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PERSPECTIVES ON ANIMAL BIOSCIENCES (Open Access)

Animal welfare and efficient farming: is conflict inevitable?

Marian Stamp Dawkins
+ Author Affiliations
- Author Affiliations

Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, UK. Email: marian.dawkins@zoo.ox.ac.uk

Animal Production Science 57(2) 201-208 https://doi.org/10.1071/AN15383
Submitted: 15 July 2015  Accepted: 18 January 2016   Published: 2 June 2016

Journal Compilation © CSIRO Publishing 2017 Open Access CC BY-NC-ND

Abstract

The potential conflicts between animal welfare and efficient farming can often be resolved or at least reduced by showing the financial benefits that improving animal welfare can bring to both society and individual farmers. These benefits include increased profits through: (i) reduced mortality; (ii) improved health; (iii) improved product quality; (iv) improved disease resistance and reduced medication; (v) lower risk of zoonoses and foodborne diseases; (vi) farmer job satisfaction and contributions to Corporate Social Responsibility; and (vii) the ability to command higher prices from consumers. Current conflicts between animal welfare and production may be resolved by future developments in genetics, management practices and new technology. Financial benefits reinforce, rather than replace, ethical arguments for good animal welfare.

Additional keywords: agribusiness, economics.


References

Aaslyng MD, Barton Gade P (2001) Low stress pre-slaughter handling: effect of lairage time and the quality of pork. Meat Science 57, 87–92.
Low stress pre-slaughter handling: effect of lairage time and the quality of pork.Crossref | GoogleScholarGoogle Scholar |

Aguayo-Ulloa LA, Miranda-de la Lama GC, Pascual-Alsonso M, Olleta JL, Villarroel M, Sanudo C, Maria GA (2014) Effect of enriched housing on welfare, production performance and meat quality in finishing lambs: the use of feeder ramps. Meat Science 97, 42–48.
Effect of enriched housing on welfare, production performance and meat quality in finishing lambs: the use of feeder ramps.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC2cvhtVGhtw%3D%3D&md5=dbd330814a7e36393359460557ff9e50CAS | 24486685PubMed |

Arlinghaus R, Schwab A, Cooke SJ, Cowx IG (2009) Contrasting pragmatic and suffering-centred approaches to fish welfare on recreational angling. Journal of Fish Biology 75, 2448–2463.
Contrasting pragmatic and suffering-centred approaches to fish welfare on recreational angling.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC3cjnsVOquw%3D%3D&md5=6cf2d79227f0ecd0f03ac57a98293212CAS | 20738501PubMed |

Balmford A (2012) ‘Wild hope: on the front lines of conservation success.’ (The University of Chicago Press: London and Chicago, IL)

Balmford A, Bruner A, Cooper P, Costanza R, Farber S, Green RE, Jenkins M, Jefferiss P, Jessamy V, Madden J, Munro K, Myers N, Naeemo S, Paavola J, Rayment M, Rosendo S, Roughgarden J, Trumper K, Turner RK (2002) Economic reasons for conserving wild nature. Science 297, 950–953.
Economic reasons for conserving wild nature.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD38Xmt1Clsb4%3D&md5=26296925eaa5a8f9bc8a4544705cb69cCAS | 12169718PubMed |

Barnett JL, Hemsworth PH (2001) A review of the welfare issues for sows and piglets in relation to housing. Australian Journal of Agricultural Research 52, 1–28.
A review of the welfare issues for sows and piglets in relation to housing.Crossref | GoogleScholarGoogle Scholar |

Barton Gade P (2004) Pre-slaughter handling. In ‘Encyclopedia of meat sciences’. (Ed. W Klinth Jensen) pp. 1012–1020. (Elsevier: Oxford)

Beach RH, Poules C, Pattandyak SK (2007) Farm economics of bird flu. Canadian Journal of Agricultural Economics 55, 471–483.
Farm economics of bird flu.Crossref | GoogleScholarGoogle Scholar |

Bennett R, Thompson P (2011) Economics. In ‘Animal welfare’. 2nd edn. (Eds M Appleby, J Mench, I Olsson, BO Hughes) pp. 279–303. (CABI: Wallingford)

Berckmans D (2014) Precision livestock farming technologies for welfare management in intensive livestock systems. Revue Scientifique-Office International des Epizooties 33, 189–196.
Precision livestock farming technologies for welfare management in intensive livestock systems.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC2cbgt1Sltw%3D%3D&md5=a8d463d99e91fc2a9f5d671b20297fd9CAS |

Bessei W (2006) Welfare of broilers: a review. World’s Poultry Science Journal 62, 455–466.
Welfare of broilers: a review.Crossref | GoogleScholarGoogle Scholar |

Bocquier F, Debus N, Lurette A (2014) Precision farming in extensive livestock systems. Productions Animales 27, 101–111.

