THE MOST IMPORTANT DILEMMAS REGARDING THE WELFARE OF FARM ANIMALS
Abstract
In this review paper, contradictions in modern livestock production as dilemmas of farm animal welfare are considered. The main dilemma concerns the question of whether extensive production in small farms is generally better than intensive production in large farms. The next dilemma relates to applying of intensive selection of animals and its impact on the emergence of welfare problems. Another dilemma is related to the two main interconnected problems of pig welfare in individual farrowing pens: the piglet death by crushing and the sows’ movement restriction. Also, welfare dilemma is the paradox of parent flocks of broiler lines breeding that could not be solved until pressure for genetic advancement in production is required due to the economic efficiency. The next example of the dilemma is the widespread practice of tail docking in piglets in order to reduce the risk of tail biting. Although the tail docking is painful and may cause death, anaesthesia is usually not applied on farms. A similar example of the dilemma is debeaking in the laying hens and the occurrence of feather pecking in free rearing systems.
It is important to notice the difference between the described dilemmas, where one premise opposites the other, which is essentially a conflict between the animal welfare goals and other values, such as economic, ethical and moral issues. Finally, there are also some dilemmas about the consumers’ willingness to pay for a higher price of products that origin from welfare friendly rearing conditions.
References
Appleby, M. C., Weary, D. M., & Sandøe, P. (2014). Introduction: Values, Dillemas and Solutions. In Appleby, M.C., Weary, D.M., Sandøe, P. (Eds.), Dilemmas in Animal Welfare; CAB International: Oxfordshire, UK.
Bartussek, H., Leeb, C. H., Held, S., 2000. Animal needs index for cattle. Federal Research Institute for Agriculture in Alpine Regions BAL Gumpenstein. Austria.
Blokhuis J. H., 2008. International cooperation in animal welfare: the Welfare Quality project®. Acta Veterinaria Scandinavica 50 (Suppl. 1): S10.
Boivin, X., Lensink, J., Tallet, C., & Veissier, I. (2003). Stockmanship and farm animal welfare. Animal Welfare, 12(4), 479-492.
Botreau, R., Veissier, I., Butterworth, A., Bracke, M. B. M. & Keeling, L. J. (2007). Definition of criteria for overall assessment o animal welfare. Animal Welfare, 16: 225-228.
Boulstridge, E., & Carrigan, M. (2000). Do consumers really care about corporate responsibility? Highlighting the attitude - behaviour gap. Journal of Communication Management, 4(4): 355–368.
Brambell, F. W. R. (1965). Report of the technical committee to enquire into the welfare of animals kept under intensive livestock husbandry systems. HMSO, London.
Broom, D.M., & Fraser, A. F. (2007). Domestic Animal Behaviour and Welfare. 4th ed. Wallingford, CABI; UK.
Cornish, A., Raubenheimer, D., & McGreevy, P. (2016). What we know about the public’s level of concern for farm animal welfare in food production in developed countries. Animals, 6(11), 74.
Dawkins, M. S., Donnelly, C. A., & Jones, T. A. (2004). Chicken welfare is influenced more by housing conditions than by stocking density. Nature, 427(6972), 342.
de Jong, I., Berg, C., Butterworth, A., & Estevéz, I. (2012). Scientific report updating the EFSA opinions on the welfare of broilers and broiler breeders. Supporting Publications 2012:EN-295. [116pp.]. Available online: https://efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/sp.efsa.2012.EN-295.
D’Eath, R. B. D., Arnott G., Turner S. P., Jensen T., Lahrmann H. P., Busch M. E., Niemi J. K., Lawrence A. B. & Sandøe P. (2014). Injurious tail biting in pigs: how can it be controlled in existing systems without tail docking? Animal 8(9): 1479–1497.
D’Eath, R.B., Niemi, J.K., Vosough Ahmadi, D., Rutherford, K. M. D., Ison, S.H., Turner, S.P., Anker, H. T., Jensen, T., Busch, M. E. Jensen K. K., Lawrence, A. B., & Sandøe P. (2016). Why are most EU pigs tail docked? Economic and ethical analysis of four pig housing and management scenarios in the light of EU legislation and animal welfare outcomes. Animal, 10(4), 687-699.
