000151661 001__ 151661
000151661 005__ 20250319155217.0
000151661 0247_ $$2doi$$a10.1016/j.atech.2025.100869
000151661 0248_ $$2sideral$$a143327
000151661 037__ $$aART-2025-143327
000151661 041__ $$aeng
000151661 100__ $$0(orcid)0000-0003-2827-3054$$aAbecia, José A.$$uUniversidad de Zaragoza
000151661 245__ $$aWeaning reduces body temperature and heart rate, and increases heart rate variability in ewes
000151661 260__ $$c2025
000151661 5060_ $$aAccess copy available to the general public$$fUnrestricted
000151661 5203_ $$aWeaning elicits strong responses in ewes and lambs, which makes it a significant welfare concern; however, limited and sometimes contradictory information is available on the physiological responses of dams at weaning. The aim of this study was to quantify the physiological changes in ewes that occur after weaning. Four days before weaning (d0), eleven lactating Rasa Aragonesa ewes received a surgically implanted subcutaneous body temperature (BT) and heart rate (HR) biologger that had been programmed to take measurements every 15 min from d2 to d3. HR variability (HRV) variables were calculated based on the raw ECG data that were recorded every 5 min between 1700 and 1900 h. At 1130 h on the day of weaning, ewes and lambs were separated and housed in different barns. In the lactation period, ewes were fed a concentrate ration (1 kg of pellets) that was offered at 0800 h, 1 kg alfalfa hay, and barley straw ad libitum. After weaning, ewes were fed 0.5 kg barley straw, only. After weaning, BT and HR decreased gradually (P < 0.001), and HRV variables (SDNN and RMSSD) increased significantly (P < 0.001). The reductions in BT and HR in ewes after weaning seemed to be caused by the management procedures (detention of lactation and drastic reduction in feed offered) usually applied at weaning; however, the increase in HRV after weaning indicated recovery from stress, improved autonomic regulation, and welfare. HRV data collected by subcutaneous biologgers provided valuable insights into the physiological and emotional well-being of ewes at weaning.
000151661 536__ $$9info:eu-repo/grantAgreement/EC/HORIZON EUROPE/101136346/EU/European Partnership Animal health and Welfare/EUPAHW
000151661 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000151661 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000151661 700__ $$aCanto, Francisco
000151661 700__ $$aViola, Irene
000151661 700__ $$aManenti, Isabella
000151661 700__ $$aToschi, Paola
000151661 700__ $$aMiretti, Silvia
000151661 7102_ $$12008$$2700$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Producción Animal
000151661 773__ $$g10 (2025), 100869 [7 pp.]$$tSmart agricultural technology$$x2772-3755
000151661 8564_ $$s9075017$$uhttps://zaguan.unizar.es/record/151661/files/texto_completo.pdf$$yVersión publicada
000151661 8564_ $$s2614301$$uhttps://zaguan.unizar.es/record/151661/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000151661 909CO $$ooai:zaguan.unizar.es:151661$$particulos$$pdriver
000151661 951__ $$a2025-03-19-14:20:17
000151661 980__ $$aARTICLE