Bracke MBM, Hopster H (2006) Assessing the importance of natural behaviour for animal welfare. Journal of Agricultural & Environmental Ethics 19, 77–89.
Assessing the importance of natural behaviour for animal welfare.Crossref | GoogleScholarGoogle Scholar |

Brammer SJ, Pavelin B (2006) Corporate reputation and social performance: the importance of fit. Journal of Management Studies 43, 435–455.
Corporate reputation and social performance: the importance of fit.Crossref | GoogleScholarGoogle Scholar |

Broom DM (1991) Animal welfare – concepts and measurement. Journal of Animal Science 69, 4167–4175.

Broom DM (2000) Welfare assessment and welfare problem areas during handling and transport. In ‘Livestock handling and transport’. (Ed. T Grandin) pp. 43–61. (CABI: Wallingford)

Broom DM (2010) Animal welfare: an aspect of care sustainability and food quality required by the public. Journal of Veterinary Medical Education 37, 83–88.
Animal welfare: an aspect of care sustainability and food quality required by the public.Crossref | GoogleScholarGoogle Scholar | 20378884PubMed |

Bruijnis MRN, Hogeveen H, Stassen EN (2010) Assessing economic consequences of foot disorders in cattle using a dynamic stochastic simulation. Journal of Dairy Science 93, 2419–2432.
Assessing economic consequences of foot disorders in cattle using a dynamic stochastic simulation.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3cXhtVahs7vP&md5=5060d40dc64d6799a16e1d0958311de2CAS |

Bruijnis MRN, Hogeveen H, Stassen EN (2013) Measures to improve dairy cow foot health: consequences for farmer income and dairy cow welfare. Animal 7, 167–175.
Measures to improve dairy cow foot health: consequences for farmer income and dairy cow welfare.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC3s%2FitVGjuw%3D%3D&md5=d2874e6f9d3da4ac1865dd222aa7ccddCAS |

Chapinal N, Sewalem A, Miglior F (2012) Short communication: estimation of genetic parameters for gait in Canadian Holstein cows. Journal of Dairy Science 95, 7372–7376.
Short communication: estimation of genetic parameters for gait in Canadian Holstein cows.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38Xhs12gurvE&md5=f53d2be5ad3de7a36112cac5d7018a06CAS | 23063149PubMed |

Christensen T, Lawrence A, Lund M, Stott A, Sandøe P (2012) How can economists help to improve animal welfare? Animal Welfare (South Mimms, England) 21, 1–10.
How can economists help to improve animal welfare?Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38Xnt1GmsbY%3D&md5=f35ab9e3348cc6f8f7b9822fd33dffabCAS |

Colles FM, Cain RJ, Nickson T, Smith A, Roberts SJ, Maiden MCJ, Lunn D, Dawkins MS (2016) Monitoring chicken flock behaviour provides early warning of infection by human pathogen Campylobacter. Proceedings of the Royal Society B. 283, 20152323

Costanza R, d’Arge R, de Groot R, Farber S, Grasse M, Hannen B, Limburg K, Naeem S, O’Neill RV, Paruelo J, Raskin RG, Sutton P, van den Belt M (1997) The value of the world’s ecosystem services and natural capital. Nature 387, 253–260.
The value of the world’s ecosystem services and natural capital.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK2sXjtlShtbs%3D&md5=e6cdf1a6751448b0a486d6f29679ccd8CAS |

Dawkins MS (2008) The science of animal suffering. Ethology 114, 937–945.
The science of animal suffering.Crossref | GoogleScholarGoogle Scholar |

Dawkins MS (2012) ‘Why animals matter: animal welfare, animal consciousness and human well-being.’ (Oxford University Press: Oxford)

