No data have been published on the use of infrared thermography (IRT) to evaluate sheep emotions. We assessed whether this technique can be used as a non-invasive measure of negative emotions. Two voluntary animal approach (VAA) tests were conducted (and filmed) on five ewes before and after being restrained. The restraining process was performed by a handler for five minutes. IRT was used during restraint and the VAA tests. The lacrimal caruncle temperature was significantly higher during restraint and in the VAA test after the restraint compared with the VAA test before the restraint (Wilcoxon’s test; p = 0.04). The latency period until first contact was longer in the second VAA test (132 s) than in the first one (60 s). Our preliminary results suggest that IRT, combined with behavioral data, is a non-invasive technique that can be useful to assess stress and infer about negative emotions in sheep.

Thermography as a non-invasive measure of stress and fear of humans in sheep / S. Cannas, C. Palestrini, E. Canali, B. Cozzi, N. Ferri, E.U.L. Heinzl, M. Minero, M. Chincarini, G. Vignola, E. Dalla Costa. - In: ANIMALS. - ISSN 2076-2615. - 8:9(2018 Sep), pp. 146.1-146.7. [10.3390/ani8090146]

Thermography as a non-invasive measure of stress and fear of humans in sheep

S. Cannas
Primo
;
C. Palestrini
Secondo
;
E. Canali;E.U.L. Heinzl;M. Minero;M. Chincarini;E. Dalla Costa
Ultimo
2018-09

Abstract

No data have been published on the use of infrared thermography (IRT) to evaluate sheep emotions. We assessed whether this technique can be used as a non-invasive measure of negative emotions. Two voluntary animal approach (VAA) tests were conducted (and filmed) on five ewes before and after being restrained. The restraining process was performed by a handler for five minutes. IRT was used during restraint and the VAA tests. The lacrimal caruncle temperature was significantly higher during restraint and in the VAA test after the restraint compared with the VAA test before the restraint (Wilcoxon’s test; p = 0.04). The latency period until first contact was longer in the second VAA test (132 s) than in the first one (60 s). Our preliminary results suggest that IRT, combined with behavioral data, is a non-invasive technique that can be useful to assess stress and infer about negative emotions in sheep.
Fear; Handling; Sheep; Stress; Thermography; Animal Science and Zoology; Veterinary (all)
Settore AGR/19 - Zootecnica Speciale
approach to the investigation of cerebral activity in domestic animals using functional near-infrared spectroscopy: Implications on animal welfare and on comparative system and cognitive neuroscience.
Article (author)
File in questo prodotto:
File Dimensione Formato  
Thermography as a Non-Invasive Measure of Stress and Fear of Humans in Sheep.pdf

accesso aperto

Tipologia: Publisher's version/PDF
Dimensione 796.86 kB
Formato Adobe PDF
796.86 kB Adobe PDF Visualizza/Apri
Termography Post print.pdf

accesso aperto

Tipologia: Post-print, accepted manuscript ecc. (versione accettata dall'editore)
Dimensione 667.93 kB
Formato Adobe PDF
667.93 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/618167
Citazioni
  • ???jsp.display-item.citation.pmc??? 13
  • Scopus 20
  • ???jsp.display-item.citation.isi??? 19
social impact