000135774 001__ 135774
000135774 005__ 20250923084423.0
000135774 0247_ $$2doi$$a10.1016/j.animal.2024.101179
000135774 0248_ $$2sideral$$a138776
000135774 037__ $$aART-2024-138776
000135774 041__ $$aeng
000135774 100__ $$aLópez-Magaña, N.
000135774 245__ $$aPhysical separation and reduction of contact duration with sexually hyperactive bucks decrease testosterone concentrations and sexual behaviour in bucks in sexual rest
000135774 260__ $$c2024
000135774 5060_ $$aAccess copy available to the general public$$fUnrestricted
000135774 5203_ $$aSexually hyperactive bucks are more efficient than sexually hypoactive bucks in stimulating testosterone secretion and sexual behaviour in other bucks in seasonal sexual rest by the phenomenon that we called the “buck-to-buck effect”. Here, we determined whether physical separation and reduction of the duration of contact with the sexually hyperactive bucks would modify those parameters in sexually hypoactive bucks exposed to the “buck-to-buck effect”. Bucks were subjected to natural day length throughout the study; this was the sexually hypoactive group. Other bucks were subjected to artificial long days (16 h of light per day) from 15 November to 15 January followed by exposure to natural day length to stimulate their sexual activity during the rest season; this was the sexually hyperactive group. In Experiment 1, we determined testosterone concentrations and sexual behaviour of six sexually hypoactive bucks separated 1.5 m from six sexually hyperactive bucks for 60 days by a metal open work fence, while a control group of six sexually hypoactive bucks was in permanent contact with six sexually hyperactive bucks. In Experiment 2, the duration of contact with sexually hyperactive males was reduced from 31 days (contact group, six bucks) to 10 days (withdraw group, seven bucks). In experiments 1 and 2, there was an effect of time (P < 0.01) and an interaction between time and groups (P < 0.05). In Experiment 1, testosterone plasma concentrations were greater in bucks in contact with sexually hyperactive bucks than in those separated from bucks at 20 and 30 days after the introduction of sexually hyperactive bucks (P < 0.01). The bucks from the contact group also displayed more nudging than bucks from the separated group from 0 to 30 days (P < 0.001). In Experiment 2, testosterone concentrations were greater in the contact group than in those from the withdraw group from 19 to 31 days after the introduction of sexually hyperactive bucks (P < 0.05). Bucks from the withdraw group displayed more nudging than the contact group 7 days after the introduction of the sexually hyperactive bucks (P < 0.05). Afterwards, bucks from the contact group displayed more nudging than the withdraw group 14, 21 and 28 days after the introduction of the sexually hyperactive bucks. We concluded that physical separation and reduction of the duration of contact with the sexually hyperactive bucks decrease testosterone concentrations and sexual behaviour of bucks in sexual rest exposed to the “buck-to-buck effect”.
000135774 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000135774 590__ $$a4.2$$b2024
000135774 592__ $$a1.04$$b2024
000135774 591__ $$aVETERINARY SCIENCES$$b7 / 170 = 0.041$$c2024$$dQ1$$eT1
000135774 593__ $$aAnimal Science and Zoology$$c2024$$dQ1
000135774 591__ $$aAGRICULTURE, DAIRY & ANIMAL SCIENCE$$b5 / 86 = 0.058$$c2024$$dQ1$$eT1
000135774 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000135774 700__ $$aTejada, L.M.
000135774 700__ $$aLópez-Magaña, D.
000135774 700__ $$aHernández, H.
000135774 700__ $$aFlores, M.J.
000135774 700__ $$aVielma, J.
000135774 700__ $$0(orcid)0000-0003-2827-3054$$aAbecia, J.A.$$uUniversidad de Zaragoza
000135774 700__ $$aKeller, M.
000135774 700__ $$aChemineau, P.
000135774 700__ $$aDelgadillo, J.A.
000135774 7102_ $$12008$$2700$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Producción Animal
000135774 773__ $$g18, 6 (2024), 101179 [6 pp.]$$pAnimal$$tANIMAL$$x1751-7311
000135774 8564_ $$s389361$$uhttps://zaguan.unizar.es/record/135774/files/texto_completo.pdf$$yVersión publicada
000135774 8564_ $$s2742838$$uhttps://zaguan.unizar.es/record/135774/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000135774 909CO $$ooai:zaguan.unizar.es:135774$$particulos$$pdriver
000135774 951__ $$a2025-09-22-14:37:44
000135774 980__ $$aARTICLE