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Agriculture  2013 

Reduction in Greenhouse Gas Emissions Associated with Worm Control in Lambs

DOI: 10.3390/agriculture3020271

Keywords: greenhouse gas emissions, sustainable parasite control, targeted selective treatment, carbon footprint, livestock, anthelmintic

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There are currently little or no data on the role of endemic disease control in reducing greenhouse gas (GHG) emissions from livestock. In the present study, we have used an Intergovernmental Panel on Climate Change (IPCC)-compliant model to calculate GHG emissions from naturally grazing lambs under four different anthelmintic drug treatment regimes over a 5-year study period. Treatments were either “monthly” (NST), “strategic” (SPT), “targeted” (TST) or based on “clinical signs” (MT). Commercial sheep farming practices were simulated, with lambs reaching a pre-selected target market weight (38 kg) removed from the analysis as they would no longer contribute to the GHG budget of the flock. Results showed there was a significant treatment effect over all years, with lambs in the MT group consistently taking longer to reach market weight, and an extra 10% emission of CO 2e per kg of weight gain over the other treatments. There were no significant differences between the other three treatment strategies (NST, SPT and TST) in terms of production efficiency or cumulated GHG emissions over the experimental period. This study has shown that endemic disease control can contribute to a reduction in GHG emissions from animal agriculture and help reduce the carbon footprint of livestock farming.


