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The development of fault bars in domestic chickens (Gallus gallus domesticus) increases with acute stressors and individual propensity: implications for animal welfare

Published online by Cambridge University Press:  01 January 2023

A Arrazola  and
S Torrey
A Arrazola
Affiliation:
Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
S Torrey*
Affiliation:
Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
*
* Contact for correspondence: [email protected]
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Abstract

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Negative experiences during feather growth can result in fault bar formation. Fault bars are malformations perpendicular to the rachis of the feather caused by stressful experiences during feather growth. However, there are little data on the causal effect of psychological stress on the formation of fault bars in chickens. The objective of this study was to examine the effect of acute stress in domestic chickens (Gallus gallus domesticus) on fault bar formation to validate this measure as a welfare indicator. Thirty broiler breeder pullets were housed in six cages at 21 days of age. Three cages were exposed to an acute stress protocol while the other three were the unstressed control. Feathers were marked as close as possible to the growing follicle at 21 (wing feathers) and 60 (all feathers) days of age. Acute stress came in the form of three procedures (unpredictable feed delivery, induction of tonic immobility, and crowding) repeated twice, 3-8 days apart and randomly, from 28 to 60 days of age. Wing, tail, and cover feathers were removed and measured at 60 days of age for weight, length, and number of fault bars. Exposure to acute, unpredictable stress increased the number of fault bars in wing feathers of chicks with a high number of initial fault bars. Feather growth decreased for the stressed group compared to the control. These results suggest that feather traits, including fault bars and feather growth, can be used as indicators of negative welfare in chickens.

Keywords

animal welfarefeather growthGallus gallus domesticuspsychological stressstress responsewelfare indicator
Type
Articles
Information
Animal Welfare , Volume 28 , Issue 3 , August 2019 , pp. 279 - 286
Copyright
© 2019 Universities Federation for Animal Welfare