Devitt C, Kelly, P., Blake, M., Hanlon, A., & More, S. J. (2014). Dilemmas experienced by government veterinarians when responding professionally to farm animal welfare incidents in Ireland. Vet Rec Open 2014;1:e000003. doi:10.1136/ vropen-2013-000003.
EC. (2001). Council Directive 2001/88/EC of 23 October 2001 amending Directive 91/630/EEC laying down minimum standards for the protection of pigs.
EFSA. (2004). Opinion of the Scientific Panel on Animal Health and Welfare on a request from the Commission related to welfare aspects of the castration of piglets. The EFSA Journal. 91, 1-18.
EFSA. (2005a). Opinion of the Scientific Panel on Animal Health and Welfare on a request from the Commission related to welfare of weaners and rearing pigs: effects of different space allowances and floor types. The EFSA Journal (2005) 268, 1-19.
EFSA. (2005b). Opinion of the Scientific Panel on Animal Health and Welfare on a request from the Commission related to the welfare aspects of various systems of keeping laying hens. The EFSA Journal, (2005) 197, 1-2.
EFSA. (2007a). Scientific Opinion of the Panel on Animal Health and Welfare on a request from the Commission on Animal health and welfare aspects of different housing and husbandry systems for adult breeding boars, pregnant, farrowing sows and unweaned piglets. The EFSA Journal. 572, 1-13.
EFSA. (2007b). Scientific Opinion of the Panel on Animal Health and Welfare on a request from the Commission on Animal health and welfare in fattening pigs in relation to housing and husbandry. The EFSA Journal. 564, 1-14.
EFSA. (2007c). Scientific Opinion of the Panel on Animal Health and Welfare on a request from Commission on the risks associated with tail biting in pigs and possible means to reduce the need for tail docking considering the different housing and husbandry systems. The EFSA Journal. 611, 1-13.
EFSA. (2009a). Scientific report of EFSA prepared by the Animal Health and Animal Welfare Unit on the effects of farming systems on dairy cow welfare and disease. Annex to the EFSA Journal. 1143, 1-38.
EFSA. (2009b). Scientific Opinion of the Panel on Animal Health and Welfare on a request from the Commission on the risk assessment of the impact of housing, nutrition and feeding, management and genetic selection on metabolic and reproductive problems in dairy cows. The EFSA Journal. 1140, 1-75.
EFSA. 2010. Scientific Opinion on the influence of genetic parameters on the welfare and the resistance to stress of commercial broilers. EFSA Journal 2010; 8(7):1666. 82 pp. doi:10.2903/j.efsa.2010.1666. Available online: www.efsa.europa.eu
EFSA. (2012a). Guidance on risk assessment for animal welfare. EFSA Journal. 10(1):2513. 30 pp. doi:10.2903/j.efsa.2012.2513.
EFSA. (2012b). EFSA Panel on Animal Health and Welfare (AHAW); Statement on the use of animal-based measures to assess the welfare of animals. EFSA Journal. 10(6):2767. [29 pp.].
EFSA. (2012c). EFSA Panel on Animal Health and Welfare (AHAW); Scientific Opinion on the use of animal-based measures to assess welfare in pigs. EFSA Journal. 10(1):2512. pp. 85.
EFSA. (2012d). Scientific Opinion on the use of animal-based measures to assess welfare of dairy cows. EFSA Journal. 10(1):2554. [81 pp.].
EFSA. (2012e). Scientific Opinion on the use of animal-based measures to assess welfare of broilers. EFSA Journal. 10(7):2774. [74 pp.].
EFSA. (2012f). Outcome of the Public consultation on the Guidance on risk assessment for animal welfare. Supporting Publications. EN-231. 33 pp.
EFSA. (2014). Scientific Opinion on the welfare risks related to the farming of sheep for wool, meat and milk production. EFSA Journal. 12(12):3933, 128 pp. doi:10.2903/j.efsa.2014.3933.
EFSA. (2015a). EFSA’s internal project on the use of animal-based measures to assess animal welfare in EU - state of art of the 10 years of activities and analysis of the gaps. EFSA supporting publication. EN-884. 21 pp.
