INDUÇÃO DE DUPLA OVULAÇÃO EM FÊMEAS NELORE x ANGUS (BOS INDICUS x BOS TAURUS).

Detalhes bibliográficos
Autor(a) principal: QUEIROZ, Cláudio Fellipe Rocha de
Data de Publicação: 2019
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFMA
Texto Completo: https://tedebc.ufma.br/jspui/handle/tede/tede/2935
Resumo: Birth and weaning rates are recognized as the main indicators for measuring reproductive efficiency in beef cattle. The number of calves born can be increased by protocols for inducing twin pregnancies. To verify the effect of equine chorionic gonadotropin (eCG) on induction of double ovulation, 78 multiparous Nelore x Angus (Bos indicus x Bos taurus) cow were submitted to E2+P4-based ovulation synchronization protocol, with different doses of eCG (300 vs 1,000 vs 1,200 IU) administered on different days of the protocol (Progesterone device for 8 days + eCG at D6 vs Progesterone device for 9 days + eCG at D7). There was no effect of the eCG dose on follicular diameter nor in ovulation time of the dominant and subordinate follicles. The number of ovulations was higher in 1,000 and 1,200 IU treatments in cows treated with eCG at the D6 of the protocol (group CIDR 8), whereas in those receiving eCG at D7 there was no differences in the number of ovulations. The highest percentage of double and multiple ovulations was found in treatments eCG 1,000 and eCG 1,200 respectively in the CIDR 8 protocol. Both in the CIDR 8 and in the CIDR 9 protocols there was a significant effect of the eCG dose on the number of fetuses at 40 days after TAI. Pregnancy rates declined in the same proportion as the dose increases in the eCG 300 [76.9% (20/26)], eCG 1,000 [57.7% (15/26)] and eCG 1,200 [38.5% (10 / 26)] treatments, respectively; P = 0.02).. Finally, we conclude that the use of equine chorionic gonadotrophin (eCG) at doses of 1,000 and 1,200 IU increases double ovulations but reduces pregnancy rates and increases the multiple ovulations in Bos taurus x Bos indicus cows submitted to TAI Therefore, it is not recommended as a method to increase the efficiency of beef cattle production.
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spelling TORRES JÚNIOR, José de Ribamar837.907.133-68http://lattes.cnpq.br/7462697632109147TORRES JÚNIOR, José de Ribamar837.907.133-68http://lattes.cnpq.br/7462697632109147SILVA, Zinaldo Firmino dahttp://lattes.cnpq.br/7912969106510668MORAES JUNIOR, Felipe de Jesushttp://lattes.cnpq.br/8267317126653577622.748.803-87http://lattes.cnpq.br/3035329742441979QUEIROZ, Cláudio Fellipe Rocha de2019-12-03T20:07:20Z2019-06-06QUEIROZ, Cláudio Fellipe Rocha de. Indução de dupla ovulação em fêmeas nelore x angus (bos indicus x bos taurus).. 2019. 