Physiological responses of Rasa Aragonesa ewes to water restriction

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dc.bibliographicCitation.titleJournal of Animal Science and Technologyen
dc.contributor.authorPérez Redondo, Saraes_ES
dc.contributor.authorCalvete Margolles, Carloses_ES
dc.contributor.authorJoy Torrens, Margalidaes_ES
dc.contributor.authorDomínguez Carrasco, Andréses_ES
dc.contributor.authorCalvo Lacosta, Jorge Hugoes_ES
dc.contributor.authorLobón Ascaso, Sandraes_ES
dc.date.accessioned2025-04-25T11:48:15Z
dc.date.available2025-04-25T11:48:15Z
dc.date.issued2025es_ES
dc.date.updated2025-04-25T11:43:59Z
dc.description.abstractGlobal climate change impacts livestock production, particularly in extensive or semi-extensive systems in semi-arid regions, due to the temperature increases and water scarcity. The aim of this study was to characterize the different physiological responses of Rasa Aragonesa ewes to water restriction. Two hundred and two ewes were challenged to total water restriction for 5 days. Temperature and relative humidity were measured to calculate the temperature-humidity index (THI). According to the THI, ewes were also under heat stress conditions. Daily, dry matter intake (DMI), body weight (BW) and body condition score (BCS) were also recorded. Blood samples were collected on days 0, 1 and 5. Wool samples were collected on days 0 and 28. Blood samples were used for classic hematological and some biochemical parameters (total proteins, glucose, NEFAs, cortisol, dehydroepiandrosterone (DHEA), and its sulphate (DHEA-S)). In the wool cortisol, DHEA and DHEA-S were also measured. Principal component analysis (PCA) and hierarchical clustering (HC) were carried out to classify ewes according to their stress response. DMI, BW and BCS significantly lowered during the water stress period (<italic>p</italic> < 0.05). Most hematological and biochemical parameters were affected (<italic>p</italic> < 0.05), except for blood cortisol and the blood cortisol:DHEA-S ratio (<italic>p</italic> > 0.05). After HC analysis, ewes were classified into three clusters based on their stress tolerance. Cluster 1 (C1, n=168) included the most tolerant ewes, followed by Cluster 2 (C2, n=22) and Cluster 3 (C3, n=12), which was the least tolerant. The C3 ewes had the highest blood cortisol and non-esterified fatty acid mobilization, which were associated with the greatest BW loss. In conclusion, the stress conditions affected hematological and biochemical parameters in blood and wool. The majority of Rasa Aragonesa ewes generally demonstrated good tolerance to these stressors (C1, n=168), with only 34 ewes classified as less tolerant.en
dc.description.othersheepen
dc.description.otherperformanceen
dc.description.otherhematologyen
dc.description.otherwelfareen
dc.description.otherbiochemistryes_ES
dc.description.sponsorshipEste trabajo fue apoyado por el Ministerio de Ciencia e Innovación de España (PID2020-114466RR-I00) y los fondos del grupo de investigación del Gobierno de Aragón (A25_23R). S. Pérez-Redondo tiene una beca doctoral de la AEI (PRE2021-099071).es_ES
dc.description.statusIn presses_ES
dc.identifier.citationPérez-Redondo, S., Calvete, C., Joy, M., Domínguez, A., Calvo, J. H., & Lobón, S. (2025). Physiological responses of Rasa Aragonesa ewes to water restriction. Journal of Animal Science and Technology. https://doi.org/10.5187/jast.2025.e23
dc.identifier.issn20550391
dc.identifier.urihttp://hdl.handle.net/10532/7589
dc.language.isoenes_ES
dc.relation.doihttps://doi.org/10.5187/jast.2025.e23es_ES
dc.relation.urihttps://doi.org/10.5187/jast.2025.e23es_ES
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs 4.0es_ES
dc.subject.agrovocOvinoses
dc.subject.agrovocPruebas de rendimientoes
dc.subject.agrovocBienestar animales
dc.subject.agrovocHematologiaes
dc.subject.agrovocBioquímicaes
dc.subject.otherBienestar animal
dc.subject.otherBioquímica
dc.subject.otherHematología
dc.subject.otherOvinos
dc.subject.otherPruebas De Rendimiento
dc.titlePhysiological responses of Rasa Aragonesa ewes to water restrictionen
dc.typeJournal Contribution*
dc.type.refereedRefereedes_ES
dc.type.specifiedArticlees_ES

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