Application of open field, tonic immobility, and attention bias tests to hens with different ranging patterns

Assessment of negative affective states is a key component of animal welfare research. In laying hens, excessive fearfulness results in reduced production and increased sensitivity to stress. Fearfulness can be defined as a response to a known threat, but anxiety is a response to an unknown threat a...

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Bibliographic Details
Main Authors: Dana L.M. Campbell, Emily J. Dickson, Caroline Lee
Format: Article
Language:English
Published: PeerJ Inc. 2019-11-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/8122.pdf