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Akademický článek

Emploi des implants de mélatonine et des traitements photopériodiques pour maîtriser la reproduction saisonnière chez les ovins et les caprins

Autor: P. CHEMINEAU, B. MALPAUX, J. PELLETIER, B. LEBOEUF, J.A. DELGADILLO, F. DELETANG, T. POBEL, G. BRICE

Publikováno v: INRAE Productions Animales, Vol 9, Iss 1 (1996)

La mélatonine est une substance naturellement sécrétée par la glande pinéale pendant la période obscure du nycthémère, qui transmet l’information photopériodique chez les mammifères. L’administration continue par un implant sous-cutané

Externí odkaz: https://doaj.org/article/0028b89ef73743c28ed80cf9d6020f34

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Post partum suboestrus in dairy cows : comparison of treatment with prostaglandin F2α or GnRH + prostaglandin F2α + GnRH

Autor: C. Ponsart, F. Deletang, A. A. Ponter, H. Fauxpoint, E. Barassin, G. Laumonnier, J.P. Mialot, B. Grimard

Publikováno v: BSAP Occasional Publication. 26:347-352

Two studies (expt. 1, 185 cows in 1996/97; expt. 2, 168 cows in 1997/98) were conducted with Prim ‘Holstein dairy cows in the Mayenne region (France) to investigate suboestrus. Cows which had not been observed in oestrus since calving were allocate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::31ef36ac19bf196fccfab02df51ffa25
https://doi.org/10.1017/s0263967x00033887

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Milk urea concentrations and pregnancy rate in dairy cows and a comparison of a dip-stick method and a laboratory method to measure milk urea concentrations

Autor: C. Ficheux, J.P. Mialot, A. A. Ponter, B. Grimard, F. Deletang, J.-M. Beduneau

Publikováno v: BSAP Occasional Publication. 26:363-366

The first study was conducted to investigate the possible relationship between milk urea concentrations and pregnancy rate in dairy cows. A total of 173 dairy cows were used in the study. They had not experienced reproductive problems post partum, ho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d8cc47726f5ad41747404f1fd39f801
https://doi.org/10.1017/s0263967x00033917

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Effects of administration of growth hormone-releasing factor to sows during late gestation on growth hormone secretion, reproductive traits, and performance of progeny from birth to 100 kilograms live weight

Autor: Michel Etienne, F Deletang, Michel Bonneau, G Kann

Publikováno v: Journal of Animal Science. 70:2212-2220

The effects of growth hormone-releasing factor (GHRF) injections to sows during late gestation were investigated in two experiments. In the first one, four treatments were applied to eight catheterized sows according to two 4 x 4 Latin squares: oral

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0defdd0a19170c244444317224e46f20
https://doi.org/10.2527/1992.7072212x

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Estrus synchronization in beef cows: comparison between GnRH+PGF2alpha+GnRH and PRID+PGF2alpha+eCG

Autor: F. Deletang, P. Dezaux, A. A. Ponter, F. Constant, B. Grimard, J.P. Mialot

Publikováno v: Theriogenology. 60(2)

The aim of this study was to compare two protocols for estrus synchronization in suckled beef cows over a 2 years period. The population studied consisted of 172 Charolais and 168 Limousin cows from 12 and 14 beef herds, respectively. In each herd, c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::691d27393baaae9351147671b179fea0
https://pubmed.ncbi.nlm.nih.gov/12749945

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Effect of post-insemination supplementation with PRID on pregnancy in repeat-breeder Holstein cows

Autor: William M. Sischo, Robert Bondurant, Aurora Villarroel, F. Deletang, Alex Martino

Publikováno v: Theriogenology. 61(7-8)

Embryonic mortality contributes to repeat-breeding in dairy cows; luteal insufficiency is a known cause of embryonic mortality. The objective of this study was to assess the efficacy of supplementation with exogenous progesterone for 14 days on pregn

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d823d08c15e9971a006da85225aa0f8
https://pubmed.ncbi.nlm.nih.gov/15036981

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Postpartum subestrus in dairy cows: comparison of treatment with prostaglandin F2 alpha or GnRH + prostaglandin F2 alpha + GnRH

Autor: Claire Ponsart, E. Barassin, H. Fauxpoint, G. Laumonnier, A. A. Ponter, J.P. Mialot, F. Deletang

Publikováno v: Theriogenology. 52(5)

Two experiments (Experiment 1, 185 cows in 1996/97; Experiment 2, 168 cows in 1997/98) were conducted with Prim Holstein dairy cattle in the Mayenne region of France to investigate subestrus. Cows which had not been observed in estrus since calving w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68b27e24859e9a4291c012a6ef2afc55
https://pubmed.ncbi.nlm.nih.gov/10735129

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The fertility of autumn calving suckler beef cows is increased by the addition of prostaglandin to progesterone and eCG estrus synchronization treatment

Autor: Claire Ponsart, F. Deletang, J.P. Mialot, J.-L. Bihoreau, Ch. Gipoulou, M.-E. Roux

Publikováno v: Theriogenology. 49(7)

The objective of this study was to determine the efficacy of PGF2α treatment on pregnancy and calving rates in autumn-calving suckler beef cows synchronized with progesterone and eCG. The population studied consisted of 124 Charolais and 130 Limousi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0b4817a93f9277694d42706de5e726e
https://pubmed.ncbi.nlm.nih.gov/10732072

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Use of melatonin implants and photoperiodic treatments to control seasonal reproduction in sheep and goats

Autor: F. Deletang, B. Malpaux, T. Pobel, G. Brice, P. Chemineau, Bernard Leboeuf, J.A. Delgadillo, J. Pelletier

Publikováno v: Productions Animales 1 (9), 45-60. (1996)
Productions animales
Productions animales, Institut National de la Recherche Agronomique, 1996, 9 (1), pp.45-60

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::682b83b65d102694dbc405b2109484d4
http://prodinra.inra.fr/record/125116

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