Dawkins MS, Layton R (2012) Breeding for better welfare: genetic goals for broiler chickens and their parents. Animal Welfare (South Mimms, England) 21, 147–155.
Breeding for better welfare: genetic goals for broiler chickens and their parents.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38Xnt1Gmurw%3D&md5=a7f0d0374d7b2c99896e4f05fa194095CAS |

Dawkins MS, Donnelly CA, Jones TA (2004) Chicken welfare is influenced more by housing conditions than by stocking density. Nature 427, 342–344.
Chicken welfare is influenced more by housing conditions than by stocking density.Crossref | GoogleScholarGoogle Scholar | 14737165PubMed |

Dawkins MS, Cain R, Roberts SJ (2012) Optical flow, flock behaviour and chicken welfare. Animal Behaviour 84, 219–223.
Optical flow, flock behaviour and chicken welfare.Crossref | GoogleScholarGoogle Scholar |

de Passillé AM, Rushen J (2005) Food safety and environmental issues and animal welfare. Revue Scientifique and Technique-Office International des Epizooties 24, 757–766.
Food safety and environmental issues and animal welfare.Crossref | GoogleScholarGoogle Scholar |

Dokmanović M, Velarde A, Tomovic V, Glamočlija N, Marković R, Janjić J, Baltić MŽ (2014) The effect of lairage time and handling procedure prior to slaughter on stress and meat quality parameters in pigs. Meat Science 98, 220–226.
The effect of lairage time and handling procedure prior to slaughter on stress and meat quality parameters in pigs.Crossref | GoogleScholarGoogle Scholar | 24971810PubMed |

Earley B (2006) The effect of transport by road and sea on physiology, immunity, and behaviour of beef cattle. Journal of Animal Science 84, 272

Ellen ED, Rodenburg T, Bas A, Gerard AA, Bolhuis JE, Camerlink I, Duijvesteijn N, Knols EF, Muir WM, Peeters K, Reimert I, Sell-Kubiak E, van Arendonk JAM, Visscher J, Bijma P (2014) The prospects of selection for social genetic effects to improve welfare and productivity in livestock. Frontiers in Genetics 5, 377
The prospects of selection for social genetic effects to improve welfare and productivity in livestock.Crossref | GoogleScholarGoogle Scholar | 25426136PubMed |

Engel S, Pagiola S, Wunder S (2008) Designing payments for environmental services in theory and practice: an overview of the issues. Ecological Economics 65, 663–674.
Designing payments for environmental services in theory and practice: an overview of the issues.Crossref | GoogleScholarGoogle Scholar |

Estevez I (2007) Density allowances for broilers: where to set the limits? Poultry Science 86, 1265–1272.
Density allowances for broilers: where to set the limits?Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD2s3os1aqsQ%3D%3D&md5=b01b950ad7de8c8a26733c3311262ef0CAS | 17495104PubMed |

European Food Standards Agency (EFSA) 2005 The welfare of weaners and rearing pigs: effects of different space allowances and floor types. EFSA-Q-2004–077. Annex EFSA 268 1 19

Fraser D, Duncan IJH, Edwards SA, Grandin T, Gregory NG, Guyonnet V, Hemsworth PH, Huertas SM, Huzzey JM, Mellor DJ, Mench JA, Spinka M, Whay HR (2013) General principles for the welfare of animals in production systems: the underlying science and its application. Veterinary Journal (London, England) 198, 19–27.
General principles for the welfare of animals in production systems: the underlying science and its application.Crossref | GoogleScholarGoogle Scholar |

Garnett T, Appleby MC, Balmford A, Bateman IJ, Benton TG, Bloomers P, Burlingame M, Dawkins M, Dolan L, Fraser D, Herrero M, Hoffman I, Smith P, Thornton PK, Toulmin C, Vermeulen SJ, Godfray HCJ (2013) Sustainable intensification in agriculture: premises and policies. Science 341, 33–34.
Sustainable intensification in agriculture: premises and policies.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3sXhtFSrsb3M&md5=53f1857ea1137eaf73e0fb714fc1647fCAS | 23828927PubMed |

