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Registro Completo |
Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
29/06/2023 |
Data da última atualização: |
18/07/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SILVA, S. A.; MONDADORI, R. G.; NOLETO, G. S.; BARBOSA, I. P.; GONÇALVES, R. L.; GASPERIN, B. G.; ROVANI, M. T.; PAZ, E. F.; GOMES, L. S.; PFEIFER, L. F. M. |
Afiliação: |
SAMIRA A. SILVA, UNIVERSIDADE FEDERAL DE PELOTAS; RAFAEL G. MONDADORI, UNIVERSIDADE FEDERAL DE PELOTAS; GABRIELLY S. NOLETO, UNIVERSIDADE FEDERAL DE RONDÔNIA; INGRID P. BARBOSA, UNIVERSIDADE FEDERAL DO ACRE; REUEL L. GONÇALVES, BIOGENESIS BAGO SAÚDE ANIMAL; BERNARDO G. GASPERIN, UNIVERSIDADE FEDERAL DE PELOTAS; MONIQUE T. ROVANI, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; EANES F. PAZ, ASSITÊNCIA TÉCNICA E EXTENSÃO RURAL; LEONARDO S. GOMES, Embrapa Rondônia; LUIZ FRANCISCO MACHADO PFEIFER, CPAF-RO. |
Título: |
GnRH34 with or without estradiol cypionate in timed AI in Bos indicus beef cows. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Theriogenology, v. 209, p. 134-140, 2023. |
ISSN: |
0093-691X |
DOI: |
https://doi.org/10.1016/j.theriogenology.2023.06.026 |
Idioma: |
Inglês |
Conteúdo: |
Two experiments were performed to evaluate the effects of GnRH treatment on the fertility of suckled Nelore beef cows treated with an estradiol/progesterone (E2/P4)-based protocol for timed artificial insemination (TAI). Experiment 1 focused on determining the effects of estradiol cypionate (EC) on ovulation in TAI cows treated with GnRH 34 h after removal of the intravaginal P4 device (IPD). Suckled cows (n ¼ 26) were treated with 2 mg estradiol benzoate (EB) and IPD containing 1 g P4. After 8 days, IPDs were removed, and all cows were treated with 150 mg of d-cloprostenol (prostaglandin F2 alpha analog) and 300 IU of equine chorionic gonadotropin (eCG), then separated into two treatment groups consisting of cows who received 1) saline 0.9% i.m. (GnRH34 group) or 2) 0.6 mg i.m. of EC (EC-GnRH34 group). On day 9 (05:00 p.m.), all cows were given GnRH (10.5 mg of buserelin acetate) i.m. No differences were observed between the groups (P > 0.05) in the time of ovulation after IPD removal or in the proportion of cows ovulating. Experiment 2 focused on determining the effects of GnRH34 along with or in the absence of EC on day 8 on pregnancy per AI (P/AI) in postpartum beef cows. Cows (n ¼ 981) were treated similarly to those in Experiment 1, but an additional group, the EC-GnRH48 group, was included, in which cows received EC on day 8 whereas those that did not show estrus received GnRH at TAI. Thus, in this experiment, groups consisted of GnRH34 (n ¼ 322), EC-GnRH34 (n ¼ 335), and EC-GnRH48 (n ¼ 324). A higher rate of estrus expression was observed in cows treated with EC following IPD removal (EC-GnRH34: 69%, EC-GnRH48: 64.8%) than in cows in the GnRH34 group (45.6%). No difference in P/AI was observed between the treatment groups (P ¼ 0.45), but P/AI in cows in the EC-GnRH34 group (64.2%) tended to be greater (P ¼ 0.1) than in cows in the GnRH34 group (58%). In summary, although ovulation synchrony did not differ among the groups, P/AI in cows treated with EC and GnRH 34 h after IPD removal tended to be greater than in cows treated solely with GnRH; this was most likely due to a shorter proestrus/estrus period, considering the lower proportion of cows that displayed estrus in the GnRH34 group. Finally, given that P/AI did not differ between the EC-GnRH34 and EC-GnRH48 groups, our results suggest that, for cows not displaying estrus, administration of EC at the time of IPD removal followed by treatment with GnRH 48 h afterward represents the most cost-efficient TAI strategy for South American Zebu-based beef operations. MenosTwo experiments were performed to evaluate the effects of GnRH treatment on the fertility