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Genomewide Mapping of Selection Signatures and Genes for Extreme Feather Pecking in Two Divergently Selected Laying Hen Lines
Open AccessArticle

Effects of Management Strategies on Non-Beak-Trimmed Laying Hens in Furnished Cages that Were Reared in a Non-Cage System

1
Epidemiology, Health and Welfare Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 22440 Ploufragan, France
2
Birds and Poultry Biology Research Unit, Centre INRA Val de Loire, Technical Institute for Poultry (ITAVI), 37380 Nouzilly, France
3
Direction of Strategy and Programmes, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 rue Pierre et Marie Curie, 94701 Maisons-Alfort, France
*
Author to whom correspondence should be addressed.
Animals 2020, 10(3), 399; https://doi.org/10.3390/ani10030399
Received: 2 February 2020 / Revised: 17 February 2020 / Accepted: 24 February 2020 / Published: 28 February 2020
(This article belongs to the Special Issue Feather Pecking in Laying Hens and Its Effects on Welfare)
The practice of beak trimming in laying hens limits the negative consequences of injurious pecking, but could be prohibited by future regulations. We addressed in this study the question of how to prevent or minimize injurious pecking and its consequences, especially when beak trimming is not carried out. We found that a combination of different management strategies applied from rearing to laying stages improved to some extent the welfare of non-beak trimmed birds (lower mortality and fear of a novel object, better feather cover up to 61 weeks of age). Fiber supplementation in the feed did not provide any benefit on pecking-related problems. We suggest practical solutions to limit the consequences of injurious pecking where non-beak-trimmed animals are reared in barn system and transferred to furnished cages, while preserving good welfare, health and productivity.
Beak trimming in laying hens limits the negative consequences of injurious pecking, but could be prohibited by future regulations. This study assessed a combination of management strategies during the rearing period (objects, perches, music, human presence) and laying period (scratching mats, objects, feed fiber supplementation) to raise non-beak-trimmed animals. The welfare and laying performances of beak-trimmed (T) and non-beak-trimmed (NT) ISA Brown birds were compared between groups with (E) or without (NE) these strategies, with or without fiber supplementation in the diet during laying period. Fiber supplementation did not provide any benefit on pecking-related problems. In comparison with NT-NE birds, NT-E birds had lower mortality, were less fearful of a novel object, and had a better feather cover, without a negative impact on productivity (same laying rate and egg quality). Although this study showed advantages of beak trimming (T birds had higher body weights, laying rates and lower hen mortality than NT birds), it highlighted related problems (increasing pullet mortality, decreasing early weights and increasing beak defects). This study proposes practical solutions to limit the consequences of injurious pecking in non-beak-trimmed animals. View Full-Text
Keywords: laying hen; injurious feather pecking; rearing; feather cover; environmental enrichment laying hen; injurious feather pecking; rearing; feather cover; environmental enrichment
MDPI and ACS Style

Guinebretière, M.; Mika, A.; Michel, V.; Balaine, L.; Thomas, R.; Keïta, A.; Pol, F. Effects of Management Strategies on Non-Beak-Trimmed Laying Hens in Furnished Cages that Were Reared in a Non-Cage System. Animals 2020, 10, 399. https://doi.org/10.3390/ani10030399

AMA Style

Guinebretière M, Mika A, Michel V, Balaine L, Thomas R, Keïta A, Pol F. Effects of Management Strategies on Non-Beak-Trimmed Laying Hens in Furnished Cages that Were Reared in a Non-Cage System. Animals. 2020; 10(3):399. https://doi.org/10.3390/ani10030399

Chicago/Turabian Style

Guinebretière, Maryse; Mika, Amandine; Michel, Virginie; Balaine, Loïc; Thomas, Rodolphe; Keïta, Alassane; Pol, Françoise. 2020. "Effects of Management Strategies on Non-Beak-Trimmed Laying Hens in Furnished Cages that Were Reared in a Non-Cage System" Animals 10, no. 3: 399. https://doi.org/10.3390/ani10030399

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