Prenatal and Early Postnatal Behavioural Programming in Laying Hens, With Possible Implications for the Development of Injurious Pecking
Articolo
Data di Pubblicazione:
2021
Citazione:
Prenatal and Early Postnatal Behavioural Programming in Laying Hens, With Possible Implications for the Development of Injurious Pecking / E.N. De Haas, R.C. Newberry, J. Edgar, A.B. Riber, I. Estevez, V. Ferrante, C.E. Hernandez, J.B. Kjaer, S. Ozkan, I. Dimitrov, T.B. Rodenburg, A.M. Janczak. - In: FRONTIERS IN VETERINARY SCIENCE. - ISSN 2297-1769. - 8(2021 Jul 16), pp. 678500.1-678500.17. [10.3389/fvets.2021.678500]
Abstract:
Injurious pecking (IP) represents a serious concern for the welfare of laying hens (Gallus gallus domesticus). The risk of IP among hens with intact beaks in cage-free housing
prompts a need for solutions based on an understanding of underlying mechanisms. In this review, we explore how behavioural programming via prenatal and early postnatal
environmental conditions could influence the development of IP in laying hens. The possible roles of early life adversity and mismatch between early life programming and
subsequent environmental conditions are considered. We review the role of maternal stress, egg conditions, incubation settings (temperature, light, sound, odour) and chick
brooding conditions on behavioural programming that could be linked to IP. Brain and behavioural development can be programmed by prenatal and postnatal environmental
conditions, which if suboptimal could lead to a tendency to develop IP later in life, as we illustrate with a Jenga tower that could fall over if not built solidly. If so, steps taken to
optimise the environmental conditions of previous generations and incubation conditions, reduce stress around hatching, and guide the early learning of chicks will aid in prevention
of IP in commercial laying hen flocks.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
laying hen chicken, injurious pecking, behavioural programming, prenatal, epigenetics, incubation, early life development
Elenco autori:
E.N. De Haas, R.C. Newberry, J. Edgar, A.B. Riber, I. Estevez, V. Ferrante, C.E. Hernandez, J.B. Kjaer, S. Ozkan, I. Dimitrov, T.B. Rodenburg, A.M. Janczak
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