Ghareeb K, Awad WA, Mohnl M, Schatzmayr G, Bohm J (2013) Control strategies for Campylobacter infection in poultry production. World’s Poultry Science Journal 69, 57–76.
Control strategies for Campylobacter infection in poultry production.Crossref | GoogleScholarGoogle Scholar |

Godfray HCJ, Beddington JR, Crute IR, Haddad L, Lawrence D, Muir JF, Pretty J, Robinson S, Thomas SM, Tiulmin C (2010) Food security: the challenge of feeding 9 billion people. Science 327, 812–818.
Food security: the challenge of feeding 9 billion people.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3cXhslWisLo%3D&md5=00a24be529350f744921a2e81036a1d2CAS |

Grace D (2014) The business case for One Health. The Onderstepoort Journal of Veterinary Research 81, 1–6.
The business case for One Health.Crossref | GoogleScholarGoogle Scholar |

Grams V, Böegelein S, Grashorn MA, Bessei W, Bennewitz J (2015) Quantitative genetic analysis of traits related to fear and feather pecking in laying hens. Behavior Genetics 45, 228–235.
Quantitative genetic analysis of traits related to fear and feather pecking in laying hens.Crossref | GoogleScholarGoogle Scholar | 25491395PubMed |

Grandin T (1997) Assessing of stress during handling and transport. Journal of Animal Science 75, 249–257.

Grandin T (2012) Developing measures to audit welfare of cattle and pigs at slaughter. Animal Welfare (South Mimms, England) 21, 351–356.
Developing measures to audit welfare of cattle and pigs at slaughter.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38XhtFOntL%2FM&md5=c15a58b6cd7ef1bd12b139c013c02e6eCAS |

Grandin T, Deesing MJ (2014) ‘Genetics and the behavior of domestic animals.’ 2nd edn. (Academic Press: New York)

Green LE, Kaier J, Wassink GJ, King EM, Grogono TR (2012) Impact of rapid treatment of sheep lame with footroot on welfare and economics and farmer attitudes to lameness in sheep. Animal Welfare (South Mimms, England) 21, 65–71.
Impact of rapid treatment of sheep lame with footroot on welfare and economics and farmer attitudes to lameness in sheep.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38Xnt1Gmt7w%3D&md5=0160ee7f07acf09ad01c7fc3b94bdc62CAS |

Guy JH, Cain PJ, Seddon YM, Baxter EM, Edwards SA (2012) Economic evaluation of high welfare indoor farrowing systems for pigs. Animal Welfare (South Mimms, England) 21, 19–24.
Economic evaluation of high welfare indoor farrowing systems for pigs.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38Xnt1Gmtr8%3D&md5=c53be055a27be679288ef1c011f4efd9CAS |

Harley S, Boyle LA, O’Connell NE, More SJ, Teixeira DL, Hanlon A (2014) Docking the value of pig meat? Prevalence and financial implications of welfare lesions in Irish slaughter pigs. Animal Welfare (South Mimms, England) 23, 275–285.
Docking the value of pig meat? Prevalence and financial implications of welfare lesions in Irish slaughter pigs.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC2cXhtlWlsLnJ&md5=a2201584f3eb20ce2659320f7e3ce930CAS |

Hemsworth PH, Coleman GJ (2011) ‘Human livestock: the stockperson and the productivity and welfare of intensively farmed animals.’ (CABI: Wallingford)

Hemsworth PH, Barnett J, Coleman G (2009) The integration of human-animal relations into animal welfare monitoring schemes. Animal Welfare (South Mimms, England) 18, 335–345.

Hoerr FJ (2010) Clinical aspects of immunosuppression in poultry. Avian Diseases 54, 2–15.
Clinical aspects of immunosuppression in poultry.Crossref | GoogleScholarGoogle Scholar | 20408392PubMed |

Humphrey T (2006) Are happy chickens safer chickens? Poultry welfare and disease susceptibility. British Poultry Science 47, 379–391.
Are happy chickens safer chickens? Poultry welfare and disease susceptibility.Crossref | GoogleScholarGoogle Scholar | 16905463PubMed |

Ingemann R, Sandøe P, Enemark P, Forkman B (2008) Conflicting goals of welfare assessment schemes: a case study. Animal Welfare (South Mimms, England) 18, 487–495.

