Negative Trends in Transport-related Mortality Rates in Broiler Chickens

  • Vecerek, Vladimir (Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno) ;
  • Voslarova, Eva (Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno) ;
  • Conte, Francesca (Department of Veterinary Sciences, University of Messina, Polo Universitario dell'Annunziata, viale Annunziata) ;
  • Vecerkova, Lenka (Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno) ;
  • Bedanova, Iveta (Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno)
  • Received : 2015.12.04
  • Accepted : 2016.01.12
  • Published : 2016.12.01


The high incidence of deaths during transport for slaughter is associated with poor welfare and represents a considerable loss to the poultry industry. In the period from 2009 to 2014, all shipments of broiler chickens to poultry processing plants were monitored in the Czech Republic and the numbers of chickens transported and those dying as a result of their transport were recorded and analysed. Overall transport-related mortality of broiler chickens transported for slaughter in the Czech Republic was 0.37%. It ranged from 0.31% to 0.72%, the increase approximately corresponding to the increasing transport distance. Statistically highly significant (p<0.001) differences were found when comparing transport-related mortality rates in individual seasons of the year. The greatest mortality (0.55%) was associated with transports carried out in winter months whereas the lowest death losses (0.30%) were found in chickens transported for slaughter in summer months. Our study revealed greater transport-related mortality rates in broiler chickens transported for slaughter in the Czech Republic than expected when considering earlier studies. The most pronounced increases were found in transports for shorter distances and in winter months. However, an increase was found at all transport distances monitored except for distances exceeding 300 km and all seasons except for summer. Furthermore, a general increasing tendency in chicken losses during the monitored period was found. The particularly alarming finding is that the mortality of broiler chickens being transported to processing plants has been showing a long-term increasing tendency over the last two decades. Further research should focus on the identification of specific factors leading to such high and growing mortality rates and developing practical guidelines to improve the welfare of the birds in transit accordingly.


