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Abstract

Goat estrous and ovulatory responses to the "male effect" were characterized to determine the time range over which fertile ovulations occur after buck exposure. The results were used to explore the efficacy of different hormone-free artificial insemination (AI) protocols aimed at diminishing the...

Author(s)
Pellicer-Rubio, M. T.; Boissard, K.; Forgerit, Y.; Pougnard, J. L.; Bonné, J. L.; Leboeuf, B.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2016, 85, 5, pp 960-969
Abstract

Reproductive seasonality observed in all breeds of goats originating from temperate latitudes and in some breeds from subtropical latitudes can be controlled by artificial changes in photoperiod. Short days stimulate sexual activity, whereas long days inhibit it. This knowledge has allowed the...

Author(s)
Leboeuf, B.; Delgadillo, J. A.; Manfredi, E.; Piacère, A.; Clément, V.; Martin, P.; Pellicer-Rubio, M. T.; Boué, P.; Cremoux, R. de
Publisher
Institut National de la Recherche Agronomique, Versailles, France
Citation
INRA Productions Animales, 2008, 21, 5, pp 391-402
Abstract

This article describes the reproductive control of sheep, goats, pigs and cattle in organic farming systems to induce oestrus and ovulation and maximize the results of artificial insemination using natural methods (including using the male effect, photoperiod manipulation and weaning) and avoiding...

Author(s)
Pellicer-Rubio, M. T.; Ferchaud, S.; Freret, S.; Tournadre, H.; Fatet, A.; Boulot, S.; Pavie, J.; Leboeuf, B.; Bocquier, F.
Publisher
Institut National de la Recherche Agronomique, Paris, France
Citation
INRA Productions Animales, 2009, 22, 3, pp 255-270
Abstract

Artificial insemination (IA) of goats began in France in the early 1950s, almost simultaneously in Indre et Loire and Ardéche. In the context of small herds, the main motivation of farmers was first to use the AI breeding season, instead of raising goats. The technical possibility to modify the...

Author(s)
Leboeuf, B.; Boué, P.; Jenot, F.
Publisher
Société d'Ethnozootechnie, Clermont-Ferrand, France
Citation
Ethnozootechnie, 2012, No.93, pp 75-82
Abstract

Goats are spontaneously ovulating, polyoestrous animals. Oestrous cycles in goats are reviewed in this paper with a view to clarifying interactions between cyclical changes in tissues, hormones and behaviour. Reproduction in goats is described as seasonal; the onset and length of the breeding...

Author(s)
Fatet, A.; Pellicer-Rubio, M. T.; Leboeuf, B.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Animal Reproduction Science, 2011, 124, 3/4, pp 211-219
Abstract

Environmental influences on reproduction and semen production in the buck, the problem of interaction between seminal plasma and egg yolk or milk constituents in diluent, liquid storage and processing of semen for freezing are discussed. A review is given on the use of frozen-thawed semen for ...

Author(s)
Leboeuf, B.; Restall, B.; Salamon, S.
Citation
Animal Reproduction Science, 2000, 62, 1/3, pp 113-141
Abstract

The response to the male effect was studied in two Saânen and two Alpine flocks over 5 consecutive years. Adult male and female goats were exposed to artificial long days (16 h light and 8 h darkness, 16L:8D) in open barns for approximately 3 months (between December 1 and April 15) followed by a...

Author(s)
Pellicer-Rubio, M. T.; Leboeuf, B.; Bernelas, D.; Forgerit, Y.; Pougnard, J. L.; Bonné, J. L.; Senty, E.; Breton, S.; Brun, F.; Chemineau, P.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2008, 109, 1/4, pp 172-188
Abstract

In France, artificial insemination (AI) in sheep and goats is an essential tool for genealogy controls and the implementation of breeding schemes. Most goats and ewes are inseminated out of the breeding season to meet the needs in milk production. In sheep, 99% of the inseminations are realised...

Author(s)
Fatet, A.; Leboeuf, B.; Freret, S.; Druart, X.; Bodin, L.; Caillat, H.; David, I.; Palhière, I.; Boué, P.; Lagriffoul, G.
Publisher
Institut National de la Recherche Agronomique (INRA), Paris, France
Citation
15èmes Recontres autour des Recherches sur les Ruminants, Paris, les 3 et 4 décembre 2008, 2008, pp 355-358
Abstract

Standard artificial insemination (AI) using a speculum in dairy goats does not result in acceptable fertility rates in nulliparous does. An explanation might be the difficulties to pass the cervical canal in nulliparous females with the insemination gun, increasing the time needed for semen...

Author(s)
Houdeau, E.; Furstoss, V.; Forgerit, Y.; Bonné, J. L.; Leboeuf, B.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2008, 2, 10, pp 1496-1500
Abstract

605 indigenous Rwandan ♀ goats were given an FGA intravaginal sponge for 11 days, an injection of cloprostenol 48 h before sponge removal, and 200 or 300 IU PMSG 48 h before sponge removal or at the time of removal. The ♀♀ were given a single insemination of frozen semen 41 or 45 h after sponge...

Author(s)
Leboeuf, B.; Nercy, C.; Ruyter, T. de
Citation
Revue d'Élevage et de Médecine Vétérinaire des Pays Tropicaux, 1994, 47, 2, pp 240-243

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