EFSA. (2015b). Scientific Opinion on the assessment of dairy cow welfare in small-scale farming systems. EFSA Journal. 13(6):4137, 102 pp.
EFSA. (2015c). Scientific Opinion on welfare aspects of the use of perches for laying hens. EFSA Journal. 13(6):4131, 70 pp.
Fratrić, N., Kirovski, D., & Hristov, S. (2007). Emocije i kognicija kod farmskih životinja. Prva međunarodna konferencija o dobrobiti i biosigurnosti na farmama u Srbiji, Dobrobit životinja i biosigurnost na farmama (75-86). 14-15 novembar, Beograd-Srbija.
Grandin, T., & J Deesing, M. (2014). Genetics and Animal Welfare. Genetics and the Behavior of Domestic Animals, pp. 435-472.
Harrison, R. (1964). Animal Machines: the new factory farming industry. 186 pp, London:Vincent Stuart Publishers ltd.
Hemsworth, P. H. (2018). Key determinants of pig welfare: implications of animal management and housing design on livestock welfare. Animal Production Science, 58(8), 1375-1386.
Hötzel, M. J. (2014). Improving farm animal welfare: Is evolution or revolution needed in production systems? In Dilemmas in Animal Welfare; Appleby, M.C., Weary, D.M., Sandøe, P., Eds.; CAB International: Oxfordshire, UK.
Hristov, S. (2005). Minimalni standardi o higijenskim uslovima gajenja i zaštite dobrobiti živine u Evropskoj Uniji. Živinarstvo, 8-9, 37-47.
Hristov, S., & Relić, R. (2005). Uslovi gajenja i zdravstvena zaštita koza. Zbornik radova sa Savetovanja «Proizvodnja i prerada kozijeg mleka» sa međunarodnim učešćem. Poljoprivredni fakultet Univerziteta u Beogradu, Institut za stočarstvo (29-42) Beograd
Hristov, S., Mitrović, S., Todorović, M., Đermanović, V., & Cvetković, I. (2006a). Pojava gubitka perja kod kokoši nosilja. Veterinarski glasnik, 60, 1-2, 107-114.
Hristov, S., Stanković, B., & Relić R. (2006b). Higijenski standardi u uzgoju prasadi. Zbornik radova 6. Simpozijuma „Uzgoj i zaštita zdravlja svinja” (17-24). Vršac.
Hristov, S., Vučinić, M., Relić, R., & Stanković B. (2006c). Uslovi gajenja, dobrobit i ponašanje farmskih životinja. Biotehnologija u stočarstvu, Vol. 22, Posebno izdanje, 22, 73-84.
Hristov, S., Stanković, B., Zlatanović, Z., Todorović-Joksimović, M., & Davidović V. (2007a). Rearing conditions, health and welfare of dairy cows. 2nd International Congress on Animal Husbandry “New Perspectives and Challenges of Sustainable Livestock farming” Belgrade, 3-5. October, 2007. Biotechnology in Animal Husbandry 24 (1-2): 25-35. Belgrade.
Hristov, S., Vučinić, M., & Stanković, B. (2007b). Zašto nam je protrebna dobrobit životinja. Prva međunarodna konferencija o dobrobiti i biosigurnosti na farmama u Srbiji «Dobrobit životinja i biosigurnost na farmama» (5-21). Beograd-Srbija.
Hristov, S., Fratrić, N., Kirovski, D., & Stanković, B. (2007c). Stres i dobrobit farmskih životinja. Prva međunarodna konferencija o dobrobiti i biosigurnosti na farmama u Srbiji. Dobrobit životinja i biosigurnost na farmama (87-95). Beograd-Srbija.
Hristov, S., Todorović-Joksimović, M., Milanov, S., & Trenić, V. (2007d). Minimalni standardi o uslovima gajenja i dobrobiti ovaca i koza. Prva međunarodna konferencija o dobrobiti i biosigurnosti na farmama u Srbiji «Dobrobit životinja i biosigurnost na farmama» (149-157). Beograd-Srbija.