46 folhas. Dissertação( Programa de Pós-Graduação em Ciência Animal (25.06)/CCAA) - Universidade Federal do Maranhão, Chapadinha,2019.https://tedebc.ufma.br/jspui/handle/tede/tede/2935Birth and weaning rates are recognized as the main indicators for measuring reproductive efficiency in beef cattle. The number of calves born can be increased by protocols for inducing twin pregnancies. To verify the effect of equine chorionic gonadotropin (eCG) on induction of double ovulation, 78 multiparous Nelore x Angus (Bos indicus x Bos taurus) cow were submitted to E2+P4-based ovulation synchronization protocol, with different doses of eCG (300 vs 1,000 vs 1,200 IU) administered on different days of the protocol (Progesterone device for 8 days + eCG at D6 vs Progesterone device for 9 days + eCG at D7). There was no effect of the eCG dose on follicular diameter nor in ovulation time of the dominant and subordinate follicles. The number of ovulations was higher in 1,000 and 1,200 IU treatments in cows treated with eCG at the D6 of the protocol (group CIDR 8), whereas in those receiving eCG at D7 there was no differences in the number of ovulations. The highest percentage of double and multiple ovulations was found in treatments eCG 1,000 and eCG 1,200 respectively in the CIDR 8 protocol. Both in the CIDR 8 and in the CIDR 9 protocols there was a significant effect of the eCG dose on the number of fetuses at 40 days after TAI. Pregnancy rates declined in the same proportion as the dose increases in the eCG 300 [76.9% (20/26)], eCG 1,000 [57.7% (15/26)] and eCG 1,200 [38.5% (10 / 26)] treatments, respectively; P = 0.02).. Finally, we conclude that the use of equine chorionic gonadotrophin (eCG) at doses of 1,000 and 1,200 IU increases double ovulations but reduces pregnancy rates and increases the multiple ovulations in Bos taurus x Bos indicus cows submitted to TAI Therefore, it is not recommended as a method to increase the efficiency of beef cattle production.As taxas de natalidade e desmame são reconhecidas como os principais indicadores para mensurar a eficiência reprodutiva em bovinos de corte. O número de bezerros nascidos pode ser aumentado por meio de protocolos de indução de gestações gemelares. Objetivando verificar o efeito da gonadotrofina coriônica equina (eCG) na indução de dupla ovulação de fêmeas bovinas, 78 vacas multíparas ½ sangue Nelore x Angus (Bos indicus x Bos taurus) foram submetidas ao protocolo de sincronização da ovulação à base de progesterona + estradiol, adicionado de diferentes doses de eCG (300 vs 1.000 vs 1.200 UI) administradas em diferentes dias do protocolo (implante 8 dias + eCG no D6 vs implante 9 dias + eCG no D7). Não houve efeito da dose de eCG no diâmetro folicular e nem no momento das ovulações dos folículos dominantes e subordinados. O número de ovulações foi maior nos tratamentos com doses de 1.000 e 1.200 UI nos animais tratados com eCG no D6 do protocolo (grupo CIDR 8), enquanto que naqueles que receberam eCG no D7 não houve diferença no número de ovulações em relação aos tratamentos. O maior percentual de ovulações duplas e múltiplas foi encontrado nos tratamentos eCG 1.000 e eCG 1.200 respectivamente no grupo CIDR 8 dias. Tanto no protocolo CIDR 8 quanto no protocolo CIDR 9 houve efeito significativo da dose de eCG no número de fetos aos 40 dias pós IATF. As taxas de prenhez decresceram proporcionalmente ao aumento da dose nos tratamentos eCG 300 [76,9% (20/26)], eCG 1.000 [57,7 % (15/26)] e eCG 1.200 [38,5% (10/26)], respectivamente; P= 