Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle

Detalhes bibliográficos
Autor(a) principal: Couto, Samuel Rodrigues Bonamichi do
Data de Publicação: 2023
Outros Autores: Guerson, Yuri Barbosa, Morais, Rita de Cássia Lima, Grillo, Gustavo Fernandes, Andrade, João Paulo Nascimento, Jacob, Julio Cesar Ferraz, Barbero, Rondineli Pavezzi, Mello, Marco Roberto Bourg de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: https://locus.ufv.br//handle/123456789/31293
https://doi.org/10.37496/rbz5220220148
Resumo: The objective of this study was to evaluate the relationships between preovulatory follicle (POF) and corpus luteum (CL) diameters, and POF and CL vascular perfusion with progesterone production, ovulation, and pregnancy in Nellore cows subjected to timed artificial insemination (TAI). Nellore cows (n = 201) were subjected to ovulation synchronization and later to ultrasound evaluation of POF and CL at the time of insemination (D0) and seven days later (D7), respectively. Females were divided into three categories according to the POF diameter assessed at the time of insemination: small (SF), medium (MF), and large (LF) follicles. The LF group had a greater number and intensity of pixels in the POF ultrasound exam compared with the SF group. The CL flow intensity and progesterone concentration were also higher in the LF group. The SF group showed lower flow intensity and lower ovulation rate compared with the others. When non-pregnant females were compared to pregnant ones, no difference was observed in any of the analyzed variables. The results show for the first time in Nellore cattle the relationship between the size of ovarian structures and blood flow (quantity and intensity) as well as the ability of the CL to produce progesterone. The intensity of the POF pixels proved to be relevant, demonstrating correlations with the size and flow of the CL, which were not found when evaluating only the number of pixels, thus revealing the importance of evaluating complementary characteristics of the flow
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spelling Couto, Samuel Rodrigues Bonamichi doGuerson, Yuri BarbosaMorais, Rita de Cássia LimaGrillo, Gustavo FernandesAndrade, João Paulo NascimentoJacob, Julio Cesar FerrazBarbero, Rondineli PavezziMello, Marco Roberto Bourg de2023-08-15T10:16:03Z2023-08-15T10:16:03Z2023-08-04Couto, S. R. B.; Guerson, Y. B.; Morais, R. C. L.; Grillo, G. F.; Andrade, J. P. N.; Jacob, J. C. F.; Barbero, R. P. and Mello, M. R. B. 2023. Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle. Revista Brasileira de Zootecnia 52:e202201481806-9290https://locus.ufv.br//handle/123456789/31293https://doi.org/10.37496/rbz5220220148The objective of this study was to evaluate the relationships between preovulatory follicle (POF) and corpus luteum (CL) diameters, and POF and CL vascular perfusion with progesterone production, ovulation, and pregnancy in Nellore cows subjected to timed artificial insemination (TAI). Nellore cows (n = 201) were subjected to ovulation synchronization and later to ultrasound evaluation of POF and CL at the time of insemination (D0) and seven days later (D7), respectively. Females were divided into three categories according to the POF diameter assessed at the time of insemination: small (SF), medium (MF), and large (LF) follicles. The LF group had a greater number and intensity of pixels in the POF ultrasound exam compared with the SF group. The CL flow intensity and progesterone concentration were also higher in the LF group. The SF group showed lower flow intensity and lower ovulation rate compared with the others. When non-pregnant females were compared to pregnant ones, no difference was observed in any of the analyzed variables. The results show for the first time in Nellore cattle the relationship between the size of ovarian structures and blood flow (quantity and intensity) as well as the ability of the CL to produce progesterone. The intensity of the POF pixels proved to be relevant, demonstrating correlations with the size and flow of the CL, which were not found when evaluating only the number of pixels, thus revealing the importance of evaluating complementary characteristics of the flowengBrazilian Journal of Animal ScienceR. Bras. Zootec., 52:e20220148, 2023Creative Commons Attribution Licenseinfo:eu-repo/semantics/openAccesscattlecolor Dopplerovarypreovulatory folliclevascular perfusionRelationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlereponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINAL1806-9290-rbz-52-e20220148.pdf1806-9290-rbz-52-e20220148.pdfartigoapplication/pdf481849https://locus.ufv.br//bitstream/123456789/31293/1/1806-9290-rbz-52-e20220148.pdfe5c30b49b6892b60ef1f60d061bf6ba7MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/31293/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/312932023-08-15 07:16:03.617oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452023-08-15T10:16:03LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.en.fl_str_mv Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle
title Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle
spellingShingle Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle
Couto, Samuel Rodrigues Bonamichi do
cattle
color Doppler
ovary
preovulatory follicle
vascular perfusion
title_short Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle
title_full Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle
title_fullStr Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle
title_full_unstemmed Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle
title_sort Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle
author Couto, Samuel Rodrigues Bonamichi do
author_facet Couto, Samuel Rodrigues Bonamichi do
Guerson, Yuri Barbosa
Morais, Rita de Cássia Lima
Grillo, Gustavo Fernandes
Andrade, João Paulo Nascimento
Jacob, Julio Cesar Ferraz
Barbero, Rondineli Pavezzi
Mello, Marco Roberto Bourg de
author_role author
author2 Guerson, Yuri Barbosa
Morais, Rita de Cássia Lima
Grillo, Gustavo Fernandes
Andrade, João Paulo Nascimento
Jacob, Julio Cesar Ferraz
Barbero, Rondineli Pavezzi
Mello, Marco Roberto Bourg de
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Couto, Samuel Rodrigues Bonamichi do
Guerson, Yuri Barbosa
Morais, Rita de Cássia Lima
Grillo, Gustavo Fernandes
Andrade, João Paulo Nascimento
Jacob, Julio Cesar Ferraz
Barbero, Rondineli Pavezzi
Mello, Marco Roberto Bourg de
dc.subject.eng.fl_str_mv cattle
color Doppler
ovary
preovulatory follicle
vascular perfusion
topic cattle
color Doppler
ovary
preovulatory follicle
vascular perfusion
description The objective of this study was to evaluate the relationships between preovulatory follicle (POF) and corpus luteum (CL) diameters, and POF and CL vascular perfusion with progesterone production, ovulation, and pregnancy in Nellore cows subjected to timed artificial insemination (TAI). Nellore cows (n = 201) were subjected to ovulation synchronization and later to ultrasound evaluation of POF and CL at the time of insemination (D0) and seven days later (D7), respectively. Females were divided into three categories according to the POF diameter assessed at the time of insemination: small (SF), medium (MF), and large (LF) follicles. The LF group had a greater number and intensity of pixels in the POF ultrasound exam compared with the SF group. The CL flow intensity and progesterone concentration were also higher in the LF group. The SF group showed lower flow intensity and lower ovulation rate compared with the others. When non-pregnant females were compared to pregnant ones, no difference was observed in any of the analyzed variables. The results show for the first time in Nellore cattle the relationship between the size of ovarian structures and blood flow (quantity and intensity) as well as the ability of the CL to produce progesterone. The intensity of the POF pixels proved to be relevant, demonstrating correlations with the size and flow of the CL, which were not found when evaluating only the number of pixels, thus revealing the importance of evaluating complementary characteristics of the flow
publishDate 2023
dc.date.accessioned.fl_str_mv 2023-08-15T10:16:03Z
dc.date.available.fl_str_mv 2023-08-15T10:16:03Z
dc.date.issued.fl_str_mv 2023-08-04
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.citation.fl_str_mv Couto, S. R. B.; Guerson, Y. B.; Morais, R. C. L.; Grillo, G. F.; Andrade, J. P. N.; Jacob, J. C. F.; Barbero, R. P. and Mello, M. R. B. 2023. Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle. Revista Brasileira de Zootecnia 52:e20220148
dc.identifier.uri.fl_str_mv https://locus.ufv.br//handle/123456789/31293
dc.identifier.issn.none.fl_str_mv 1806-9290
dc.identifier.doi.pt-BR.fl_str_mv https://doi.org/10.37496/rbz5220220148
identifier_str_mv Couto, S. R. B.; Guerson, Y. B.; Morais, R. C. L.; Grillo, G. F.; Andrade, J. P. N.; Jacob, J. C. F.; Barbero, R. P. and Mello, M. R. B. 2023. Relationships between follicle and corpus luteum size and vascularization with ovulation, progesterone production, and pregnancy in Nellore beef cattle. Revista Brasileira de Zootecnia 52:e20220148
1806-9290
url https://locus.ufv.br//handle/123456789/31293
https://doi.org/10.37496/rbz5220220148
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartofseries.pt-BR.fl_str_mv R. Bras. Zootec., 52:e20220148, 2023
dc.rights.driver.fl_str_mv Creative Commons Attribution License
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Creative Commons Attribution License
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Brazilian Journal of Animal Science
publisher.none.fl_str_mv Brazilian Journal of Animal Science
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
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