Hristov, S., Vučinić, M., Maksimović, N., & Stanković, B. (2007e). Minimalni standardi u uslovima gajenja i dobrobiti goveda. Prva međunarodna konferencija o dobrobiti i biosigurnosti na farmama u Srbiji «Dobrobit životinja i biosigurnost na farmama» (131-139). Beograd-Srbija.
Hristov, S., Stankovic, B., Zlatanovic, Z., Todorovic-Joksimovic, M., Davidovic, V. (2008). Rearing conditions, health and welfare of dairy cows. Biotechnology in Animal Husbandry, 24 (1-2): 25-35.
Hristov, S., & Stanković, B. (2009). Standardi dobrobiti i biosigurnosti na farmama goveda i svinja. Zbornik radova XX Savetovanje dezinfekcija dezinsekcija i deratizacija u zaštiti zdravlja životinja i ljudi sa međunarodnim učešćem (41-48). Divčibare.
Hristov, S., & Stanković, B. (2009b).Welfare and biosecurity indicators evaluation in dairy production. 9th International symposium Modern trends in Livestock Production, Biotechnology in Animal Husbandry 25, 5-6, (623-630). Belgrade-Serbia.
Hristov, S., & Stanković, B. (2009c). Najznačajniji propusti u obezbeđenju dobrobiti životinja na farmama goveda i svinja. Zbornik naučnih radova XXIII Savetovanja agronoma, veterinara i tehnologa Vol. 15(3-4) (95-102). Beograd.
Hristov, S., Stanković, B., & Petrujkić, T. (2009). Standardi dobrobiti i biosigurnosti na farmama goveda i svinja - uslovi smeštaja i držanja goveda i svinja. Vet. glasnik, 63, 5-6, 369-379.
Hristov, S., Zlatanović, Z., Stanković, B. Ostojić-Andrić, D., Davidović V., Joksimović Todorović M., Plavšić B., & Dokmanović M. (2011). Procena dobrobiti krava u slobodnom sistemu držanja. Veterinarski glasnik, Vol. 65, Broj 5-6. 399-408.
Hristov, S., Stanković, B., & Zlatanović Z. (2012a). The most important indicators of dairy cows welfare evaluation. Proceedings of the first international symposium on animal science Book I. (313-327). Belgrade, Serbia.
Hristov, S., Stanković, B., & Maksimović, N. (2012b). Welfare of dairy cattle – today and tomorrow. Third International Scientific Symposium "Agrosym Jahorina 2012", 10.7251/AGSY1203055H, UDK 636+619:616, 55-62.
Hristov, S., Stanković, B., & Ostojić-Andrić, D. (2014). Different approaches to assess the welfare of dairy cows with some results in Serbia. Proceedings of the International Symposium on Animal Science (320-328). Belgrade – Zemun.
Hristov, S., Stanković, B., & Ostojić-Andrić, D. (2015a). The basic principles of dairy cattle welfare plan creation and implementation. Agroznanje, 16(4): 423-435.
Hristov, S., Stanković, B., & Ostojić-Andrić, D. (2015b). Welfare and behaviour in relation to disease of dairy cows. Institut za stočarstvo, Proceedings of 4th International Congress New Perspectives and Challenges of Sustainable Livestock Production, 7 - 9 (46-61). Belgrade, Serbia. ISBN 978 - 86 -82431 - 71 – 8.
Hristov, S., & Stanković, B. (2016). Dobrobit mlečnih goveda na farmama. Poglavlje u monografiji: OPTIMIZACIJA tehnoloških postupaka i zootehničkih resursa na farmama u cilju unapređenja održivosti proizvodnje mleka [Elektronski izvor]: monografija / urednik Vladan Bogdanović. - Beograd: Univerzitet, Poljoprivredni fakultet, 2016 (Beograd: Poljoprivredni fakultet). - 1 elektronski optički disk (CD-ROM); 12 cm, str. 159-182.
Hristov, S., Relić, R., Stanković, B., Andrić-Ostojić, D., & Maksimović, N. (2018). Relevance analysis and selection of key indicators for assessing the welfare of dairy cows. International symposium on animal science (ISAS) (214-222). Faculty of Agriculture in Belgrade – Zemun.
Kaukonen, E., & Valros, A. (2019). Feather Pecking and Cannibalism in Non-Beak Trimmed Laying Hen Flocks—Farmers’ Perspectives. Animals. 9, 43.