0,02). O uso de gonadotrofina coriônica equina (eCG) em doses de 1.000 e 1.200 UI aumenta a ocorrência de duplas ovulações, mas reduz as taxas de prenhez e aumenta a ocorrência de múltiplas ovulações em fêmeas Bos indicus x Bos taurus em protocolos para inseminação artificial em tempo fixo, sendo, portanto, não recomendado como método para aumentar a eficiência na produção de bovinos de corte.Submitted by Maria Aparecida (cidazen@gmail.com) on 2019-12-03T20:07:20Z No. of bitstreams: 1 Cláudio Fellipe R. de Queiroz.pdf: 851316 bytes, checksum: ce366f1e07306f0ede6488ca3d42e36f (MD5)Made available in DSpace on 2019-12-03T20:07:20Z (GMT). No. of bitstreams: 1 Cláudio Fellipe R. de Queiroz.pdf: 851316 bytes, checksum: ce366f1e07306f0ede6488ca3d42e36f (MD5) Previous issue date: 2019-06-06application/pdfporUniversidade Federal do MaranhãoPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA ANIMAL (25.06)/CCAAUFMABrasilDEPARTAMENTO DE OCEANOGRAFIA E LIMNOLOGIA/CCBSbovino de corte;biotecnologia;gemelaridade;IATF;onda folicularbeef cattle;biotechnology;FTAI;follicular wave;twinningGenética AnimalINDUÇÃO DE DUPLA OVULAÇÃO EM FÊMEAS NELORE x ANGUS (BOS INDICUS x BOS TAURUS).DOUBLE OVULATION INDUCTION IN FEMALE NELORE x ANGUS (BOS INDICUS x BOS TAURUS).info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFMAinstname:Universidade Federal do Maranhão (UFMA)instacron:UFMAORIGINALCláudio Fellipe R. de Queiroz.pdfCláudio Fellipe R. de Queiroz.pdfapplication/pdf851316http://tedebc.ufma.br:8080/bitstream/tede/2935/2/Cl%C3%A1udio+Fellipe+R.+de+Queiroz.pdfce366f1e07306f0ede6488ca3d42e36fMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82255http://tedebc.ufma.br:8080/bitstream/tede/2935/1/license.txt97eeade1fce43278e63fe063657f8083MD51tede/29352019-12-03 17:07:20.537oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttps://tedebc.ufma.br/jspui/PUBhttp://tedebc.ufma.br:8080/oai/requestrepositorio@ufma.br||repositorio@ufma.bropendoar:21312019-12-03T20:07:20Biblioteca Digital de Teses e Dissertações da UFMA - Universidade Federal do Maranhão (UFMA)false
dc.title.por.fl_str_mv INDUÇÃO DE DUPLA OVULAÇÃO EM FÊMEAS NELORE x ANGUS (BOS INDICUS x BOS TAURUS).
dc.title.alternative.eng.fl_str_mv DOUBLE OVULATION INDUCTION IN FEMALE NELORE x ANGUS (BOS INDICUS x BOS TAURUS).
title INDUÇÃO DE DUPLA OVULAÇÃO EM FÊMEAS NELORE x ANGUS (BOS INDICUS x BOS TAURUS).
spellingShingle INDUÇÃO DE DUPLA OVULAÇÃO EM FÊMEAS NELORE x ANGUS (BOS INDICUS x BOS TAURUS).
QUEIROZ, Cláudio Fellipe Rocha de
bovino de corte;
biotecnologia;
gemelaridade;
IATF;
onda folicular
beef cattle;
biotechnology;
FTAI;
follicular wave;
twinning
Genética Animal
title_short INDUÇÃO DE DUPLA OVULAÇÃO EM FÊMEAS NELORE x ANGUS (BOS INDICUS x BOS TAURUS).
title_full INDUÇÃO DE DUPLA OVULAÇÃO EM FÊMEAS NELORE x ANGUS (BOS INDICUS x BOS TAURUS).
title_fullStr INDUÇÃO DE DUPLA OVULAÇÃO EM FÊMEAS NELORE x ANGUS (BOS INDICUS x BOS TAURUS).
title_full_unstemmed INDUÇÃO DE DUPLA OVULAÇÃO EM FÊMEAS NELORE x ANGUS (BOS INDICUS x BOS TAURUS).
title_sort INDUÇÃO DE DUPLA OVULAÇÃO EM FÊMEAS NELORE x ANGUS (BOS INDICUS x BOS TAURUS).
