Development of social familiarity in ewes
作者： Matthieu Keller , Fabien Cornilleau , Eric Archer , Frédéric Lévy
DOI: 10.1016/J.PHYSBEH.2011.04.030
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摘要: We assessed the development of individual discrimination resulting from direct contact/familiarization in ewes. Unfamiliar ewes were introduced during 6, 24 or 72 h groups already familiarized At end this contact period, social recognition with animal that has been was using two different types tests: a Y-maze preference test and delayed paired close encounters where tested are successively randomly interacting familiar an unfamiliar conspecific. The results both tests showed developed comparison to completely female. However, evidenced after when whereas it appears only test, suggesting is more sensitive methodology assess familiarization. importance estrogens, formation familiarization also evaluated. To end, compared between ovariectomized animals receiving estrogen implants not. Despite significant high levels estradiol implanted females, no major differences appeared groups, our conditions estrogens do not have influence on
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