of suckled Nelore beef cows treated with an estradiol/progesterone (E2/P4)-based protocol for timed artificial insemination (TAI). Experiment 1 focused on determining the effects of estradiol cypionate (EC) on ovulation in TAI cows treated with GnRH 34 h after removal of the intravaginal P4 device (IPD). Suckled cows (n ¼ 26) were treated with 2 mg estradiol benzoate (EB) and IPD containing 1 g P4. After 8 days, IPDs were removed, and all cows were treated with 150 mg of d-cloprostenol (prostaglandin F2 alpha analog) and 300 IU of equine chorionic gonadotropin (eCG), then separated into two treatment groups consisting of cows who received 1) saline 0.9% i.m. (GnRH34 group) or 2) 0.6 mg i.m. of EC (EC-GnRH34 group). On day 9 (05:00 p.m.), all cows were given GnRH (10.5 mg of buserelin acetate) i.m. No differences were observed between the groups (P > 0.05) in the time of ovulation after IPD removal or in the proportion of cows ovulating. Experiment 2 focused on determining the effects of GnRH34 along with or in the absence of EC on day 8 on pregnancy per AI (P/AI) in postpartum beef cows. Cows (n ¼ 981) were treated similarly to those in Experiment 1, but an additional group, the EC-GnRH48 group, was included, in which cows received EC on day 8 whereas those that did not show estrus received GnRH at TAI. Thus, in this experiment, groups consisted of GnRH34 (n ¼ 322), EC-GnRH34 (n ¼ 335),... Mostrar Tudo |
Palavras-Chave: |
Amazônia Ocidental; Embrapa Rondôna; Western Amazon. |
Thesagro: |
Bos Indicus; Campo Experimental; Estradiol; Fertilidade Animal; Gado Nelore; Hormônio; Ovulação; Prenhez; Reprodução Animal; Vaca de Corte. |
Thesaurus Nal: |
Animal fertility; Animal reproduction; Beef cows; Demonstration farms; Hormones; Nellore; Ovulation; Pregnancy. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154705/1/cpafro-18957.pdf
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Marc: |
LEADER 03947naa a2200505 a 4500 001 2154705 005 2023-07-18 008 2023 bl uuuu u00u1 u #d 022 $a0093-691X 024 7 $ahttps://doi.org/10.1016/j.theriogenology.2023.06.026$2DOI 100 1 $aSILVA, S. A. 245 $aGnRH34 with or without estradiol cypionate in timed AI in Bos indicus beef cows.$h[electronic resource] 260 $c2023 520 $aTwo experiments were performed to evaluate the effects of GnRH treatment on the fertility of suckled Nelore beef cows treated with an estradiol/progesterone (E2/P4)-based protocol for timed artificial insemination (TAI). Experiment 1 focused on determining the effects of estradiol cypionate (EC) on ovulation in TAI cows treated with GnRH 34 h after removal of the intravaginal P4 device (IPD). Suckled cows (n ¼ 26) were treated with 2 mg estradiol benzoate (EB) and IPD containing 1 g P4. After 8 days, IPDs were removed, and all cows were treated with 150 mg of d-cloprostenol (prostaglandin F2 alpha analog) and 300 IU of equine chorionic gonadotropin (eCG), then separated into two treatment groups consisting of cows who received 1) saline 0.9% i.m. (GnRH34 group) or 2) 0.6 mg i.m. of EC (EC-GnRH34 group). On day 9 (05:00 p.m.), all cows were given GnRH (10.5 mg of buserelin acetate) i.m. No differences were observed between the groups (P > 0.05) in the time of ovulation after IPD removal or in the proportion of cows ovulating. Experiment 2 focused on determining the effects of GnRH34 along with or in the absence of EC on day 8 on pregnancy per AI (P/AI) in postpartum beef cows. Cows (n ¼ 981) were treated similarly to those in Experiment 1, but an additional group, the EC-GnRH48 group, was included, in which cows received EC on day 8 whereas those that did not show estrus received GnRH at TAI. Thus, in this experiment, groups consisted of GnRH34 (n ¼ 322), EC-GnRH34 (n ¼ 335), and EC-GnRH48 (n ¼ 324). A higher rate of estrus expression was observed in cows treated with EC following IPD removal (EC-GnRH34: 