Ingvartsen KL, Moyes K (2013) Nutrition, immune function and health of dairy cattle. Animal 7, 112–122.
Nutrition, immune function and health of dairy cattle.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3sXjsFeisbY%3D&md5=6be3f89252140e16c568630e3cf8513bCAS | 23031687PubMed |

Jensen T, Nielsen CK, Vinther J, D’Eath R (2012) The effect of space allowance for finishing pigs on productivity and pen hygiene. Livestock Science 149, 33–40.
The effect of space allowance for finishing pigs on productivity and pen hygiene.Crossref | GoogleScholarGoogle Scholar |

Johnston CE, Hartley C, Salisbury AM, Wigley P (2012) Immunological changes at point-of-lay increase susceptibility to Salmonella enterica serovar Enteriditia infection in vaccinated chickens. PLOS One e48195
Immunological changes at point-of-lay increase susceptibility to Salmonella enterica serovar Enteriditia infection in vaccinated chickens.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38Xhs1OisL%2FL&md5=dd6399ecee8e52136b2887247b6e4b6dCAS | 23133568PubMed |

Klasing KC (2007) Nutrition and the immune system. British Poultry Science 48, 525–537.
Nutrition and the immune system.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXhtFyrurrK&md5=697ed9fa990148a563e312928d59ec2cCAS | 17952723PubMed |

Klein AM, Vaissière BE, Cane JH, Steffan-Dewenter I, Cunningham SA, Kremen C, Tscharntke T (2007) Importance of pollinator in changing landscape for world crops. Proceedings. Biological Sciences 274, 303–313.
Importance of pollinator in changing landscape for world crops.Crossref | GoogleScholarGoogle Scholar |

Lawrence AB, Conington J, Simm G (2004) Breeding and animal welfare: practical and theoretical advantages of multi-trait selection. Animal Welfare (South Mimms, England) 13, S191–S196.

Le Maitre DC, van Wilgen W, Gelderblom CM, Bailey C, Chapman RA, Nel JA (2002) Invasive alien trees and water resources in South Africa: case studies of the costs and benefits of management. Forest Ecology and Management 160, 143–159.
Invasive alien trees and water resources in South Africa: case studies of the costs and benefits of management.Crossref | GoogleScholarGoogle Scholar |

Little JM, Berrens R (2004) Explaining disparities between actual and stated values: further investigation using meta-analysis. Economic Bulletin 3, 1–12.

Markandya A, Taylor T, Longo A (2008) Counting the cost of vulture decline – an appraisal of the human health and other benefits of vultures in India. Ecological Economics 67, 194–204.
Counting the cost of vulture decline – an appraisal of the human health and other benefits of vultures in India.Crossref | GoogleScholarGoogle Scholar |

Martelli G (2009) Consumers’ perception of farm animal welfare: an Italian and European perspective. Italian Journal of Animal Science 8, 31–41.
Consumers’ perception of farm animal welfare: an Italian and European perspective.Crossref | GoogleScholarGoogle Scholar |

Mellor DJ, Stafford KJ (2004) Animal welfare implications of neonatal mortality and morbidity in farm animals. Veterinary Journal (London, England) 168, 118–133.
Animal welfare implications of neonatal mortality and morbidity in farm animals.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD2czpvFWntQ%3D%3D&md5=838374ba13f57b04411b8e4349087b70CAS |

Mench JA (2002) Broiler breeders: feed restriction and welfare. World’s Poultry Science Journal 58, 23–29.
Broiler breeders: feed restriction and welfare.Crossref | GoogleScholarGoogle Scholar |

Monath TP, Kahn LH, Kaplan B (2010) Introduction: one health perspective. ILAR Journal 51, 193–198.
Introduction: one health perspective.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3cXhtVCkurbI&md5=64f5fe3e19cf84864359225e0caf088bCAS | 21131719PubMed |

Natural Capital Committee Report (2013) The state of natural capital: towards a framework for measurement and valuation. Available at http://webarchive.nationalarchives.gov.uk/20130822084033/http://www. defra.gov.uk/naturalcapitalcommittee/files/State-of-Natural-Capital-Report- 2013.pdf [Verified 4 May 2016]

O’Neill J (2015) Chairman. Review on antimicrobial resistance. Wellcome Trust. Available at http://amr-review.org/Publications [Verified 9 December 2015]