Kjarnes, U., Miele, M., & Roex, J. (2007). Attitudes of Consumers, Retailers and Producers to Animal Welfare. Welfare Quality® Reports Cardiff University. Cardiff, UK.
Lambton, S. L.; Knowles, T. G.; Yorke, C.; Nicol, C. J. The risk factors affecting the development of gentle and severe feather pecking in loose housed laying hens. Appl. Anim. Behav. Sci. 2010, 123, 32–42.
Lay, D. C., Fulton, R. M., Hester, P. Y., Karcher, D. M., Kjaer, J. B., Mench, J. A., Mullens, B. A., Newberry, R. C., Nicol, C. J., O’Sullivan, N. P., & Porter, R. E. (2011). Hen welfare in different housing systems. Poultry Science, 90(1), 278-294. https://doi.org/10.3382/ps.2010-00962.
Main, D.C.J., Mullan, S., Atkinson, C., Cooper, M., Wrathall, J.H.M. & Blokhuis, H.J. (2014). Best practice framework for animal welfare certification schemes. Trends in Food Science & Technology, 37, 127 -136.
Maksimović, N., Hristov, S., Stanković, B., & Davidović, V.(2007). Procena uslova gajenja i dobrobiti muznih krava. Prva međunarodna konferencija o dobrobiti i biosigurnosti na farmama u Srbiji «Dobrobit životinja i biosigurnost na farmama» (141-147). Beograd-Srbija.
McGlone, J. J. (2001). Farm animal welfare in the context of other society issues: toward sustainable systems. Livestock Production Science, 72(1-2), 75-81.
Mellor, D. J. (2016). Updating animal welfare thinking: Moving beyond the “Five Freedoms” towards “A Life Worth Living”. Animals. 6, 21.
Miele, M., Veissier, I., Evans, A. & Botreau, R. (2011). Animal welfare: establishing a dialogue between science and society. Animal Welfare 20, 103–117.
Nawroth, C., Langbein, J., Coulon, M., Gabor, V., Oesterwind, S., Benz-Schwarzburg, J. & von Borell, E. (2019). Farm Animal Cognition—Linking Behavior, Welfare and Ethics. Front. Vet. Sci. 6:24. doi: 10.3389/fvets.2019.00024
OIE. (2018a). Introduction to the Recommendations for Animal Welfare. In: Terrestrial Animal Health Code. OIE, Paris, Chapter 7.1. Available at: http://www.oie.int/fileadmin/Home/eng/Health_standards/tahc/current/chapitre_aw_introduction.pdf.
OIE. (2018b). Animal welfare and pig production system. In: Terrestrial Animal Health Code. OIE, Paris, Chapter 7.13. Available at: http://www.oie.int/fileadmin/Home/eng/Health_standards/tahc/current/chapitre_aw_pigs.pdf.
OIE. (2018c). Animal welfare and dairy cattle production systems. In: Terrestrial Animal Health Code. OIE, Paris, Chapter 7.11. Available at: http://www.oie.int/fileadmin/Home/eng/Health_standards/tahc/current/chapitre_aw_dairy_cattle.pdf.
OIE. (2018d). Animal welfare and beef cattle production systems. In: Terrestrial Animal Health Code. OIE, Paris, Chapter 7.9. Available at: http://www.oie.int/fileadmin/Home/eng/Health_standards/tahc/current/chapitre_aw_beef_catthe.pdf.
OIE. (2018e). Animal welfare and broiler chicken production systems. In: Terrestrial Animal Health Code. OIE, Paris, Chapter 7.10. Available at: http://www.oie.int/fileadmin/Home/eng/Health_standards/tahc/current/chapitre_aw_broiler_chicken.pdf.
Oltenacu, P. A. and Broom, D. M. 2010. The impact of genetic selection for increased milk yield on the welfare of dairy cows. Anim. Welfare, 19 (S), 39-49.
Ostojić-Andrić, D., S. Hristov, Ž. Novaković, V. Pantelić, M., Petrović M., Zlatanović, Z., & Nikšić, D. (2011). Dairy Cows Welfare Quality In Loose Vs. Tie Housing System. Biotechnology in Animal Husbandry, vol. 27, 3, Book 2, 975-984.