69%, EC-GnRH48: 64.8%) than in cows in the GnRH34 group (45.6%). No difference in P/AI was observed between the treatment groups (P ¼ 0.45), but P/AI in cows in the EC-GnRH34 group (64.2%) tended to be greater (P ¼ 0.1) than in cows in the GnRH34 group (58%). In summary, although ovulation synchrony did not differ among the groups, P/AI in cows treated with EC and GnRH 34 h after IPD removal tended to be greater than in cows treated solely with GnRH; this was most likely due to a shorter proestrus/estrus period, considering the lower proportion of cows that displayed estrus in the GnRH34 group. Finally, given that P/AI did not differ between the EC-GnRH34 and EC-GnRH48 groups, our results suggest that, for cows not displaying estrus, administration of EC at the time of IPD removal followed by treatment with GnRH 48 h afterward represents the most cost-efficient TAI strategy for South American Zebu-based beef operations. 650 $aAnimal fertility 650 $aAnimal reproduction 650 $aBeef cows 650 $aDemonstration farms 650 $aHormones 650 $aNellore 650 $aOvulation 650 $aPregnancy 650 $aBos Indicus 650 $aCampo Experimental 650 $aEstradiol 650 $aFertilidade Animal 650 $aGado Nelore 650 $aHormônio 650 $aOvulação 650 $aPrenhez 650 $aReprodução Animal 650 $aVaca de Corte 653 $aAmazônia Ocidental 653 $aEmbrapa Rondôna 653 $aWestern Amazon 700 1 $aMONDADORI, R. G. 700 1 $aNOLETO, G. S. 700 1 $aBARBOSA, I. P. 700 1 $aGONÇALVES, R. L. 700 1 $aGASPERIN, B. G. 700 1 $aROVANI, M. T. 700 1 $aPAZ, E. F. 700 1 $aGOMES, L. S. 700 1 $aPFEIFER, L. F. M. 773 $tTheriogenology$gv. 209, p. 134-140, 2023.
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Embrapa Rondônia (CPAF-RO) |
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Registros recuperados : 22 | |
1. | | ROCHA, M. P.; NUNES, A. P.; MINELLO, L. F.; CRUZ, L. A. X.; ALBANO, A. P. N.; MONDADORI, R. G. Histological description of Cerdocyon thous (Linnaeus, 1766) respiratory system. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 5, p. 531-535, maio 2017. Título em português: Descrição histológica do sistema respiratório de Cerdocyon thous (Linnaeus, 1766).Biblioteca(s): Embrapa Unidades Centrais. |
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2. | | LAZZARI, J.; VELHO, G. dos S.; GASPERIN, B. G.; ROVANI, M. T.; PFEIFER, L. F. M.; MONDADORI, R. G. Estratégias farmacológicas para a manipulação do ciclo estral de fêmeas bovinas de raças de corte taurinas. In: CONGRESSO BRASILEIRO DE REPRODUÇÃO ANIMAL, 25., 2023, Belo Horizonte. Anais... Revista Brasileira de Reprodução Animal, v. 47, n. 2, p. 119-123, abr./jun. 2023.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Rondônia. |
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3. | | BRAGA, J. V.; FACCIN, J. C.; ZANI, G. da S.; MONDADORI, R. G.; LUCIA JÚNIOR, T.; MARQUES, M. G. Does Phenazine Ethosulfate improve early embryo development? In: INTERNATIONAL SYMPOSIUM ON ANIMAL BIOLOGY OF REPRODUCTION, 9., 2022, Bento Gonçalves. Abstracts...Belo Horizonte: CBRA, 2022. Animal Reproduction, v. 19, n. 4, 2022.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Suínos e Aves. |
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4. | | GASTAL, G. D. A.; PRADIEÉ, J.; PEGORARO, L. M. C.; GUSMÃO, A. L.; MONDADORI, R. G.; VIEIRA, A. D. Transcervical embryo recovery on crioula lanada sheep: preliminary results. Animal Reproduction, v. 9. n. 3. p. 558, jul/set, 2012. 558 p. Publicado no: Proceedings of the 26th Annual Meeting of the Brazilian Embryo Technology Society (SBTE), August 30th to September 2nd, 2012, Foz do Iguaçu, PR, Brazil.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