References

Arrazola, A 2018 The effect of alternative feeding strategies for broil-er breeder pullets throughout the production cycle. Doctoral Thesis, University of Guelph, Guelph, Canada. https://hdl.handle.net/10214/14347Google Scholar
Arrazola, A, Mosco, E, Widowski, TM, Guerin, MT, Kiarie, EG and Torrey, S 2017 The effect of alternative feeding strate-gies for broiler pullets 1. Welfare and performance during rearing. Poultry Science. https://doi.org/10.3382/ps/pez170CrossRefGoogle Scholar
Aviagen 2013 Parent Stock Management Handbook: Ross. Aviagen Ltd: Huntsville, AL, USAGoogle Scholar
Aviagen 2016a Parent Stock Nutrition Specifications: Ross 308. Aviagen Ltd: Huntsville, AL, USAGoogle Scholar
Aviagen 2016b Parent Stock Performance Objectives: Ross 308. Aviagen Ltd: Huntsville, AL, USAGoogle Scholar
Bortolotti, GR, Dawson, RD and Murza, GL 2002 Stress during feather development predicts fitness potential. Journal of Animal Ecology 71: 333–342. https://doi.org/10.1046/j.1365-2656.2002.00602.xCrossRefGoogle Scholar
Bortolotti, GR, Marchant, T, Blas, J and Cabezas, S 2009 Tracking stress: localisation, deposition and stability of corticos-terone in feathers. Journal of Experimental Biology 212(10): 1477–1482. https://doi.org/10.1242/jeb.022152CrossRefGoogle ScholarPubMed
D’Eath, RB, Tolkamp, BJ, Kyriazakis, I and Lawrence, AB 2009 ‘Freedom from hunger’ and preventing obesity: the animal welfare implications of reducing food quantity or quality. Animal Behaviour 77: 275–288. https://doi.org/10.1016/j.anbe-hav.2008.10.028CrossRefGoogle Scholar
DesRochers, DW, Reed, JM, Awerman, J, Kluge, JA, Wilkinson, J, van Griethuijsen, LI, Aman, J and Romero, LM 2009 Exogenous and endogenous corticosterone alter feather quality. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 152: 46–52. https://doi.org/10.1016/j.cbpa.2008.08.034CrossRefGoogle ScholarPubMed
Duncan, I 1998 Behavior and behavioral needs. Poultry Science 77:1766–1772. https://doi.org/10.1093/ps/77.12.1766CrossRefGoogle ScholarPubMed
Forkman, B, Boissy, A, Meunier-Salaün, M-C, Canali, E and Jones, R 2007 A critical review of fear tests used on cattle, pigs, sheep, poultry and horses. Physiology & Behavior 92: 340–374. https://doi.org/10.1016/j.physbeh.2007.03.016CrossRefGoogle ScholarPubMed
Gualtieri, F, Armstrong, E, Longmoor, G, George, J, Clayton, D, D’Eath, R, Sandilands, V, Boswell, T and Smulders, T 2016 Developing and validating a practical screening tool for chronic stress in livestock. In: Dwyer, C, Haskell, M and Sandilands, V (eds) Proceedings of the 50th Congress of the International Society for Applied Ethology p 381. International Society of Applied Animal Behaviour Association: Edinburgh, UKGoogle Scholar
Heck, A, Onagbesan, O, Tona, K, Metayer, S, Putterflam, J, Jego, Y, Trevidy, J, Decuypere, E, Williams, J and Picard, M 2004 Effects of ad libitum feeding on performance of different strains of broiler breeders. British Poultry Science 45: 695–703. https://doi.org/10.1080/00071660400006537CrossRefGoogle ScholarPubMed
Hocking, P, Maxwell, M, Robertson, G and Mitchell, M 2002 Welfare assessment of broiler breeders that are food restricted after peak rate of lay. British Poultry Science 43: 5–15. https://doi.org/10.1080/00071660120109818CrossRefGoogle ScholarPubMed
Jovani, R and Blas, J 2004 Adaptive allocation of stress-induced deformities on bird feathers. Journal of Evolutionary Biology 17: 294–301. https://doi.org/10.1111/j.1420-9101.2003.00680.xCrossRefGoogle ScholarPubMed
Jovani, R and Diaz-Real, J 2012 Fault bars timing and duration: the power of studying feather fault bars and growth bands togeth-er. Journal of Avian Biology 43: 97–101. https://doi.org/10.1111/j.1600-048X.2012.05583.xCrossRefGoogle Scholar
Jovani, R and Rohwer, S 2017 Fault bars in bird feathers: mecha-nisms, and ecological and evolutionary causes and consequences. Biological Reviews 92: 1113–1127. https://doi.org/10.1111/brv.12273CrossRefGoogle Scholar
Møller, AP, Erritzøe, J and Nielsen, JT 2009 Frequency of fault bars in feathers of birds and susceptibility to predation. Biological Journal of the Linnean Society 97: 334–345. https://doi.org/10.1111/j.1095-8312.2009.01204.xCrossRefGoogle Scholar
Møller, A, Kimball, R and Erritzøe, J 1996 Sexual ornamentation, condition, and immune defence in the house sparrow Passer domesticus. Behavioral Ecology and Sociobiology 39: 317–322. https://doi.org/10.1007/s002650050295Google Scholar
Murphy, ME, King, JR and Lu, J 1988 Malnutrition during the postnuptial molt of white-crowned sparrows: feather growth and quality. Canadian Journal of Zoology 66: 1403–1413. https://doi.org/10.1139/z88-206CrossRefGoogle Scholar
Murphy, ME, Miller, BT and King, JR 1989 A structural com-parison of fault bars with feather defects known to be nutrition-ally induced. Canadian Journal of Zoology 67: 1311–1317. https://doi.org/10.1139/z89-185CrossRefGoogle Scholar
Riddle, O 1908 The genesis of fault-bars in feathers and the cause of alternation of light and dark fundamental bars. The Biological Bulletin 14: 328–370. https://doi.org/10.2307/1535869CrossRefGoogle Scholar
Romero, LM, Strochlic, DE and Wingfield, JC 2005 Corticosterone inhibits feather growth: potential mechanism explaining seasonal down regulation of corticosterone during molt. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 142: 65–73. https://doi.org/10.1016/j.cbpa.2005.07.014CrossRefGoogle ScholarPubMed
Strochlic, DE and Romero, LM 2008 The effects of chronic psychological and physical stress on feather replacement in European starlings (Sturnus vulgaris). Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 149: 68–79. https://doi.org/10.1016/j.cbpa.2007.10.011CrossRefGoogle ScholarPubMed
Veissier, I and Boissy, A 2007 Stress and welfare: two comple-mentary concepts that are intrinsically related to the animal's point of view. Physiology & Behavior 92: 429–433. https://doi.org/10.1016/j.physbeh.2006.11.008CrossRefGoogle Scholar
Whitmore, KD and Marzluff, JM 1998 Hand-rearing corvids for reintroduction: importance of feeding regime, nestling growth, and dominance. The Journal of Wildlife Management 62(4): 1460–1479. https://doi.org/10.2307/3802013CrossRefGoogle Scholar
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