Effects of noise and light intensities on stress and fear reactions in broilers

Abstract views: 162 / PDF downloads: 16


  • EVRIM DERELI FIDAN Assistant Professor, Adnan Menderes University, 09016, Aydin, Turkey
  • MEHMET KENAN TÜRKYILMAZ Professor, Veterinary Faculty, Department of Animal Breeding. Adnan Menderes University, 09016, Aydin, Turkey
  • AHMET NAZLIGÜL Professor, Veterinary Faculty, Department of Animal Breeding. Adnan Menderes University, 09016, Aydin, Turkey



Broiler, Light intensity, Noise level, Stress


The study was conducted to investigate the effects of noise and light intensity on stress and fear reactions in broilers. Broiler chicks (288) were randomly allocated to nine environmentally controlled rooms containing 16 male and 16 female chicks. Commencing from day 15, the broilers were exposed to noise and light levels of 60, 80 and 100 dB and 50, 100 and 200 lx for 30 sec in every 2 h, respectively. There was no statistical difference between 60 and 80 dB noise level groups for heterophil to lymphocyte ratio (h/l) while it was determined that when noise level had increased to 100 dB, h/l reached to 0.82. The effect of light intensity had no statistical significance on
stress. On the other hand, it was determined that fear response of broilers had not affected by either noise level or light intensity. It also revealed that live weights at 42 days of age were affected significantly by the noise and light levels while there were no differences in feed consumption, feed conversion ratios, and mortality rates.


Download data is not yet available.


Alvino G M, Blatchford R A, Archer G S and Mench J A. 2009. Light intensity during rearing affects the behavioural synchrony and resting patterns of broiler chickens. British Poultry Science 50: 275–83. DOI: https://doi.org/10.1080/00071660902942775

Benoff F H and Siegel P B. 1976. Genetic analyses of tonic immobility in young Japanese quail (Coturnix coturnix japonica). Animal Learning and Behavior 4: 160–62. DOI: https://doi.org/10.3758/BF03214027

Blatchford R A, Klasing K C, Shivaprasad H L, Wakenell P S, Archer G S and Mench J A. 2009. The effect of light intensity on the behavior, eye and leg health, and immune function of broiler chickens. Poultry Science 88 (1): 20–28. DOI: https://doi.org/10.3382/ps.2008-00177

Chloupek P, Voslarova E, Chloupek J, Bedanova I, Pistekova V and Vecerek V. 2009. Stress in broiler chickens due to acute noise exposure. Acta Veterinaria Brno 78: 93–98. DOI: https://doi.org/10.2754/avb200978010093

Council Directive 2007. (Laying down minimum rules for the protection of chickens kept for meat production: 2007/43/EC.) Official Journal of the European Union. http://eurlex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2007:182:0019:0028:EN:PDF.

Deep A, Schwean L K, Crowe T G, Fancher B I and Classen H L. 2010. Effect of light intensity on broiler production, processing characteristics, and welfare. Poultry Science 89: 2326–33. DOI: https://doi.org/10.3382/ps.2010-00964

Durham D, Park D L and Girod D A. 2002. Breed differences in cochlear integrity in adult commercially raised chicks. Hearing Research 166: 82–95. DOI: https://doi.org/10.1016/S0378-5955(02)00301-5

Gross W B and Siegel H S. 1983. Evaluation of heterophyl/lymphocyte as a measurement of stress in chickens. Avian Diseases 27: 972–79. DOI: https://doi.org/10.2307/1590198

Lien R J, Hess J B, McKee S R and Bilgili S F. 2008. Effect of light intensity on live performance and processing characteristics of broilers. Poultry Science 87: 853–57. DOI: https://doi.org/10.3382/ps.2007-00277

Lien R J, Hess J B, McKee S R, Bilgili S F and Townsend J C. 2007. Effect of light intensity and photoperiod on live performance heterophil to lymphocyte ratio and processing yields of broilers. Poultry Science 86: 1287–93. DOI: https://doi.org/10.1093/ps/86.7.1287

Lien R J, Hooie L B and Hess J B. 2009. Influence of long bright and increasing dim photoperiods of live and processing performance of two broiler strains. Poultry Science 88: 896– 903. DOI: https://doi.org/10.3382/ps.2008-00309

McFarlane J M, Curtis S E, Simon J and Izquierdo O A. 1989. Multiple concurrent stressors in chicks 2. Effects on hematologic, body composition, and pathologic traits. Poultry Science 68: 510–21. DOI: https://doi.org/10.3382/ps.0680510

Nijdam E E, Delezie E, Larnbooij E, Nabuurs M J A, Decuypere E and Stegeman J A. 2005. Comparion of bruises and mortality, stress parameters, and meat quality in manually and mechanically caught broilers. Poultry Science 84: 467–74. DOI: https://doi.org/10.1093/ps/84.3.467

North O M and Bell D D. 1990. Commercial Chicken Production Manual. An Avi Book, Published by Van Nostrand Reinhold, New Jersey.

NRC. 1994. Nutrient Requirements of Poultry. 9th Rev. edn. National Academy Press, Washington DC.

Olenrejawu H A, Purswell J L, Collier S D and Branton S L. 2010. Effect of ambient temperature and light intensity on physiological reactions of heavy broiler chickens. Poultry Science 89: 2668–77. DOI: https://doi.org/10.3382/ps.2010-00806

Siegel P B and Gross W B. 2000. General principles of stress and well-being. Livestock Handling and Transport. 3rd edn, pp. 27–41. CABI publishing, Wallingford, UK. DOI: https://doi.org/10.1079/9780851994093.0027

Statistical Packages for the Social Sciences. 2006. SPSS base 15.0 user’s guide, SPSS, Chicago, IL.

Wang B, Rathgeber B M and Astatkie T. 2008. The stress and fear levels of microwave toe-treated broiler chickens grown with two photoperiod programs. Poultry Science 87: 1248– 52. DOI: https://doi.org/10.3382/ps.2006-00440

Zulkifli I, Gilbert J, Liew P K and Ginsos J. 2002. The effects of regular visual contact with human beings on fear, stress, antibody and growth responses in broiler chickens. Applied Animal Behaviour Science 79: 103–12. DOI: https://doi.org/10.1016/S0168-1591(02)00135-1









How to Cite

FIDAN, E. D., TÜRKYILMAZ, M. K., & NAZLIGÜL, A. (2015). Effects of noise and light intensities on stress and fear reactions in broilers. The Indian Journal of Animal Sciences, 85(12), 1375–1378. https://doi.org/10.56093/ijans.v85i12.54406