Výsledky vyhledávání - "Claude Fabre-Nys"

Akademický článek

The 'Ram Effect': A 'Non-Classical' Mechanism for Inducing LH Surges in Sheep.

Autor: Claude Fabre-Nys, Audrey Chanvallon, Joëlle Dupont, Lionel Lardic, Didier Lomet, Stéphanie Martinet, Rex J Scaramuzzi

Publikováno v: PLoS ONE, Vol 11, Iss 7, p e0158530 (2016)

During spring sheep do not normally ovulate but exposure to a ram can induce ovulation. In some ewes an LH surge is induced immediately after exposure to a ram thus raising questions about the control of this precocious LH surge. Our first aim was to

Externí odkaz: https://doaj.org/article/b50a957448dd4d5a9bef8f8ebd78ea44

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Ovarian parameters and fertility of dairy cows selected for one QTL located on BTA3

Autor: Sébastien Fritz, Stéphanie Coyral-Castel, Sandrine Freret, Christelle Ramé, Philippe Monget, Francis Dupont, Claude Fabre-Nys, Joëlle Dupont, Danielle Monniaux

Publikováno v: Theriogenology
Theriogenology, Elsevier, 2011, 75 (7), pp.1239-1250. ⟨10.1016/j.theriogenology.2010.11.037⟩

Recently, one Quantitative Trait Locus (QTL) of female fertility located on Bos Taurus chromosome 3 (BTA3), QTL-F-Fert-BTA3, has been identified in Holstein breed. It is implied in the success rate after the first AI (AI1) in cow. The failure of preg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::deaa23003c1240622a913bc34d64b448
https://doi.org/10.1016/j.theriogenology.2010.11.037

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Noradrenaline concentrations in the hypothalamus of anoestrus ewes following the ram-induced luteinizing hormone release

Autor: Claude Fabre-Nys, Keith M. Kendrick

Publikováno v: NeuroReport
NeuroReport, Lippincott, Williams & Wilkins, 2015, 26 (7), pp.438-443. ⟨10.1097/WNR.0000000000000367⟩

Remerciements : INRA, UMR PRC 0085, Plateforme Chirurgie et Imagerie pour la Recherche et l’Enseignement (CIRE), Centre Tours Val de Loire, 37380 Nouzilly; Sheep are seasonal breeders, but exposure of anoestrus ewes to rams results in a rapid incre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e448c1f5a95a0585ca47843d31d635b
https://hal.archives-ouvertes.fr/hal-01353277

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The 'ram effect': new insights into neural modulation of the gonadotropic axis by male odors and socio-sexual interactions

Autor: Keith M. Kendrick, Claude Fabre-Nys, Rex J. Scaramuzzi

Publikováno v: Frontiers in Neuroscience
Frontiers in Neuroscience, Frontiers, 2015, 9, pp.1-16. ⟨10.3389/fnins.2015.00111⟩
Frontiers in Neuroscience, Vol 9 (2015)
Frontiers in Neuroscience (9), 1-16. (2015)

Reproduction in mammals is controlled by the hypothalamo-pituitary-gonadal (HPG) axis under the influence of external and internal factors such as photoperiod, stress, nutrition, and social interactions. Sheep are seasonal breeders and stop mating wh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f2ec8bf5665875692278d1de54aaf60
https://hal.archives-ouvertes.fr/hal-01157915

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Le comportement sexuel des caprins : contrôle hormonal et facteurs sociaux

Autor: Claude Fabre-Nys

Publikováno v: Productions Animales 1 (13), 11-23. (2000)
Productions animales
Productions animales, Institut National de la Recherche Agronomique, 2000, 13 (1), pp.11-23

Chez les caprins, comme dans la plupart des espèces, l’expression du comportement sexuel dépend à la fois de facteurs internes notament le taux d’hormones stéroides, et externes. Chez le bouc, le niveau d’activité sexuelle fluctue au cours

