persistently decreased enteric methane emission from dairy cows with no negative effect on milk production. Proceedings of the National Academy of Sciences 112, 1066310668.
Hristov, AN, Ott, T, Tricarico, J, Rotz, A, Waghorn, G, Adesogan, A, Dijkstra, J, Montes, FR, Oh, J, Kebreab, E, Oosting, SJ, Gerber, PJ, Henderson, B, Makkar, HP and Firkins, JL 2013b. Mitigation of methane and nitrous oxide emissions from animal operations: III. A review of animal management mitigation options. Journal of Animal Science 91, 50955113.
Hulshof, RBA, Berndt, A, Gerrits, WJJ, Dijkstra, J, Van Zijderveld, SM, Newbold, JR and Perdok, HB 2012. Dietary nitrate supplementation reduces methane emission in beef cattle fed sugarcane-based diets. Journal of Animal Science 90, 23172323.
Kapell, DNRG, Hill, WG, Neeteson, AM, McAdam, J, Koerhuis, ANM and Avendaño, S 2012. Twenty-five years of selection for improved leg health in purebred broiler lines and underlying genetic parameters. Poultry Science 91, 30323043.
Knight, T, Ronimus, RS, Dey, D, Tootill, C, Naylor, G, Evans, P, Molano, G, Smith, A, Tavendale, M, Pinares-Patino, CS and Clark, H 2011. Chloroform decreases rumen methanogenesis and methanogen populations without altering rumen function in cattle. Animal Feed Science and Technology 166, 101112.
Lay, DC, Fulton, RM, Hester, PY, Karcher, DM, Kjaer, JB, Mench, JA, Mullens, BA, Newberry, RC, Nicol, CJ, O’Sullivan, NP and Porter, RE 2011. Hen welfare in different housing systems. Poultry Science 90, 278294.
Lee, C and Beauchemin, KA 2014. A review of feeding supplementary nitrate to ruminant animals: nitrate toxicity, methane emissions, and production performance. Canadian Journal of Animal Science 94, 557570.
Martinez-Fernandez, G, Arco, A, Abecia, L, Cantalapiedra-Hijar, G, Molina-Alcaide, E, Martin-Garcia, AI, Kindermann, M, Duval, S and Yanez-Ruiz, DR 2013. The addition of ethyl-3-nitrooxy propionate and 3-nitrooxypropanol in the diet of sheep sustainably reduces methane emissions and the effect persists over a month. Advances in Animal Biosciences 4, 368.
Mitsumori, M, Shinkai, T, Takenaka, A, Enishi, O, Higuchi, K, Kobayashi, Y, Nonaka, I, Asanuma, N, Denman, SE and McSweeney, CS 2012. Responses in digestion, rumen fermentation and microbial populations to inhibition of methane formation by a halogenated methane analogue. British Journal of Nutrition 108, 482491.
Moraes, LE, Strathe, AB, Fadel, JG, Casper, DP and Kebreab, E 2014. Prediction of enteric methane emissions from cattle. Global Change Biology 20, 21402148.
Nguyen, TTH, Doreau, M, Corson, MS, Eugène, M, Delaby, L, Chesneau, G, Gallard, Y and Van der Werf, HMG 2013. Effect of dairy production system, breed and co-product handling methods on environmental impacts at farm level. Journal of Environmental Management 120, 127137.
O’Mara, FP 2011. The significance of livestock as a contributor to global greenhouse gas emissions today and in the near future. Animal Feed Science and Technology 166, 715.
Organization International des Epizooties (OIE) 2012. Introduction to the recommendations for animal welfare. In Terrestrial Animal Health Code. Article 7.1.2, 21st edition (ed. World Organization for Animal Health, OIE), pp. 305. World Organisation for Animal Health (OIE), Paris, France.
Patra, AK 2012. Enteric methane mitigation technologies for ruminant livestock: a synthesis of current research and future directions. Environmental Monitoring and Assessment 184, 19291952.
Place, SE and Mitloehner, FM 2014. The nexus of environmental quality and livestock welfare. Annual Review of Animal Biosciences 2, 555569.
Pryce, JE, Wales, WJ, De Haas, Y, Veerkamp, RF and Hayes, BJ 2014. Genomic selection for feed efficiency in dairy cattle. Animal 8, 110.
Reynolds, CK, Humphries, DJ, Kirton, P, Kindermann, M, Duval, S and Steinberg, W 2014. Effects of 3-nitrooxypropanol on methane emission, digestion, and energy and nitrogen balance of lactating dairy cows. Journal of Dairy Science 97, 37773789.
Rowland, RR, Lunney, J and Dekkers, J 2012. Control of porcine reproductive and respiratory syndrome (PRRS) through genetic improvements in disease resistance and tolerance. Frontiers in Genetics 3, 260.
Rutherford, KMD, Baxter, EM, D’Eath, RB, Turner, SP, Arnott, G, Roehe, R, Ask, B, Sandøe, P, Moustsen, VA, Thorup, F, Edwards, SA, Berg, P and Lawrence, AB 2013. The welfare implications of large litter size in the domestic pig I: biological factors. Animal Welfare 22, 199218.
Sinderal, JJ and Milkowski, AL 2012. Human safety controversies surrounding nitrate and nitrite in the diet. Nitric Oxide 26, 259266.
Taylor, MA 2012. Emerging parasitic diseases of sheep. Veterinary Parasitology 189, 27.
Troy, SM, Duthie, CA, Hyslop, JJ, Roehe, R, Ross, DW, Wallace, RJ, Waterhouse, A and Rooke, JA 2015. Effectiveness of nitrate addition and increased oil content as methane mitigation strategies for beef cattle fed two contrasting basal diets. Journal of Animal Science 93, 18151823.
Tubiello, FN, Salvatore, M, Rossi, S, Ferrara, A, Fitton, N and Smith, P 2013. The FAOSTAT database of greenhouse gas emissions from agriculture. Environmental Research Letters 8, 015009.
Van Zijderveld, SM, Gerrits, WJJ, Dijkstra, J, Newbold, JR, Hulshof, RBA and Perdok, HB 2011. Persistency of methane mitigation by dietary nitrate supplementation in dairy cows. Journal of Dairy Science 94, 40284038.
Vermeer, HM, de Greef, KH and Houwers, HWJ 2014. Space allowance and pen size affect welfare indicators and performance of growing pigs under comfort class conditions. Livestock Science 159, 7986.
Waghorn, GC and Hegarty, RS 2011. Lowering ruminant methane emissions through improved feed conversion efficiency. Animal Feed Science and Technology 166, 291301.
Walsh, SW, Williams, EJ and Evans, ACO 2011. A review of the causes of poor fertility in high milk producing dairy cows. Animal Reproduction Science 123, 127138.
Weiss, F and Leip, A 2012. Greenhouse gas emissions from the EU livestock sector: a life cycle assessment carried out with the CAPRI model. Agriculture, Ecosystems & Environment 149, 124134.
Yang, C, Rooke, JA, Cabeza, I and Wallace, RJ 2016. Nitrate and inhibition of ruminal methanogenesis: microbial ecology, obstacles, and opportunities for lowering methane emissions from ruminant livestock. Frontiers in Microbiology 7, 132.
Zervas, G and Tsiplakou, E 2012. An assessment of GHG emissions from small ruminants in comparison with GHG emissions from large ruminants and monogastric livestock. Atmospheric Environment 49, 1323.


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Llonch supplementary material S1

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