Oltenacu PA, Algers B (2005) Selection for increased production and the welfare of dairy cows: are new breeding goals needed? Ambio 34, 311–315.
Selection for increased production and the welfare of dairy cows: are new breeding goals needed?Crossref | GoogleScholarGoogle Scholar | 16092261PubMed |

Platts-Mills JA, Kosek M (2014) Update on the burden of Campylobacter in developing countries. Current Opinion in Infectious Diseases 27, 444–450.
Update on the burden of Campylobacter in developing countries.Crossref | GoogleScholarGoogle Scholar | 25023741PubMed |

Rauw WM, Kanis E, Noordhuizen-Stassen EN, Grommers FJ (1998) Undesirable side effects of selection for high production efficiency in farm animals: a review. Livestock Production Science 56, 15–33.
Undesirable side effects of selection for high production efficiency in farm animals: a review.Crossref | GoogleScholarGoogle Scholar |

Ringø E, Olsen R, Jensen I, Romero J, Lauzon HL (2014) Application of vaccines and dietary supplements in aquaculture: possibilities and challenges. Reviews in Fish Biology and Fisheries 24, 1005–1032.
Application of vaccines and dietary supplements in aquaculture: possibilities and challenges.Crossref | GoogleScholarGoogle Scholar |

Rodenburg TB, van Krimpen MM, de Jong IC, De Haas EN, Kops MS, Riedstra BJ, Nordquist RE, Wagenaar JP, Bestman M, Nicol CJ (2013) The prevention and control of feather pecking in laying hens: identifying the underlying principles. World’s Poultry Science Journal 69, 361–374.
The prevention and control of feather pecking in laying hens: identifying the underlying principles.Crossref | GoogleScholarGoogle Scholar |

Rutter S (2012) A ‘smart’ future for ruminant livestock production. Cattle Practitioner 20, 186–193.

Sapolsky RM (1994) ‘Why zebras don’t get ulcers: a guide to stress-related diseases, and coping.’ (W.H. Freeman and Co.: New York)

Segerstrom SC, Miller GE (2004) Psychological stress and the human immune system a meta-analytic study of 30 years of inquiry. Psychological Bulletin 130, 601–630.
Psychological stress and the human immune system a meta-analytic study of 30 years of inquiry.Crossref | GoogleScholarGoogle Scholar | 15250815PubMed |

Sherwin CM, Richards GJ, Nicol CJ (2010) Comparison of the welfare of layer hens in 4 housing systems in the UK. British Poultry Science 51, 488–499.
Comparison of the welfare of layer hens in 4 housing systems in the UK.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC3cfnsFeltw%3D%3D&md5=822341b0a8df26fbf7cd99e4733a1e43CAS | 20924842PubMed |

Singer RS, Cox LA, Dickson JS, Hurd HS, Phillips I, Miller GY (2007) Modeling the relationship between food animal health and human foodborne illness. Preventive Veterinary Medicine 79, 186–203.
Modeling the relationship between food animal health and human foodborne illness.Crossref | GoogleScholarGoogle Scholar | 17270298PubMed |

Sinisalo A, Niemi JK, Heinonen M, Valros A (2012) Tail biting and production performance in fattening pigs. Livestock Science 143, 220–225.
Tail biting and production performance in fattening pigs.Crossref | GoogleScholarGoogle Scholar |

Stott AW, Vosough Ahmadi B, Dwyer CM, Kupiec B, Morgan-Davies C, Milne CE, Ringrose S, Goddard P, Phillips K, Waterhouse A (2012) Interactions between profit and welfare on extensive sheep farms. Animal Welfare (South Mimms, England) 21, 57–64.
Interactions between profit and welfare on extensive sheep farms.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38Xnt1Gmt74%3D&md5=970382ea27f1f4ea4ab7dacb37dbe8c3CAS |

Stratmann A, Froehlich EKF, Gebhardt-Henrich S (2015) Modification of aviary design reduces incidence of falls, collisions and keel bone damage in laying hens. Applied Animal Behaviour Science 165, 112–123.
Modification of aviary design reduces incidence of falls, collisions and keel bone damage in laying hens.Crossref | GoogleScholarGoogle Scholar |

