Rearing Laying Hens in Aviaries Reduces Fearfulness following Transfer to Furnished Cages

Margrethe Brantsaeter, Fernando Machado Tahamtani, Randi Opperman Moe, Tane Beate Hansen, Rachel Orritt, Christine J Nicol, Andrew Janczak

Research output: Contribution to journalArticle (Academic Journal)peer-review

10 Citations (Scopus)
318 Downloads (Pure)

Abstract

Appropriate rearing is essential for ensuring the welfare and productivity of laying hens. Early experience has the potential to affect the development of fearfulness. This study tested whether rearing in aviaries, as opposed to cages, reduces the fearfulness of laying hens after transfer to furnished cages. Fear responses were recorded as avoidance of a novel object in the home cage. Lohmann Selected Leghorns were reared in an aviary system or conventional rearing cages and then transported to furnished cages at 16 weeks, before the onset of lay. Observations of a selection of birds were conducted at 19 (N = 50 independent cages) and 21 (N = 48 independent cages) weeks of age. At 19 and 21 weeks, cage-reared birds showed higher levels of fearfulness indicated by spending more time away from the novel object compared to aviary-reared birds. These results suggest that rearing in an enriched aviary environment reduces fearfulness up to the fifth week after transfer to a new housing system, compared to rearing in cages.
Original languageEnglish
Article number13
Number of pages6
JournalFrontiers in Veterinary Science
Volume3
Issue number13
DOIs
Publication statusPublished - 28 Feb 2016

Keywords

  • laying hens
  • chicken
  • welfare
  • rearing
  • development
  • fearfulness
  • stress
  • fear

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