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7248b79cf27eca57bb63e294d67b13fe
https://doi.org/10.20870/productions-animales.2000.13.1.3764

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Gonadotropin-inhibitory hormone is a hypothalamic peptide that provides a molecular switch between reproduction and feeding

Autor: Claude Fabre-Nys, Gregory S. Fraley, Beng Ti Ang, Alain Caraty, Louiza Chan, Keefe Chng, Iain J. Clarke, Belinda A. Henry, Aneta Stefanidis, Jeremy Troy Smith, Robert P. Millar, Brian J. Oldfield, Ika Puspita Sari

Publikováno v: Neuroendocrinology
Neuroendocrinology, Karger, 2012, 95 (4), pp.305-316. ⟨10.1159/000332822⟩

Objective: Gonadotropin-inhibitory hormone (GnIH)-3 is a neuropeptide that plays a major role in the regulation of reproduction and feeding in mammals. Materials and Methods: We measured endocrine and behavioural parameters of reproduction in sheep,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3a1f3336c587e96da6715b348324903
https://hal.archives-ouvertes.fr/hal-01129635

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L'utilisation des hormones en élevage : les développements zootechniques et les préocupations de santé publique

Publikováno v: Hormones, santé publique et environnement. Rapport sur la science et la technologie
Hormones, santé publique et environnement. Rapport sur la science et la technologie, Numéro 28, EDP Sciences, 2008, Rapport sur la Science et la Technologie, 978-2-86883-895-7
Hormones, santé publique et environnement. Rapport sur la science et la technologie, EDP Sciences, 2008, Rapport sur la Science et la Technologie, 978-2-86883-895-7
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Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4543fd7566b4151ab8e25444147021ca
https://hal.science/hal-01173447

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Regulation by Estradiol of Hypothalamic Somatostatin Gene Expression: Possible Involvement of Somatostatin in the Control of Luteinizing Hormone Secretion in the Ewe

Autor: Gilles Bruneau, Claude Fabre-Nys, Didier Lomet, Delphine Pillon, Alain Caraty, Marilyn Cateau

Publikováno v: Biology of Reproduction
Biology of Reproduction, Society for the Study of Reproduction, 2004, 71 (1), pp.38-44. ⟨10.1095/biolreprod.103.023689⟩
Biology of Reproduction, Society for the Study of Reproduction, 2004, 71, pp.38-44

In the ewe, the mediobasal hypothalamus (MBH) is the primary central site for estradiol to generate the preovulatory GnRH/LH surges and sexual behavior. This area contains numerous neurons expressing the estradiol receptor alpha, distributed in the v

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2de6bec2560c86b7efbbed8b8641b45
https://hal.inrae.fr/hal-03157344

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Sequential role of e2 and GnRH for the expression of estrous behavior in ewes

Autor: D. Chesneau, Bernadette Delaleu, Alain Caraty, Claude Fabre-Nys

Publikováno v: Endocrinology
Endocrinology, Endocrine Society, 2002, 143 (1), pp.139-145

Preovulatory GnRH secretion in ewes, measured in portal blood and cerebrospinal fluid, starts at the time of the LH surge, approximately 4 h after the onset of estrous behavior, and lasts as long as receptivity (36-48 h), which is much longer than th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::febd8c1478b39a5bf1cc6bbc7b179120
https://pubmed.ncbi.nlm.nih.gov/11751602

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Inhibition of sexual behaviour and the luteinizing hormone surge by intracerebral progesterone implants in the female sheep

Autor: Claude Fabre-Nys, Gerard Venier, Dominique Blache

Publikováno v: Brain Research
Brain Research, Elsevier, 1996, 741, pp.117-122

In female sheep, progesterone blocks the induction by oestradiol of both sexual behaviour and the pre-ovulatory surges of gonadotrophin releasing hormone (GnRH) and luteinising hormone (LH). However, the central sites of action of progesterone remain

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1af6aff446933baaf6b4dd7b4f609b6e
https://hal.inrae.fr/hal-02687385

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