{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,21]],"date-time":"2026-01-21T07:30:42Z","timestamp":1768980642789,"version":"3.49.0"},"reference-count":23,"publisher":"The Company of Biologists","issue":"1","license":[{"start":{"date-parts":[[1980,10,1]],"date-time":"1980-10-01T00:00:00Z","timestamp":339206400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/www.biologists.com\/user-licence-1-1\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1980,10,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n               <jats:p>Ventilatory parameters of mute swans were measured at thermoneutral conditions and during heat stress. Deep body temperature increased from 39\u00b75 to 41\u00b71 \u00b0C. Breathing frequency increased 29 times, compared to the thermoneutral condition. Tidal volume decreased to 18 % of the pre-panting value, and the total ventilatory volume increased by 5\u00b74 times. End-tidal and , values decreased and increased, respectively.<\/jats:p>\n               <jats:p>The swans developed a slight respiratory alkalosis; arterial decreased from an average of 27\u00b71 to 25\u00b77 mmHg and arterial pH increased from 7\u00b7501 to 7\u00b7559<\/jats:p>\n               <jats:p>Cardiac output, heart rate and stroke volume were 106%, 154%, and 70%, respectively, of the values at thermoneutrality. Mean arterial blood pressure and total peripheral resistance were slightly reduced.<\/jats:p>\n               <jats:p>It is concluded that the increased ventilation during panting mainly constitutes dead space ventilation resulting from the great reduction in tidal volume. Parabronchial ventilation remains nearly unchanged, resulting in only a slight hypocapnic alkalosis.<\/jats:p>","DOI":"10.1242\/jeb.88.1.195","type":"journal-article","created":{"date-parts":[[2021,4,25]],"date-time":"2021-04-25T15:18:21Z","timestamp":1619363901000},"page":"195-204","source":"Crossref","is-referenced-by-count":24,"title":["Ventilatory and Circulatory Responses to Hyperthermia in the Mute Swan (<i>Cygnus Olor<\/i>)"],"prefix":"10.1242","volume":"88","author":[{"given":"C.","family":"Bech","sequence":"first","affiliation":[{"name":"University of Aarhus Department of Zoophysiology , , DK-8000 Aarhus C.,Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.","family":"Johansen","sequence":"additional","affiliation":[{"name":"University of Aarhus Department of Zoophysiology , , DK-8000 Aarhus C.,Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"237","published-online":{"date-parts":[[1980,10,1]]},"reference":[{"key":"2023092802022118600_JEXBIO_88_1_195C1","doi-asserted-by":"publisher","first-page":"313","DOI":"10.1086\/physzool.52.3.30155753","article-title":"Ventilation and expired gas composition in the flamingo, Phoenicopterus ruber, during normal respiration and panting","volume":"52","author":"Bech","year":"1979","journal-title":"Physiol. 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