{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T20:45:45Z","timestamp":1789764345044,"version":"4.0.1"},"reference-count":60,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2021,1,25]],"date-time":"2021-01-25T00:00:00Z","timestamp":1611532800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Poultry Hub Australia","award":["2017-20"],"award-info":[{"award-number":["2017-20"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>Inconsistency between the environments of indoor pullet rearing and adult outdoor housing may increase the fearfulness in free-range hens. Rearing enrichments and\/or range use may reduce adult fearfulness. Hy-Line Brown\u00ae chicks (n = 1700) were reared inside across 16 weeks with three enrichment treatments: weekly changing novel objects, custom-designed perching\/navigation structures, or no additional enrichments. Pullets were transferred to a free-range system at 16 weeks of age, with range access provided from 25 weeks. At 62 weeks, 135 hens were selected from the three rearing treatments and two ranging groups (indoor: no ranging and outdoor: daily ranging) based on individual radio-frequency identification tracking. Individual behavioural tests of tonic immobility, emergence, open field, and novel object (pen level) were carried out on hens. Spectrograms of vocalisations were analysed for the open field test, as well as computer vision tracking of hen locomotion. The results showed few effects of rearing treatments, with outdoor rangers less fearful than indoor hens. The latency to step in the open field test negatively correlated with hen feather coverage. These results show that individual variation in ranging behaviours is present even following rearing enrichment treatments, and subsequent range use might be an indicator of bird fearfulness.<\/jats:p>","DOI":"10.3390\/ani11020300","type":"journal-article","created":{"date-parts":[[2021,1,25]],"date-time":"2021-01-25T09:59:40Z","timestamp":1611568780000},"page":"300","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Relationship between Range Use and Fearfulness in Free-Range Hens from Different Rearing Enrichments"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0113-6324","authenticated-orcid":false,"given":"Md Saiful","family":"Bari","sequence":"first","affiliation":[{"name":"School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia"},{"name":"Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Armidale, NSW 2350, Australia"},{"name":"Department of Dairy and Poultry Science, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3122-1178","authenticated-orcid":false,"given":"Simon S.","family":"Allen","sequence":"additional","affiliation":[{"name":"Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Sandy Bay, TAS 7005, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jarrod","family":"Mesken","sequence":"additional","affiliation":[{"name":"School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew M.","family":"Cohen-Barnhouse","sequence":"additional","affiliation":[{"name":"School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia"},{"name":"Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Armidale, NSW 2350, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dana L. M.","family":"Campbell","sequence":"additional","affiliation":[{"name":"Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Armidale, NSW 2350, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,1,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1080\/00480169.2014.966167","article-title":"Scientific assessment of animal welfare","volume":"63","author":"Hemsworth","year":"2015","journal-title":"N. Z. Vet. J."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Mellor, D.J. (2017). Operational details of the five domains model and its key applications to the assessment and management of animal welfare. 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