Ostojić Andrić, D., Hristov, S., Petrović, M. M., Pantelić, V., Aleksić, S., Nikšić, D., & Dokmanović, M. (2013). Welfare Indicators Of Dairy Cows - Selection And Implementation In Assessment. Proceedings of the 10th International Symposium „Modern Trends in Livestock Production“, Belgrade-Serbia, October 2nd-4th, p. 66-79.
Ostojić Andrić, D., Hristov, S., Petrović, M. M., Pantelić, V., Bojkovski, J., Novaković, Ž., Lazarević, M., & Nikšić, D. (2015). Housing Conditions And Welfare Of Dairy Cows In Serbia. Proceedings of The 4th International Congress “New perspectives and Challenges of Sustainable Livestock production” (62-73). Belgrade, Republic of Serbia.
Ostojić Andrić, D., Petrović, M. M., Hristov, S., Stanojković, A., Pantelić, V., Nikšić, D., & Petričević, M. (2016a). Key Health Issues Affecting Dairy Cows Welfare. Proceedings of The Second International Symposium of Veterinary Medicine - ISVM 2016, (p.78-89). Belgrade.
Ostojić Andrić, D., Hristov, S., Petrović, M. M., Pantelić, V., Nikšić, D., Caro Petrović, V., & Stanković, B. (2016b). The State Of Welfare On Serbian Dairy Farms, Biotechnology in Animal Husbandry 32(3): p 239 -249.
Ostojić Andrić, D., Hristov, S., Petrović, M. M., Pantelić, V., Nikšić, D., Stanojković, A., & Petrović-Caro, V. (2016c). Health And Welfare Of Dairy Cows In Serbia, 233-239, Animal Science, Series D., 2016c, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59, 2285-5750.
Ostojić Andrić, D., Hristov, S., Petrović, M. M., Pantelić, V., Nikšić, D., Caro Petrović, V., & Stanojković, A. (2017). Dairy cows health parameters in different season - an welfare approach. Proceedings of the 11th International Symposium, Modern Trends in Livestock Production (269-278). Belgrade, Serbia.
Ostojić Andrić, D., Hristov, S., Đedović, R., Pantelić, V., Nikšić, D., Dimitrijević, B., & Tolimir, N. (2018). Farm animal welfare concept: from beginnings to integration in modern production systems. Biotechnology in Animal Husbandry 34 (3): 269-277.
Pandurević, T., Hristov, S., & Mitrović, S.(2007). Minimalni standardi o uslovima gajenja i dobrobiti kokoši nosilja. Prva međunarodna konferencija o dobrobiti i biosigurnosti na farmama u Srbiji «Dobrobit životinja i biosigurnost na farmama» (193-198). Beograd-Srbija.
Petrović, M., Stanković, B., Hristov, S., Todorović-Joksimović, M., Davidović, V., & Božić, A. (2007). Minimalni standardi o uslovima gajenja i dobrobiti svinja. Prva međunarodna konferencija o dobrobiti i biosigurnosti na farmama u Srbiji «Dobrobit životinja i biosigurnost na farmama» (173-185). Beograd-Srbija.
Relić, R., Hristov, S., Joksimović-Todorović, M., Davidović, V., & Bojkovski, J. (2012). Behavior of cattle as an Indicator of their Health and Welfare. Proceedings of the Symposium „Prospects for the 3rd Millennium Agriculture“, Bulletin UASVM, Veterinary Medicine 69(1-2): 14-20.
Relić, R., Hristov, S., Samolovac, Lj., Bojkovski, J., & Rogožarski, D. (2014). Colostrum Management in Calves’ Welfare Risk Assessment. Bulletin UASVM Veterinary Medicine 71 (1) /2014, 187-192 Print ISSN 1843-5270; Electronic ISSN 1843-5378, AcademicPres (EAP), Romania.
Relić, R., Hristov, S., Savić, R., Rogožarski, N., & Becskei Zs. (2016). Assessment of some welfare parameters in lactating sows. Proceedings of the International Symposium on Animal Science 2016 (354 – 359). Belgrade-Zemun, Serbia.
