000163100 001__ 163100
000163100 005__ 20251009145936.0
000163100 0247_ $$2doi$$a10.1080/1828051X.2025.2545373
000163100 0248_ $$2sideral$$a145589
000163100 037__ $$aART-2025-145589
000163100 041__ $$aeng
000163100 100__ $$aManenti, Isabella
000163100 245__ $$aHeart rate and heart rate variability in lambs, measured by biologgers, during transport and its relationship to basal cortisol concentration
000163100 260__ $$c2025
000163100 5060_ $$aAccess copy available to the general public$$fUnrestricted
000163100 5203_ $$aIn this study, we investigated the relationship between heart rate variability (HRV) and basal cortisol levels in lambs in the course of a short transport event. Fourteen lambs received a subcutaneously implanted biologger that was capable of recording body temperature (T) and HR at one-minute intervals. In addition, lambs wore collars that held triaxial accelerometers, which were used to record locomotor activity (LA) before and during transport (73 km). Saliva samples for cortisol measurements were collected 24 h and 4 h before transport and 1 h post-transport. Based on basal cortisol concentrations, lambs were assigned to one of two groups, low cortisol (LC) or high cortisol (HC). HR and HRV were measured at 1 h before, during, and 1 h after transport. Mean HR was similar at all three points, but HRV variables (SDNN and RMSSD) were higher (p < 0.01) during transport than they were 1 h before and 1 h after transport, particularly in the LC group. Accelerometry data revealed that the LC lambs displayed a lower (p < 0.001) LA than did the HC lambs before and during transport. In conclusion, lambs that had lower baseline cortisol levels were better adapted physiologically to the stress of transport, as reflected by their greater HRV response and calmer behaviour, than were those who had higher cortisol levels. Subcutaneous biologgers have been shown to be a powerful tool for detecting subtle physiological responses to stressors, even in situations where traditional markers such as HR or cortisol levels do not vary significantly.
000163100 536__ $$9info:eu-repo/grantAgreement/ES/DGA/A07-23R
000163100 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttps://creativecommons.org/licenses/by-nc/4.0/deed.es
000163100 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000163100 700__ $$0(orcid)0000-0003-2827-3054$$aAbecia, José A.$$uUniversidad de Zaragoza
000163100 700__ $$aViola, Irene
000163100 700__ $$aToschi, Paola
000163100 700__ $$aCanto, Francisco
000163100 700__ $$aMiretti, Silvia
000163100 7102_ $$12008$$2700$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Producción Animal
000163100 773__ $$g24, 1 (2025), 1774-1780$$pItal. J. Anim. Sci.$$tItalian Journal of Animal Science$$x1594-4077
000163100 8564_ $$s1350299$$uhttps://zaguan.unizar.es/record/163100/files/texto_completo.pdf$$yVersión publicada
000163100 8564_ $$s1100633$$uhttps://zaguan.unizar.es/record/163100/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000163100 909CO $$ooai:zaguan.unizar.es:163100$$particulos$$pdriver
000163100 951__ $$a2025-10-08-12:59:00
000163100 980__ $$aARTICLE