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Sensibilité différentielle à l'oestradiol pour induire le pic pré ovulatoire de GnRH et le comportement sexuel: Comparaison entre brebis Ile de France et Romanov

Archive ouverte | Ben Said, S. | CCSD

*INRA-Bibliothèque PRC-37380 Nouzilly Diffusion du document : INRA-Bibliothèque PRC-37380 Nouzilly. National audience

Acute injection and chronic perfusion of kisspeptin elicit gonadotropins release but fail to trigger ovulation in the mare

Archive ouverte | Decourt, Caroline | CCSD

Kisspeptin has emerged as the most potent gonadotropin-releasing hormone (GnRH) secretagogue and appears to represent the penultimate step in the central control of reproduction. In the sheep, we showed that kisspeptin could be us...

Progesterone improves the maturation of male-induced preovulatory follicles in anoestrus ewes

Archive ouverte | Adib, Achraf | CCSD

The first ovulation induced by male effect in sheep during seasonal anoestrus usually results in the development of a short cycle that can be avoided by progesterone priming before ram introduction. In elucidating the involvement ...

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