Robbins, J. A., von Keyserlingk, M. A. G., Fraser, D., & Weary, D. M. (2016). Invited Review: Farm size and animal welfare. J. Anim. Sci. 94:5439-5455.
Rodenburg, T. B. & Turner S. P. (2012). The role of breeding and genetics in the welfare of farm animals Animal Frontiers, Volume 2, Issue 3, July 2012, Pages 16–21.
Samolovac, LJ., Hristov, S., Stanković, B., & Beskorovajni, R. (2018). Frequency of behavioural disorders of calves in the first month of life. International symposium on animal science (ISAS) 2018 (231-237). Faculty of Agriculture in Belgrade – Zemun.
Samolovac, Lj., Hristov, S., Stankovic, B., Maletic R., Relic, R., & Zlatanovic, Z. (2019). Influence of rearing conditions and birth season on calf welfare in the first month of life. Turkish Journal of Veterinary & Animal Sciences, vol. 43 br. 1, str. 102-109.
Sonoda, L. T, Fels M, Oczak, M, Vranken, E., Ismayilova G., Guarino, M., Viazzi, S., Bahr, C., Berckmans, & Hartung D., J. (2013). Tail Biting in pigs – Causes and management intervention strategies to reduce the behavioural disorder. A review. Berl Münch Tierärztl Wochenschr 126, 104–112.
Stanković, B., Hristov, S., Ostojić-Andrić, D., Zlatanović, Z., Samolovac, Lj., & Maksimović, N. (2014). The most common health disorders and welfare of dairy cows and calves. Biotechnology in Animal Husbandry 30 (4): 549-560.
Tawse, J. (2010). Consumer attitudes towards farm animals and their welfare: a pig production case study. Bioscience Horizons, 3(2): 156-165.
Todorović-Joksimović, M., Hristov, S., Davidović, V., & Stanković, B. (2007). Fiziološki aspekti ponašanja i dobrobiti farmskih životinja. Prva međunarodna konferencija o dobrobiti i biosigurnosti na farmama u Srbiji «Dobrobit životinja i biosigurnost na farmama» (65-74). Beograd-Srbija.
TR 20110. (2008-2011). Razvoj i implementacija standarda dobrobiti i biosigurnosti u cilju unapređenja tehnologije proizvodnje goveda i svinja ), Projekt, Ministarstvo nauke i tehnološkog razvoja Republike Srbije.
Vanhonacker, F., Verbeke, W., van Poucke, E., & Tuyttens, F. A. M. (2007). Segmentation based on consumers’ perceived importance and attitude toward farm animal welfare. International Journal of Sociology of Food and Agriculture 15 (3): 84– 100.
von Keyserlingk, M. A. G., Rushen, J., de Passillé, A. M., & Weary, D. M. (2009). Invited review: The welfare of dairy cattle—Key concepts and the role of science J. Dairy Sci. 92 :4101–4111.
Vučnić, M. (2006). Ponašanje, dobrobit i zaštita životinja. Univerzitet u Beogradu – Fakultet veterinarske medicine, Beograd.
Vučinić, M., Dimitrijević, B., & Hristov, S. (2007). Aktuelni problemi vezani za dobrobit životinja u Srbiji. Prva međunarodna konferencija o dobrobiti i biosigurnosti na farmama u Srbiji «Dobrobit životinja i biosigurnost na farmama» (113-129). Beograd-Srbija.
Welfare Quality® (2009a). Welfare Quality® assessment protocol for cattle. Welfare Quality® Consortium, Lelystad, Netherlands.
Welfare Quality®. (2009b). Welfare Quality® assessment protocol for pigs (sows and piglets, growing and finishing pigs). Welfare Quality® Consortium, Lelystad, Netherlands.
Welfare Quality®. (2009c). Welfare Quality® assessment protocol for poultry (broilers, laying hens). Welfare Quality® Consortium, Lelystad, Netherlands.
Valros, A., Munsterhjelm, C., Hänninen, L., Kauppinen, T., & Heinonen M. (2016). Managing undocked pigs–on-farm prevention of tail biting and attitudes towards tail biting and docking. Porcine Health Management, 2: 2-11.