author QUEIROZ, Cláudio Fellipe Rocha de
author_facet QUEIROZ, Cláudio Fellipe Rocha de
author_role author
dc.contributor.advisor1.fl_str_mv TORRES JÚNIOR, José de Ribamar
dc.contributor.advisor1ID.fl_str_mv 837.907.133-68
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/7462697632109147
dc.contributor.referee1.fl_str_mv TORRES JÚNIOR, José de Ribamar
dc.contributor.referee1ID.fl_str_mv 837.907.133-68
dc.contributor.referee1Lattes.fl_str_mv http://lattes.cnpq.br/7462697632109147
dc.contributor.referee2.fl_str_mv SILVA, Zinaldo Firmino da
dc.contributor.referee2Lattes.fl_str_mv http://lattes.cnpq.br/7912969106510668
dc.contributor.referee3.fl_str_mv MORAES JUNIOR, Felipe de Jesus
dc.contributor.referee3Lattes.fl_str_mv http://lattes.cnpq.br/8267317126653577
dc.contributor.authorID.fl_str_mv 622.748.803-87
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/3035329742441979
dc.contributor.author.fl_str_mv QUEIROZ, Cláudio Fellipe Rocha de
contributor_str_mv TORRES JÚNIOR, José de Ribamar
TORRES JÚNIOR, José de Ribamar
SILVA, Zinaldo Firmino da
MORAES JUNIOR, Felipe de Jesus
dc.subject.por.fl_str_mv bovino de corte;
biotecnologia;
gemelaridade;
IATF;
onda folicular
topic bovino de corte;
biotecnologia;
gemelaridade;
IATF;
onda folicular
beef cattle;
biotechnology;
FTAI;
follicular wave;
twinning
Genética Animal
dc.subject.eng.fl_str_mv beef cattle;
biotechnology;
FTAI;
follicular wave;
twinning
dc.subject.cnpq.fl_str_mv Genética Animal
description Birth and weaning rates are recognized as the main indicators for measuring reproductive efficiency in beef cattle. The number of calves born can be increased by protocols for inducing twin pregnancies. To verify the effect of equine chorionic gonadotropin (eCG) on induction of double ovulation, 78 multiparous Nelore x Angus (Bos indicus x Bos taurus) cow were submitted to E2+P4-based ovulation synchronization protocol, with different doses of eCG (300 vs 1,000 vs 1,200 IU) administered on different days of the protocol (Progesterone device for 8 days + eCG at D6 vs Progesterone device for 9 days + eCG at D7). There was no effect of the eCG dose on follicular diameter nor in ovulation time of the dominant and subordinate follicles. The number of ovulations was higher in 1,000 and 1,200 IU treatments in cows treated with eCG at the D6 of the protocol (group CIDR 8), whereas in those receiving eCG at D7 there was no differences in the number of ovulations. The highest percentage of double and multiple ovulations was found in treatments eCG 1,000 and eCG 1,200 respectively in the CIDR 8 protocol. Both in the CIDR 8 and in the CIDR 9 protocols there was a significant effect of the eCG dose on the number of fetuses at 40 days after TAI. Pregnancy rates declined in the same proportion as the dose increases in the eCG 300 [76.9% (20/26)], eCG 1,000 [57.7% (15/26)] and eCG 1,200 [38.5% (10 / 26)] treatments, respectively; P = 0.02).. Finally, we conclude that the use of equine chorionic gonadotrophin (eCG) at doses of 1,000 and 1,200 IU increases double ovulations but reduces pregnancy rates and increases the multiple ovulations in Bos taurus x Bos indicus cows submitted to TAI Therefore, it is not recommended as a method to increase the efficiency of beef cattle production.
publishDate 2019
dc.date.accessioned.fl_str_mv 2019-12-03T20:07:20Z
dc.date.issued.fl_str_mv 2019-06-06
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.citation.fl_str_mv QUEIROZ, Cláudio Fellipe Rocha de. Indução de dupla ovulação em fêmeas nelore x angus (bos indicus x bos taurus).. 2019. 46 folhas. Dissertação( Programa de Pós-Graduação em Ciência Animal (25.06)/CCAA) - Universidade Federal do Maranhão, Chapadinha,2019.
dc.identifier.uri.fl_str_mv https://tedebc.ufma.br/jspui/handle/tede/tede/2935
identifier_str_mv QUEIROZ, Cláudio Fellipe Rocha de. Indução de dupla ovulação em fêmeas nelore x angus (bos indicus x bos taurus).. 2019. 46 folhas. Dissertação( Programa de Pós-Graduação em Ciência Animal (25.06)/CCAA) - Universidade Federal do Maranhão, Chapadinha,2019.
url https://tedebc.ufma.br/jspui/handle/tede/tede/2935
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language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Maranhão
dc.publisher.program.fl_str_mv PROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA ANIMAL (25.06)/CCAA
dc.publisher.initials.fl_str_mv UFMA
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv DEPARTAMENTO DE OCEANOGRAFIA E LIMNOLOGIA/CCBS
publisher.none.fl_str_mv Universidade Federal do Maranhão
dc.source.none.fl_str_mv reponame:Biblioteca Digital de Teses e Dissertações da UFMA
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