Does combining estradiol cypionate and GnRH for ovulation induction in recipient cows increase pregnancy rate after timed embryo transfer?

Estradiol cypionate (EC) or GnRH have been widely used for ovulation induction in timed embryo transfer (TET). EC administration increases the proportion of cows that show estrus, whereas GnRH promotes more synchronized ovulations. The aim of the present study was to evaluate the potential beneficia...

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Autores principales: Lima, Wagner Marques, de Moraes, Fabiane Pereira, Ferreira, Rogério, Mondadori, Rafael Gianella, Vieira, Arnaldo Diniz, Knabah, Nathália Wacholz, Lima, Danylo Cintra Medeiros, Rovani, Monique Tomazele, Pfeifer, Luiz Francisco Machado, Gonçalves, Paulo Bayard Dias, Gasperin, Bernardo Garziera
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Colégio Brasileiro de Reprodução Animal 2022
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9575387/
https://www.ncbi.nlm.nih.gov/pubmed/36277483
http://dx.doi.org/10.1590/1984-3143-AR2022-0067
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author Lima, Wagner Marques
de Moraes, Fabiane Pereira
Ferreira, Rogério
Mondadori, Rafael Gianella
Vieira, Arnaldo Diniz
Knabah, Nathália Wacholz
Lima, Danylo Cintra Medeiros
Rovani, Monique Tomazele
Pfeifer, Luiz Francisco Machado
Gonçalves, Paulo Bayard Dias
Gasperin, Bernardo Garziera
author_facet Lima, Wagner Marques
de Moraes, Fabiane Pereira
Ferreira, Rogério
Mondadori, Rafael Gianella
Vieira, Arnaldo Diniz
Knabah, Nathália Wacholz
Lima, Danylo Cintra Medeiros
Rovani, Monique Tomazele
Pfeifer, Luiz Francisco Machado
Gonçalves, Paulo Bayard Dias
Gasperin, Bernardo Garziera
author_sort Lima, Wagner Marques
collection PubMed
description Estradiol cypionate (EC) or GnRH have been widely used for ovulation induction in timed embryo transfer (TET). EC administration increases the proportion of cows that show estrus, whereas GnRH promotes more synchronized ovulations. The aim of the present study was to evaluate the potential beneficial effects of combining EC and GnRH in TET. In experiment 1, no difference was observed on serum progesterone concentrations on Day 6 and 13 after GnRH treatment between GnRH and EC+GnRH groups. In experiment 2, pregnancy per embryo transfer (P/ET) did not differ (p = 0.69) between GnRH (62.8%) and EC+GnRH (58.7%) groups. In conclusion, combining EC and GnRH for ovulation induction does not increase progesterone secretion and pregnancy rate after TET in cattle.
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spelling pubmed-95753872022-10-21 Does combining estradiol cypionate and GnRH for ovulation induction in recipient cows increase pregnancy rate after timed embryo transfer? Lima, Wagner Marques de Moraes, Fabiane Pereira Ferreira, Rogério Mondadori, Rafael Gianella Vieira, Arnaldo Diniz Knabah, Nathália Wacholz Lima, Danylo Cintra Medeiros Rovani, Monique Tomazele Pfeifer, Luiz Francisco Machado Gonçalves, Paulo Bayard Dias Gasperin, Bernardo Garziera Anim Reprod Short Communication Estradiol cypionate (EC) or GnRH have been widely used for ovulation induction in timed embryo transfer (TET). EC administration increases the proportion of cows that show estrus, whereas GnRH promotes more synchronized ovulations. The aim of the present study was to evaluate the potential beneficial effects of combining EC and GnRH in TET. In experiment 1, no difference was observed on serum progesterone concentrations on Day 6 and 13 after GnRH treatment between GnRH and EC+GnRH groups. In experiment 2, pregnancy per embryo transfer (P/ET) did not differ (p = 0.69) between GnRH (62.8%) and EC+GnRH (58.7%) groups. In conclusion, combining EC and GnRH for ovulation induction does not increase progesterone secretion and pregnancy rate after TET in cattle. Colégio Brasileiro de Reprodução Animal 2022-10-17 /pmc/articles/PMC9575387/ /pubmed/36277483 http://dx.doi.org/10.1590/1984-3143-AR2022-0067 Text en Copyright © The Author(s). https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Short Communication
Lima, Wagner Marques
de Moraes, Fabiane Pereira
Ferreira, Rogério
Mondadori, Rafael Gianella
Vieira, Arnaldo Diniz
Knabah, Nathália Wacholz
Lima, Danylo Cintra Medeiros
Rovani, Monique Tomazele
Pfeifer, Luiz Francisco Machado
Gonçalves, Paulo Bayard Dias
Gasperin, Bernardo Garziera
Does combining estradiol cypionate and GnRH for ovulation induction in recipient cows increase pregnancy rate after timed embryo transfer?
title Does combining estradiol cypionate and GnRH for ovulation induction in recipient cows increase pregnancy rate after timed embryo transfer?
title_full Does combining estradiol cypionate and GnRH for ovulation induction in recipient cows increase pregnancy rate after timed embryo transfer?
title_fullStr Does combining estradiol cypionate and GnRH for ovulation induction in recipient cows increase pregnancy rate after timed embryo transfer?
title_full_unstemmed Does combining estradiol cypionate and GnRH for ovulation induction in recipient cows increase pregnancy rate after timed embryo transfer?
title_short Does combining estradiol cypionate and GnRH for ovulation induction in recipient cows increase pregnancy rate after timed embryo transfer?
title_sort does combining estradiol cypionate and gnrh for ovulation induction in recipient cows increase pregnancy rate after timed embryo transfer?
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9575387/
https://www.ncbi.nlm.nih.gov/pubmed/36277483
http://dx.doi.org/10.1590/1984-3143-AR2022-0067
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