{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T10:59:22Z","timestamp":1780052362497,"version":"3.53.1"},"reference-count":0,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[1995,10,1]],"date-time":"1995-10-01T00:00:00Z","timestamp":812505600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Lab Anim"],"published-print":{"date-parts":[[1995,10,1]]},"abstract":"<jats:p> Although mental well-being has long been accepted as an important aspect of animal welfare, the subjective feelings of farm or laboratory animals are regarded as lying beyond the scope of scientific enquiry. We now report that pharmacological conditioning of pigs with a drug, pentylenetetrazole, known to induce anxiety in man, permits investigation of the presence or absence of this psychological state during exposure to a variety of environmental stimuli encountered during normal husbandry. Such pharmacological conditioning therefore provides a valuable means to assess and improve elements of animal welfare and should be applicable to other species that show operant behaviour. <\/jats:p>","DOI":"10.1258\/002367795780739999","type":"journal-article","created":{"date-parts":[[2007,5,20]],"date-time":"2007-05-20T23:45:00Z","timestamp":1179704700000},"page":"370-379","source":"Crossref","is-referenced-by-count":7,"title":["Evaluation of animal welfare by the self-expression of an anxiety state"],"prefix":"10.1177","volume":"29","author":[{"given":"M. P.","family":"Carey","sequence":"first","affiliation":[{"name":"Department of Physiology, University College London, Gower Street, London WC1E 6BT, UK; Laboratory for the Neurophysiology of Behaviour and Neural Networks, Department of Human Physiology 'F. Bottazi', Second University of Naples (SUN), Constantinopoli\r 16, 80138 Napoli, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. P.","family":"Fry","sequence":"additional","affiliation":[{"name":"Department of Physiology, University College London, Gower Street, London WC1E 6BT, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[1995,10,1]]},"container-title":["Laboratory Animals"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1258\/002367795780739999","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1258\/002367795780739999","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,3]],"date-time":"2025-03-03T22:03:53Z","timestamp":1741039433000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1258\/002367795780739999"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1995,10,1]]},"references-count":0,"journal-issue":{"issue":"4","published-print":{"date-parts":[[1995,10,1]]}},"alternative-id":["10.1258\/002367795780739999"],"URL":"https:\/\/doi.org\/10.1258\/002367795780739999","relation":{},"ISSN":["0023-6772","1758-1117"],"issn-type":[{"value":"0023-6772","type":"print"},{"value":"1758-1117","type":"electronic"}],"subject":[],"published":{"date-parts":[[1995,10,1]]}}}