  1. Aksit, M., S. Yalcin, S. Ozkan, K. Metin, and D. Ozdemir. 2006. Effects of temperature during rearing and crating on stress parameters and meat quality of broilers. Poult. Sci. 85:1867-1874.
  2. Ali, S., G. H. Kang, and S. T. Joo. 2008. A review: Influences of pre-slaughter stress on poultry meat quality. Asian Australas J. Anim. Sci. 21:912-916.
  3. Alshawabkeh, K. and M. J. Tabbaa. 1997. Factors affecting mortality and losses during transportation of broiler chickens from farms to processing plants in Jordan. Dirasat Agric. Sci. 24:53-61.
  4. Aral, Y., M. S. Arikan, A. C. Akin, C. Y. Kaya Kuyululu, S. C. Guloglu, and E. Sakarya. 2014. Economic losses due to live weight shrinkage and mortality during the broiler transport. Ankara Univ. Vet. Fak. Derg. 61:205-210.
  5. Bianchi, M., M. Petracci, and C. Cavani. 2006. The influence of genotype, market live weight, transportation, and holding conditions prior to slaughter on broilers breast meat color. Poult. Sci. 85:123-128.
  6. Chauvin, C., S. Hillion, L. Balaine, V. Michel, J. Peraste, I. Petetin, C. Lupo, and S. Le Bouquin. 2011. Factors associated with mortality of broilers during transport to slaughterhouse. Animal 5:287-293.
  7. Cockram, M. S. 2007. Criteria and potential reasons for maximum journey times for farm animals destined for slaughter. Appl. Anim. Behav. Sci. 106:234-243.
  8. European Parliament. 2012. Declaration of the European Parliament of 15 March 2012 on the establishment of a maximum 8-hour journey limit for animals transported in the European Union for the purpose of being slaughtered. Off. J. Eur. Union C81E:25.
  9. European Council. 2005. Council Regulation (EC) No 1/2005 of 22 December 2004 on the protection of animals during transport and related operations and amending Directives 64/432/EEC and 93/119/EC and Regulation (EC) No 1255/97. Off. J. Eur. Union L3:1-44.
  10. European Council. 2007. Council Directive 2007/43/EC of 28 June 2007 laying down minimum rules for the protection of chickens kept for meat production. Off. J. Eur. Union L182:19-28.
  11. Fries, R. and A. Kobe. 1992. Data of flocks obtained in poultry meat processing (broilers). Dtsch. Tierarztl. Wochenschr. 99:500-504.
  12. Gregory, N. G. and S. D. Austin. 1992. Causes of trauma in broilers arriving dead at poultry-processing plants. Vet. Rec. 131:501-503.
  13. Knezacek, T. D., A. A. Olkowski, P. J. Kettlewell, M. A. Mitchell, and H. L. Classen. 2010. Temperature gradients in trailers and changes in broiler rectal and core body temperature during winter transportation in Saskatchewan. Can. J. Anim. Sci. 90:321-330.
  14. Kettlewell, P. J., R. P. Hoxey, and M. A. Mitchell. 2000. Heat produced by broiler chickens in a commercial transport vehicle. J. Agric. Eng. Res. 75:315-326.
  15. Meluzzi, A. and F. Sirri. 2009. Welfare of broiler chickens. Ital. J. Anim. Sci. 8:161-173.
  16. Mitchell, M. A. 2006. Influence of pre-slaughter stress on animal welfare and processing efficiency. Worlds Poult. Sci. J. 62:254.
  17. Mitchell, M. A. and P. J. Kettlewell. 1998. Physiological stress and welfare of broiler chickens in transit: Solutions not problems! Poult. Sci. 77:1803-1814.
  18. Nielsen, B. L., L. Dybkjaer, and M. S. Herskin. 2011. Road transport of farm animals: Effects of journey duration on animal welfare. Animal 5:415-427.
  19. Nijdam, E., P. Arens, E. Lambooij, E. Decuypere, and J. A. Stegeman. 2004. Factors influencing bruises and mortality of broilers during catching, transport, and lairage. Poult. Sci. 83:1610-1615.
  20. Oba, A., M. de Almeida, J. W. Pinheiro, E. I. Ida, D. F. Marchi, A. L. Soares, and M. Shimokomaki. 2009. The effect of management of transport and lairage conditions on broiler chicken breast meat quality and DOA (Death on Arrival). Braz. Arch. Biol. Technol. 52:205-211.
  21. Petracci, M., M. Bianchi, C. Cavani, P. Gaspari, and A. Lavazza. 2006. Preslaughter mortality in broiler chickens, turkeys, and spent hens under commercial slaughtering. Poult. Sci. 85:1660-1664.
  22. Ritz, C. W., A. B. Webster, and M. Czarick. 2005. Evaluation of hot weather thermal environment and incidence of mortality associated with broiler live haul. J. Appl. Poult. Res. 14:594-602.
  23. Robins, A., and C. J. C. Phillips. 2011. International approaches to the welfare of meat chickens. Worlds Poult. Sci. J. 67:351-369.
  24. Sandercock, D. A., R. R. Hunter, M. A. Mitchell, and P. M. Hocking. 2006. Thermoregulatory capacity and muscle membrane integrity are compromised in broilers compared with layers at the same age or body weight. Br. Poult. Sci. 47:322-329.
  25. Schwartzkopf-Genswein, K. S., L. Faucitano, S. Dadgar, P. Shand, L. A. González, and T. G. Crowe. 2012. Road transport of cattle, swine and poultry in North America and its impact on animal welfare, carcass and meat quality: A review. Meat Sci. 92:227-243.
  26. Tabbaa, M. J. and K. Alshawabkeh. 2000. Some factors affecting preslaughtering mortality and damage to broilers and interaction during transportation to processing plants. Dirasat Agric. Sci. 27:375-384.
  27. Vecerek, V., S. Grbalova, E. Voslarova, B. Janackova, and M. Malena. 2006. Effects of travel distance and the season of the year on death rates of broilers transported to poultry processing plants. Poult. Sci. 85:1881-1884.
  28. Vieira, F. M. C., I. J. O. da Silva, J. A. D. Barbosa Filho, and A. M. C. Vieira. 2010. Productive losses on broiler preslaughter operations: effects of the distance from farms to abattoirs and of lairage time in a climatized holding area. R. Bras. Zootec. 39:2471-2476.
  29. Vieira, F. M. C., I. J. O. Silva, J. A. D. Barbosa Filho, A. M. C. Vieira, and D. M. Broom. 2011a. Preslaughter mortality of broilers in relation to lairage and season in a subtropical climate. Poult. Sci. 90:2127-2133.
  30. Vieira, F. M. C., I. J. O. da Silva, J. A. D. Barbosa, A. M. C. Vieira, V. C. Rodrigues-Sarnighausen, and D. D. Garcia. 2011b. Thermal stress related with mortality rates on broilers' preslaughter operations: a lairage time effect study. Cienc. Rural 41:1639-1644.
  31. Voslarova, E., B. Janackova, L. Rubesova, A. Kozak, I. Bedanova, L. Steinhauser, and V. Vecerek. 2007. Mortality rates in poultry species and categories during transport for slaughter. Acta Vet. Brno 76:101-108.
  32. Voslarova, E., P. Chloupek, P. Vosmerova, J. Chloupek, I. Bedanova, and V. Vecerek. 2011. Time course changes in selected biochemical indices of broilers in response to pretransport handling. Poult. Sci. 90:2144-2152.
  33. Vosmerova, P., J. Chloupek, I. Bedanova, P. Chloupek, K. Kruzikova, J. Blahova, and V. Vecerek. 2010. Changes in selected biochemical indices related to transport of broilers to slaughterhouse under different ambient temperatures. Poult. Sci. 89:2719-2725.
  34. Warriss, P. D., E. A. Bevis, S. N. Brown, and J. E. Edwards. 1992. Longer journeys to processing plants are associated with higher mortality in broiler-chickens. Br. Poult. Sci. 33:201-206.
  35. Weeks, C. A. 2014. Poultry handling and transport. In: Livestock Handling and Transport, (Ed. T. Grandin). Cabi Publishing, Wallingford, England. pp. 378-398.
  36. Whiting, T. ., E. D. Mairead, and D. P. Rasali. 2007. Warm weather transport of broiler chickens in Manitoba. II. Truck management factors associated with death loss in transit to slaughter. Can. Vet. J. 48:148-154.
  37. Zar, J. H. 1999. Biostatistical Analysis. 4th edn. Prentice Hall, Upper Saddle River, NJ, USA.

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