Sumner DA, Gow H, Hayes D, Matthews W, Norwood B, Rosen-Molina JT, Thurman W (2011) Economic and market issues on the sustainability of egg production in the United States: analysis of alternative production systems. Poultry Science 90, 241–250.
Economic and market issues on the sustainability of egg production in the United States: analysis of alternative production systems.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC3M%2FmtFWmuw%3D%3D&md5=302f1d12b7b01b34301a4ec8aaacbc31CAS | 21177466PubMed |

Tomley FM, Shirley MW (2009) Livestock infectious diseases and zoonoses. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 364, 2637–2642.
Livestock infectious diseases and zoonoses.Crossref | GoogleScholarGoogle Scholar | 19687034PubMed |

Torgerson P, Macpherson NL (2011) The socioeconomic burden of parasitic zoonoses: global trends. Veterinary Parasitology 182, 79–95.
The socioeconomic burden of parasitic zoonoses: global trends.Crossref | GoogleScholarGoogle Scholar | 21862222PubMed |

Uetake K (2013) Newborn calf welfare: a review focusing on mortality rates. Animal Science Journal 84, 101–105.
Newborn calf welfare: a review focusing on mortality rates.Crossref | GoogleScholarGoogle Scholar | 23384350PubMed |

Vanhonacker F (2014) Public consumer policies for higher welfare food products: changes and challenges. Journal of Agricultural & Environmental Ethics 27, 153–171.
Public consumer policies for higher welfare food products: changes and challenges.Crossref | GoogleScholarGoogle Scholar |

Verspecht A, Vanhonacker F, Verbeke W, Zoons J, van Huylenbroeck G (2011) Economic impact of decreasing stocking density in broiler production in Belgium. Poultry Science 90, 1844–1851.
Economic impact of decreasing stocking density in broiler production in Belgium.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC3MnnvFamtw%3D%3D&md5=c0de66e8a56ea7b3410361f62a0224e9CAS | 21753224PubMed |

Waterhouse A (1996) Animal welfare and sustainability of production under extensive conditions – a European perspective. Applied Animal Behaviour Science 49, 29–40.
Animal welfare and sustainability of production under extensive conditions – a European perspective.Crossref | GoogleScholarGoogle Scholar |

Webster J (2005) ‘Animal welfare: limping towards Eden.’ (Universities Federation for Animal Welfare: Potters Bar)

Welfare Quality® (2009) Welfare quality: science and society improving animal welfare. Available at http://welfarequalitynetwork.net/network/ [Verified 4 May 2016]

Windeyer MC, Leslie KE, Goddin SM, Hodgins DC, Lissemore KD, LeBlanc SJ (2014) Factors associated with morbidity and mortality in young dairy cattle. Veterinary Medicine 113, 231–240.

World Health Organization (2011) A brief guide to emerging infectious diseases and zoonoses. Available at www.who.int/zoonoses/vph/eu [Verified 4 April 2016]

World Health Organization (2014) Antimicrobial resistance. Global report on surveillance. Available at www.who.int/drugresistance/documents/surveillancereport/en/ [Verified 4 April 2016]

Yun CH, Wynn P, Ha K (2014) Stress, acute phase proteins and immune modulation in calves. Animal Production Science 54, 1561–1568.
Stress, acute phase proteins and immune modulation in calves.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC2cXhsVWjtrbO&md5=779981e3dc95cfd6ecedfdb5da5ab242CAS |

Zinsstag J, Schelling ER, Roth F, Bonfoh B, de Savigny D, Tanner M (2007) Human benefits of animal interventions for zoonotic control. Emerging Infectious Diseases 13, 527–531.
Human benefits of animal interventions for zoonotic control.Crossref | GoogleScholarGoogle Scholar | 17553265PubMed |

Zwald NR, Weigel KA, Chang YM, Welper RD, Clay B (2004) Genetic selection for health traits using producer-recorded data. I. Incidence rates, heritability estimates, and sire breeding values. Journal of Dairy Science 87, 4287–4294.
Genetic selection for health traits using producer-recorded data. I. Incidence rates, heritability estimates, and sire breeding values.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXhtVCjtrbF&md5=6769219c1ef52b7d98976eebececc2c2CAS | 15545392PubMed |