Keel Bone Fractures in Laying Hens: a Systematic Review of Prevalence Across Age, Housing Systems, and Strains

Overview

Journal J Anim Sci

Date 2020 Aug 19

PMID 32810250

Citations 21

Authors

Christina Rufener

Maja M Makagon

Affiliations

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References

Rufener C, Baur S, Stratmann A, Toscano M . A Reliable Method to Assess Keel Bone Fractures in Laying Hens From Radiographs Using a Tagged Visual Analogue Scale. Front Vet Sci. 2018; 5:124. PMC: 5999807. DOI: 10.3389/fvets.2018.00124. View

Petrik M, Guerin M, Widowski T . On-farm comparison of keel fracture prevalence and other welfare indicators in conventional cage and floor-housed laying hens in Ontario, Canada. Poult Sci. 2015; 94(4):579-85. DOI: 10.3382/ps/pev039. View

Whitehead C . Overview of bone biology in the egg-laying hen. Poult Sci. 2004; 83(2):193-9. DOI: 10.1093/ps/83.2.193. View

Kajlich A, Shivaprasad H, Trampel D, Hill A, Parsons R, Millman S . Incidence, Severity, and Welfare Implications of Lesions Observed Postmortem in Laying Hens from Commercial Noncage Farms in California and Iowa. Avian Dis. 2016; 60(1):8-15. DOI: 10.1637/11247-080415-Reg.1. View

LeBlanc S, Tobalske B, Quinton M, Springthorpe D, Szkotnicki B, Wuerbel H . Physical Health Problems and Environmental Challenges Influence Balancing Behaviour in Laying Hens. PLoS One. 2016; 11(4):e0153477. PMC: 4831827. DOI: 10.1371/journal.pone.0153477. View

Larsen H, Hemsworth P, Cronin G, Gebhardt-Henrich S, Smith C, Rault J . Relationship between welfare and individual ranging behaviour in commercial free-range laying hens. Animal. 2018; 12(11):2356-2364. DOI: 10.1017/S1751731118000022. View

Widowski T, Caston L, Hunniford M, Cooley L, Torrey S . Effect of space allowance and cage size on laying hens housed in furnished cages, Part I: Performance and well-being. Poult Sci. 2017; 96(11):3805-3815. PMC: 5850468. DOI: 10.3382/ps/pex197. View

Nicol C, Brown S, Glen E, Pope S, Short F, Warriss P . Effects of stocking density, flock size and management on the welfare of laying hens in single-tier aviaries. Br Poult Sci. 2006; 47(2):135-46. DOI: 10.1080/00071660600610609. View

Casey-Trott T, Heerkens J, Petrik M, Regmi P, Schrader L, Toscano M . Methods for assessment of keel bone damage in poultry. Poult Sci. 2015; 94(10):2339-50. DOI: 10.3382/ps/pev223. View

10.

Riddle E, Ali A, Campbell D, Siegford J . Space use by 4 strains of laying hens to perch, wing flap, dust bathe, stand and lie down. PLoS One. 2018; 13(1):e0190532. PMC: 5755850. DOI: 10.1371/journal.pone.0190532. View

11.

Eusemann B, Sharifi A, Patt A, Reinhard A, Schrader L, Thone-Reineke C . Influence of a Sustained Release Deslorelin Acetate Implant on Reproductive Physiology and Associated Traits in Laying Hens. Front Physiol. 2019; 9:1846. PMC: 6306558. DOI: 10.3389/fphys.2018.01846. View

12.

Rufener C, Baur S, Stratmann A, Toscano M . Keel bone fractures affect egg laying performance but not egg quality in laying hens housed in a commercial aviary system. Poult Sci. 2018; 98(4):1589-1600. DOI: 10.3382/ps/pey544. View

13.

Casey-Trott T, Guerin M, Sandilands V, Torrey S, Widowski T . Rearing system affects prevalence of keel-bone damage in laying hens: a longitudinal study of four consecutive flocks. Poult Sci. 2017; 96(7):2029-2039. DOI: 10.3382/ps/pex026. View

14.

Janczak A, Riber A . Review of rearing-related factors affecting the welfare of laying hens. Poult Sci. 2015; 94(7):1454-69. PMC: 4991062. DOI: 10.3382/ps/pev123. View

15.

Pickel T, Schrader L, Scholz B . Pressure load on keel bone and foot pads in perching laying hens in relation to perch design. Poult Sci. 2011; 90(4):715-24. DOI: 10.3382/ps.2010-01025. View

16.

Moher D, Liberati A, Tetzlaff J, Altman D . Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. PLoS Med. 2009; 6(7):e1000097. PMC: 2707599. DOI: 10.1371/journal.pmed.1000097. View

17.

Tarlton J, Wilkins L, Toscano M, Avery N, Knott L . Reduced bone breakage and increased bone strength in free range laying hens fed omega-3 polyunsaturated fatty acid supplemented diets. Bone. 2012; 52(2):578-86. DOI: 10.1016/j.bone.2012.11.003. View

18.

CLARK W, Cox W, Silversides F . Bone fracture incidence in end-of-lay high-producing, noncommercial laying hens identified using radiographs. Poult Sci. 2008; 87(10):1964-70. DOI: 10.3382/ps.2008-00115. View

19.

Regmi P, Robison C, Jones D, Gast R, Tempelman R, Karcher D . Effects of different litter substrates and induced molt on production performance and welfare quality parameters of white Leghorn hens housed in multi-tiered aviary system. Poult Sci. 2018; 97(10):3397-3404. DOI: 10.3382/ps/pey211. View

20.

Sandilands V, Moinard C, Sparks N . Providing laying hens with perches: fulfilling behavioural needs but causing injury?. Br Poult Sci. 2009; 50(4):395-406. DOI: 10.1080/00071660903110844. View