Human chorionic gonadotropin affects original (ovulatory) and induced (accessory) corpora lutea, progesterone concentrations, and pregnancy rates in anestrous dairy goats
Main Author: | |
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Publication Date: | 2022 |
Other Authors: | , , , , , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UNESP |
Download full: | http://dx.doi.org/10.1016/j.repbio.2021.100591 http://hdl.handle.net/11449/222969 |
Summary: | Two experiments were conducted in acyclic Alpine (A) and Saanen (S) goats that received intravaginal sponges containing 60 mg of medroxyprogesterone acetate for 6 days, as well as 200 IU of eCG and 30 μg d-cloprostenol i.m. 24 h before sponge removal. On day 7 (day 0 = onset of synchronized estrus), all goats were randomly divided into two groups: animals treated with 300 IU of hCG i.m. (hCG; Exp.1: n = 8A; Exp.2: n = 75A + S) and untreated controls (Control; Exp.1: n = 8A; Exp. 2: n = 70A + S). In Exp.2, all goats were artificially inseminated. Transrectal ovarian ultrasonography and blood collection were done on days 7, 10, 13, 17, and 21 (Exp.1), and pregnancy detection on day 60 (Exp.2). Estrus and ovulations occurred in five hCG and seven Control animals. Accessory CL (aCL) were detected in all hCG does. The total luteal area of ovulatory corpora lutea (oCL) increased (P < 0.05) on day 10 in hCG does and remained greater (P < 0.05) than in Control until day 21. Total and high-velocity color Doppler area were greater (P < 0.05) for oCL of hCG does on days 13 and 17. Progesterone concentrations were greater (P < 0.05) in hCG does from days 13 to 21 and related directly to the total luteal and oCL area for the duration of the study in all does. The pregnancy rate was higher (P < 0.05) in hCG than in Control by 22.5 %. Human chorionic gonadotropin given on day 7 of the synchronized estrous cycle positively affected CL function and pregnancy rates in seasonally anovular dairy goats. |
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Human chorionic gonadotropin affects original (ovulatory) and induced (accessory) corpora lutea, progesterone concentrations, and pregnancy rates in anestrous dairy goatsCorpus luteumHuman chorionic gonadotropinOvarian ultrasonographyPregnancyProgesteroneTwo experiments were conducted in acyclic Alpine (A) and Saanen (S) goats that received intravaginal sponges containing 60 mg of medroxyprogesterone acetate for 6 days, as well as 200 IU of eCG and 30 μg d-cloprostenol i.m. 24 h before sponge removal. On day 7 (day 0 = onset of synchronized estrus), all goats were randomly divided into two groups: animals treated with 300 IU of hCG i.m. (hCG; Exp.1: n = 8A; Exp.2: n = 75A + S) and untreated controls (Control; Exp.1: n = 8A; Exp. 2: n = 70A + S). In Exp.2, all goats were artificially inseminated. Transrectal ovarian ultrasonography and blood collection were done on days 7, 10, 13, 17, and 21 (Exp.1), and pregnancy detection on day 60 (Exp.2). Estrus and ovulations occurred in five hCG and seven Control animals. Accessory CL (aCL) were detected in all hCG does. The total luteal area of ovulatory corpora lutea (oCL) increased (P < 0.05) on day 10 in hCG does and remained greater (P < 0.05) than in Control until day 21. Total and high-velocity color Doppler area were greater (P < 0.05) for oCL of hCG does on days 13 and 17. Progesterone concentrations were greater (P < 0.05) in hCG does from days 13 to 21 and related directly to the total luteal and oCL area for the duration of the study in all does. The pregnancy rate was higher (P < 0.05) in hCG than in Control by 22.5 %. Human chorionic gonadotropin given on day 7 of the synchronized estrous cycle positively affected CL function and pregnancy rates in seasonally anovular dairy goats.Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Empresa Brasileira de Pesquisa AgropecuáriaConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)Departamento de Medicina Veterinária Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/nFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Via de acesso Prof. Paulo Donato Castellane, s/nDepartamento de Reprodução e Avaliação Animal Universidade Federal Rural do Rio de Janeiro, Rodovia BR 465, Km7, s/nInstituto de Medicina Veterinária Universidade Federal do Pará, Av. dos Universitários, s/nUniversidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, n° 2000Department of Biomedical Sciences Ontario Veterinary College University of GuelphEmbrapa Caprinos e Ovinos, Estrada Sobral/Groaíras, km 04, CP 145Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Via de acesso Prof. Paulo Donato Castellane, s/nEmpresa Brasileira de Pesquisa Agropecuária: 20.19.01.004.00.03.001CNPq: 314952/2018-7FAPEMIG: CVZ-PPM-000201-17Universidade Federal de Viçosa (UFV)Universidade Estadual Paulista (UNESP)Universidade Federal Rural do Rio de JaneiroUniversidade Federal do Pará (UFPA)Universidade Estadual do Norte Fluminense Darcy RibeiroUniversity of GuelphEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Rodrigues, Juliana Nascimento DuarteGuimarães, José DomingosOliveira, Maria Emilia Franco [UNESP]Dias, Jenniffer HauschildtArrais, Aline Matosde Sousa, Marco Antonio PaulaBastos, RosemaryAhmadi, BaharehBartlewski, Pawel MieczyslawFonseca, Jeferson Ferreira2022-04-28T19:47:49Z2022-04-28T19:47:49Z2022-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.repbio.2021.100591Reproductive Biology, v. 22, n. 1, 2022.1642-431Xhttp://hdl.handle.net/11449/22296910.1016/j.repbio.2021.1005912-s2.0-85120430409Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengReproductive Biology231635info:eu-repo/semantics/openAccess2023-05-19T15:29:41Zoai:repositorio.unesp.br:11449/222969Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-05-19T15:29:41Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Human chorionic gonadotropin affects original (ovulatory) and induced (accessory) corpora lutea, progesterone concentrations, and pregnancy rates in anestrous dairy goats |