[1]  UK Government Climate Change Act 2008. Available online: www.legislation.gov.uk/ukpga/2008/27/contents (accessed on 22 November 2012).
[2]  Steinfeld, H.; Gerber, P.; Wassenaar, T.; Castel, V.; Rosales, M.; de Haan, C. Livestock’s Long Shadow: Environmental Issues and Options; Report presented to the Food and Agricultural Organisation (FAO) of the United Nations (UN): Rome, Italy, 2006; pp. 1–284.
[3]  MacCarthy, J.; Brown, K.; Webb, N.; Passant, N.; Thistlethwaite, G.; Murrells, T.; Watterson, J.; Cardenas, L.; Thomson, A.; Pang, Y. UK Greenhouse Gas Inventory, 1990 to 2009. Annual Report for Submission under the Framework Convention on Climate Change; AEA Technology: Didcot, UK, 2011; pp. 16–28. Available online: http://unfccc.int/national_reports/annex_i_ghg_inventories/national_inventories_submissions/items/5888.php (accessed on 20 May 2012).
[4]  Gill, M.; Smith, P.; Wilkinson, J.M. Mitigating climate change: The role of domestic livestock. Animal 2009, 4, 323–333.
[5]  IPCC. 2006 IPCC Guidelines for National Greenhouse Gas Inventories; Eggleston, H.S., Buendia, L., Miwa, K., Ngara, T., Tanabe, K., Eds.; National Greenhouse Gas Inventories Programme, Institute for Global Environmental Strategies (IGES): Hayama, Japan, 2006.
[6]  Smith, P. Agricultural greenhouse gas mitigation potential globally, in Europe and in the UK: What have we learnt in the last 20 years? Glob. Change Biol. 2012, 18, 35–43, doi:10.1111/j.1365-2486.2011.02517.x.
[7]  Foresight. The Future of Food and Farming. Final Project Report; The Government Office for Science: London, UK, 2011; pp. 1–211.
[8]  Thornton, P.K. Livestock production: Recent trends, future prospects. Phil. Trans. R. Soc. Biol. Sci. 2010, 365, 2853–2867, doi:10.1098/rstb.2010.0134.
[9]  Alcock, D.J.; Hegarty, R.S. Potential effects of animal management and genetic improvement on enteric methane emissions, emissions intensity and productivity of sheep enterprises at Cowra, Australia. Anim. Feed Sci. Technol. 2011, 166–167, 749–760, doi:10.1016/j.anifeedsci.2011.04.053.
[10]  Rasmussen, J.; Harrison, A. The benefits of supplementary fat in feed rations for ruminants with particular focus on reducing levels of methane production. Vet Sci. 2011, doi:10.5402/2011/613172.
[11]  Pinares-Pati?o, C.S.; McEwan, J.C.; Dodds, K.G.; Cárdenas, E.A.; Hegarty, R.S.; Koolaard, J.P.; Clark, H. Repeatability of methane emissions from sheep. Anim. Feed Sci. Technol. 2011, 166–167, 210–218.
[12]  The BVD Scotland Order. Available online: www.scotland.gov.uk/Publications/2011/01/17111217/9 (accessed on 22 November 2012).
[13]  Survey to determine the prevalence of infection with BVD virus in suckler and dairy herds in Northern Ireland. Available online: www.agrisearch.org/beef/ongoing-beef/animal-health-and-welfare-beef/74 (accessed on 22 November 2012).
[14]  Charlier, J.; Van der Voort, M.; Hogeveen, H.; Vercruysse, J. ParaCalc?—A novel tool to evaluate the economic importance of worm infections on the dairy farm. Vet Parasitol. 2012, 184, 204–211, doi:10.1016/j.vetpar.2011.09.008.
[15]  Nieuwhof, G.J.; Bishop, S.C. Costs of the major endemic diseases of sheep in Great Britain and the potential benefits of reduction in disease impact. Anim. Sci. 2005, 81, 23–29.
[16]  Greer, A.W.; Kenyon, F.; Bartley, D.J.; Jackson, E.B.; Gordon, Y.; Donnan, A.A.; McBean, D.W.; Jackson, F. Development and field evaluation of a decision support model for anthelmintic treatments as part of a targeted selective treatment (TST) regime in lambs. Vet. Parasitol. 2009, 164, 12–20, doi:10.1016/j.vetpar.2009.04.017.
[17]  Kaplan, R.M.; Vidyashankar, A.M. An inconvenient truth: Global worming and anthelmintic resistance. Vet. Parasitol. 2012, 186, 70–78, doi:10.1016/j.vetpar.2011.11.048.
[18]  Van Wyk, J.A.; Hoste, H.; Kaplan, R.M.; Besier, R.B. Targeted selective treatment for worm management—How do we sell rational programmes to farmers? Vet. Parasitol. 2006, 139, 336–346, doi:10.1016/j.vetpar.2006.04.023.
[19]  Kenyon, F.; McBean, D.; Greer, A.W.; Burgess, C.G.S.; Morrison, A.A.; Bartley, D.; Bartley, Y.; Devin, L.; Nath, M.; Jackson, F. A comparative study of the effects of four treatment regimes on ivermectin efficacy, body weight and pasture contamination in lambs naturally infected with gastrointestinal nematodes in Scotland. Int. J. Parasitol. Drugs Drug Resist. Available online: http://dx.doi.org/10.1016/j.ijpddr.2013.02.001 (accessed on 21 February 2013).
[20]  Planned Carcase Production for the Scottish Sheep Industry. Quality Meat Scotland (QMS): Edinburgh, UK, 2007; pp. 1–12. Available online: www.scottishsheepstrategy.org.uk/sitev2/pdfs/ccase.pdf (accessed on 12 December 2012).
[21]  Norse, D.; Tschirley, J.B. Links between science and policy making. Agric. Ecosyst. Environ. 2000, 82, 15–16, doi:10.1016/S0167-8809(00)00213-9.
[22]  Testing the Water. The English Beef and Sheep Production Roadmap—Phase 2; English Beef and Lamb Executive (EBLEX): Kenilworth, UK, 2010; pp. 1–48. Available online: www.eblex.org.uk/documents/content/news/p_cp_testingthewater061210.pdf (accessed on 12 December 2012).
[23]  Down to Earth. The English Beef and Sheep Production Roadmap—Phase 3; English Beef and Lamb Executive (EBLEX): Kenilworth, UK, 2012; pp. 1–44. Available online: www.eblex.org.uk/documents/content/publications/p_cp_down_to_earth300112.pdf (accessed on 12 December 2012).
[24]  Casey, J.W.; Holden, J.M. Analysis of greenhouse gas emissions from the average Irish milk production system. Agric. Syst. 2005, 86, 97–114, doi:10.1016/j.agsy.2004.09.006.
[25]  Rees, R.M.; Topps, C.F.E.; McGovern, R.; Dick, J.M.; Smith, R.; Coulter, A.G. Managing carbon in a Scottish farmland. In Land Management in a Changing Environment; Scottish Agricultural College (SAC): Edinburgh, UK, 2008; pp. 76–83.
[26]  Booth, J. Green Farm Pilot Project. Project Report; Prepared by SAOS Ltd. Grantown-on-Spey, Cairngorm National Park Authority: Aberdeen, UK, 2008; pp. 1–12.
[27]  Lombard, J.E. Epidemiology and economics of paratuberculosis. Vet. Clin. North Am. Food Anim. Pract. 2011, 27, 525–535, doi:10.1016/j.cvfa.2011.07.012.
[28]  Schweizer, G.; Braun, U.; Deplazes, P.; Torgerson, P. Estimating the financial losses due to bovine fasciolosis in Switzerland. Vet. Record 2005, 157, 188–193.
[29]  Bar, D.; Tauer, L.W.; Bennett, G.; Gonzalez, R.N.; Hertl, J.A.; Schukken, Y.H.; Schulte, H.F.; Welcome, F.L.; Grohn, Y.T. The cost of generic clinical mastitis in dairy cows as estimated by using dynamic programming. J. Dairy Sci. 2008, 91, 2205–2214, doi:10.3168/jds.2007-0573.
[30]  Milne, C.E.; Gunn, G.J.; Entrican, G.; Longbottom, D. Epidemiological modelling of chlamydial abortion in sheep flocks. Vet. Micro. 2009, 135, 128–133, doi:10.1016/j.vetmic.2008.09.032.
[31]  Dubey, J.P.; Schares, G. Neosporosis in animals—The last five years. Vet. Parasitol. 2011, 180, 90–108, doi:10.1016/j.vetpar.2011.05.031.
[32]  Heikkila, A.M.; Nousiainen, J.L.; Pyorala, S. Costs of clinical mastitis with special reference to premature culling. J. Dairy Sci. 2012, 95, 139–150, doi:10.3168/jds.2011-4321.


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