000165296 001__ 165296
000165296 005__ 20251219174252.0
000165296 0247_ $$2doi$$a10.1016/j.smallrumres.2025.107679
000165296 0248_ $$2sideral$$a146986
000165296 037__ $$aART-2025-146986
000165296 041__ $$aeng
000165296 100__ $$aPérez-García, Elena
000165296 245__ $$aAssessment of sexual activity in rams stimulated with artificial light and its impact on unstimulated rams during the initial 14 days of male effect
000165296 260__ $$c2025
000165296 5060_ $$aAccess copy available to the general public$$fUnrestricted
000165296 5203_ $$aSeasonal anoestrous reduces reproductive efficiency in sheep in temperate regions. Artificial photoperiod manipulation is a non-hormonal approach that stimulates ram sexual activity and enhances the "ram effect" on ewes. This study evaluated the sexual behaviour of rams subjected to artificial long-day photoperiods (L group) and their effect on non-stimulated rams (C group) during the first 14 days after introduction to anoestrous ewes. Eleven rams were assigned to photostimulated (n = 6) or control (n = 5) treatments, forming four groups: L, C, L+C (stimulated rams exposed to controls), and C+L (controls exposed to stimulated rams). Continuous video recording documented 5707 behavioural events. Photostimulated rams (L) exhibited higher activity (mean = 747.7 behaviours/ram) than other groups (C+L: 519.5; L+C: 443.0; C: 365.3; p < 0.01), with anogenital sniffing, approaching and chasing ewes being the most frequent behaviours. Activity peaked on days 2–5 post-introduction, mainly in the afternoon. Control rams housed with stimulated rams were more active than isolated controls, suggesting a social facilitation effect. These findings confirm that photoperiod manipulation enhances ram sexual activity and may influence non-stimulated rams through social interaction, as the different groups of animals exhibited distinct types and amounts of activity
000165296 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000165296 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000165296 700__ $$aNieto, Jaime
000165296 700__ $$0(orcid)0000-0003-2827-3054$$aAbecia, José Alfonso$$uUniversidad de Zaragoza
000165296 700__ $$aPlaza, Javier
000165296 700__ $$aPalacios, Carlos
000165296 7102_ $$12008$$2700$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Producción Animal
000165296 773__ $$g255 (2025), 107679$$pSmall rumin. res.$$tSmall Ruminant Research$$x0921-4488
000165296 8564_ $$s1923313$$uhttps://zaguan.unizar.es/record/165296/files/texto_completo.pdf$$yVersión publicada
000165296 8564_ $$s2722774$$uhttps://zaguan.unizar.es/record/165296/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000165296 909CO $$ooai:zaguan.unizar.es:165296$$particulos$$pdriver
000165296 951__ $$a2025-12-19-14:44:37
000165296 980__ $$aARTICLE