title |
Human chorionic gonadotropin affects original (ovulatory) and induced (accessory) corpora lutea, progesterone concentrations, and pregnancy rates in anestrous dairy goats |
spellingShingle |
Human chorionic gonadotropin affects original (ovulatory) and induced (accessory) corpora lutea, progesterone concentrations, and pregnancy rates in anestrous dairy goats Rodrigues, Juliana Nascimento Duarte Corpus luteum Human chorionic gonadotropin Ovarian ultrasonography Pregnancy Progesterone |
title_short |
Human chorionic gonadotropin affects original (ovulatory) and induced (accessory) corpora lutea, progesterone concentrations, and pregnancy rates in anestrous dairy goats |
title_full |
Human chorionic gonadotropin affects original (ovulatory) and induced (accessory) corpora lutea, progesterone concentrations, and pregnancy rates in anestrous dairy goats |
title_fullStr |
Human chorionic gonadotropin affects original (ovulatory) and induced (accessory) corpora lutea, progesterone concentrations, and pregnancy rates in anestrous dairy goats |
title_full_unstemmed |
Human chorionic gonadotropin affects original (ovulatory) and induced (accessory) corpora lutea, progesterone concentrations, and pregnancy rates in anestrous dairy goats |
title_sort |
Human chorionic gonadotropin affects original (ovulatory) and induced (accessory) corpora lutea, progesterone concentrations, and pregnancy rates in anestrous dairy goats |
author |
Rodrigues, Juliana Nascimento Duarte |
author_facet |
Rodrigues, Juliana Nascimento Duarte Guimarães, José Domingos Oliveira, Maria Emilia Franco [UNESP] Dias, Jenniffer Hauschildt Arrais, Aline Matos de Sousa, Marco Antonio Paula Bastos, Rosemary Ahmadi, Bahareh Bartlewski, Pawel Mieczyslaw Fonseca, Jeferson Ferreira |
author_role |
author |
author2 |
Guimarães, José Domingos Oliveira, Maria Emilia Franco [UNESP] Dias, Jenniffer Hauschildt Arrais, Aline Matos de Sousa, Marco Antonio Paula Bastos, Rosemary Ahmadi, Bahareh Bartlewski, Pawel Mieczyslaw Fonseca, Jeferson Ferreira |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Viçosa (UFV) Universidade Estadual Paulista (UNESP) Universidade Federal Rural do Rio de Janeiro Universidade Federal do Pará (UFPA) Universidade Estadual do Norte Fluminense Darcy Ribeiro University of Guelph Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Rodrigues, Juliana Nascimento Duarte Guimarães, José Domingos Oliveira, Maria Emilia Franco [UNESP] Dias, Jenniffer Hauschildt Arrais, Aline Matos de Sousa, Marco Antonio Paula Bastos, Rosemary Ahmadi, Bahareh Bartlewski, Pawel Mieczyslaw Fonseca, Jeferson Ferreira |
dc.subject.por.fl_str_mv |
Corpus luteum Human chorionic gonadotropin Ovarian ultrasonography Pregnancy Progesterone |
topic |
Corpus luteum Human chorionic gonadotropin Ovarian ultrasonography Pregnancy Progesterone |
description |
Two experiments were conducted in acyclic Alpine (A) and Saanen (S) goats that received intravaginal sponges containing 60 mg of medroxyprogesterone acetate for 6 days, as well as 200 IU of eCG and 30 μg d-cloprostenol i.m. 24 h before sponge removal. On day 7 (day 0 = onset of synchronized estrus), all goats were randomly divided into two groups: animals treated with 300 IU of hCG i.m. (hCG; Exp.1: n = 8A; Exp.2: n = 75A + S) and untreated controls (Control; Exp.1: n = 8A; Exp. 2: n = 70A + S). In Exp.2, all goats were artificially inseminated. Transrectal ovarian ultrasonography and blood collection were done on days 7, 10, 13, 17, and 21 (Exp.1), and pregnancy detection on day 60 (Exp.2). Estrus and ovulations occurred in five hCG and seven Control animals. Accessory CL (aCL) were detected in all hCG does. The total luteal area of ovulatory corpora lutea (oCL) increased (P < 0.05) on day 10 in hCG does and remained greater (P < 0.05) than in Control until day 21. Total and high-velocity color Doppler area were greater (P < 0.05) for oCL of hCG does on days 13 and 17. Progesterone concentrations were greater (P < 0.05) in hCG does from days 13 to 21 and related directly to the total luteal and oCL area for the duration of the study in all does. The pregnancy rate was higher (P < 0.05) in hCG than in Control by 22.5 %. Human chorionic gonadotropin given on day 7 of the synchronized estrous cycle positively affected CL function and pregnancy rates in seasonally anovular dairy goats. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-28T19:47:49Z 2022-04-28T19:47:49Z 2022-03-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.repbio.2021.100591 Reproductive Biology, v. 22, n. 1, 2022. 1642-431X http://hdl.handle.net/11449/222969 10.1016/j.repbio.2021.100591 2-s2.0-85120430409 |
url |
http://dx.doi.org/10.1016/j.repbio.2021.100591 http://hdl.handle.net/11449/222969 |
identifier_str_mv |
Reproductive Biology, v. 22, n. 1, 2022. 1642-431X 10.1016/j.repbio.2021.100591 2-s2.0-85120430409 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Reproductive Biology 231635 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1799965411257614336 |