{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Herborn KA"],"funding":["Biotechnology and Biological Sciences Research Council"],"pagination":["20200086"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC7328393"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["17(167)"],"pubmed_abstract":["Chicks (<i>Gallus gallus domesticus</i>) make a repetitive, high energy 'distress' call when stressed. Distress calls are a catch-all response to a range of environmental stressors, and elicit food calling and brooding from hens. Pharmacological and behavioural laboratory studies link expression of this call with negative affective state. As such, there is an <i>a priori</i> expectation that distress calls on farms indicate not only physical, but emotional welfare. Using whole-house recordings on 12 commercial broiler flocks (<i>n</i> = 25 090-26 510/flock), we show that early life (day 1-4 of placement) distress call rate can be simply and linearly estimated using a single acoustic parameter: spectral entropy. After filtering to remove low-frequency machinery noise, spectral entropy per m"],"journal":["Journal of the Royal Society, Interface"],"pubmed_title":["Spectral entropy of early-life distress calls as an iceberg indicator of chicken welfare."],"pmcid":["PMC7328393"],"funding_grant_id":["BB/N010361/1"],"pubmed_authors":["Sandilands V","Asher L","Mitchell MA","Herborn KA","McElligott AG","Bradshaw B"],"additional_accession":[]},"is_claimable":false,"name":"Spectral entropy of early-life distress calls as an iceberg indicator of chicken welfare.","description":"Chicks (<i>Gallus gallus domesticus</i>) make a repetitive, high energy 'distress' call when stressed. Distress calls are a catch-all response to a range of environmental stressors, and elicit food calling and brooding from hens. Pharmacological and behavioural laboratory studies link expression of this call with negative affective state. As such, there is an <i>a priori</i> expectation that distress calls on farms indicate not only physical, but emotional welfare. Using whole-house recordings on 12 commercial broiler flocks (<i>n</i> = 25 090-26 510/flock), we show that early life (day 1-4 of placement) distress call rate can be simply and linearly estimated using a single acoustic parameter: spectral entropy. After filtering to remove low-frequency machinery noise, spectral entropy per m","dates":{"release":"2020-01-01T00:00:00Z","publication":"2020 Jun","modification":"2025-04-19T21:25:22.499Z","creation":"2020-07-06T07:06:58Z"},"accession":"S-EPMC7328393","cross_references":{"pubmed":["32517633"],"doi":["10.1098/rsif.2020.0086"]}}