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5. | | GASTAL, G. D. A.; PRADIEÉ, J.; PEGORARO, L. M. C.; GUSMÃO, A. L.; MONDADORI, R. G.; VIEIRA, A. D. Transervical embryo recovery on crioula lanada sheep: preliminary results. Animal Reproduction, v. 9. n. 3. p. 558, jul/set, 2012. Publicado no: Proceedings of the 26th Annual Meeting of the Brazilian Embryo Technology Society (SBTE), August 30th to September 2nd, 2012, Foz do Iguaçu, PR, Brazil.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
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6. | | PRADIEÉ, J.; CARDOSO, T. F.; SILVA, E. F.; LAZZARI, J. C.; GONÇALVES, A. O.; MONDADORI, R. G.; PEGORARO, L. M. C.; LUCIA JUNIOR, T. Antioxidants on crioula breend ram semen cryopreservation. Animal Reproduction, v. 9. n. 3. p. 558, jul/set, 2012. Publicado no: Proceedings of the 26th Annual Meeting of the Brazilian Embryo Technology Society (SBTE), August 30th to September 2nd, 2012, Foz do Iguaçu, PR, Brazil.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
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7. | | PRADIEÉ, J.; VIANNA, L. L.; GONÇALVES, A. O.; SANTOS, E. C. da S.; MONDADORI, R. G.; LUCIA JUNIOR, T.; VIEIRA, A. D.; PEGORARO, L. M. C. B-mercaptoetanol na maturação e cultivo in vitro de embriões ovinos. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 25., 2011, Cumbuco. Anais... Cumbuco: SBTE, 2011. p. 411.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
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8. | | FIDELIS, A. A.; DRESCH, R. A.; SIQUEIRA FILHO, E.; MÁXIMO, D. M.; CARVALHO, J. O.; LIM, A. I. P. G.; BLUME, H.; RUMPF, R.; MONDADORI, R. G. Produção In vitro de embriões bubalinos em um sistema comercialmente utilizado em bovinos. Acta Scientiae Veterinariae, v. 36, supl. 2, p. S499, 2008. Edição dos resumos da 22. Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Guarujá, SP, 2008.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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9. | | SACCON, T. D.; MOREIRA, F.; MONDADORI, R. G.; CRUZ, L. A.; BARTKE, A.; MASTERNAK, M. M.; PEGORARO, L. M. C.; SCHNEIDER, A. Characterization of ovarian follicle reserve depletion in Ames dwarf mice. Animal Reproduction, v. 12, n. 3, p. 572, Jul./Sept. 2015. Publicado: Proceedings of the 29th Annual Meeting of the Brazilian Embryo Technology Society (SBTE); Gramado, RS, Brazil, August 20th to 23rd, 2015, and 31st Meeting of the European Embryo Transfer Association (AETE); Ghent, Belgium,...Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
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10. | | SANTOS, E. C. da S.; PRADIEÉ, J.; GONÇALVES, A. O.; MONDADORI, R. G.; LUCIA JUNIOR, T.; VIEIRA, A. D.; PEGORARO, L. M. C. Novo meio para utilização do Brilliant Cresyl Blue na seleção de oócitos para produção in vitro de embriões suínos: dados preliminares. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 25., 2011, Cumbuco. Anais... Cumbuco: SBTE, 2011. p. 427.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
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11. | | VIEIRA, A. D.; QUIRINO, M. S.; GOULARTE, K. L.; FERREIRA, C. E. R.; GASTAL, G. D. A.; PEGORARO, L. M. C.; MONDADORI, R. G.; GASPERIN, B. G. Different embryo collection methods and superovulation protocols in crioula lanada ewes. Animal Reproduction, v. 12, n. 3, p. 685, Jul./Sept. 2015. Publicado: Proceedings of the 29th Annual Meeting of the Brazilian Embryo Technology Society (SBTE); Gramado, RS, Brazil, August 20th to 23rd, 2015, and 31st Meeting of the European Embryo Transfer Association (AETE); Ghent, Belgium,...Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
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12. | | SANTOS, ELISA C. S.; PRADIEÉ, J.; MADEIRA, E. M.; PEREIRA, M. M.; MION, B.; MONDADORI, R. G.; VIEIRA, A. D.; PEGORARO, L. M. C.; LUCIA JUNIOR, T. Selection of porcine oocytes in vitro through brilliant cresyl blue staining in distinct incubation media. Zygote, v. 25, n. 1, p. 49-55, Feb. 2017.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
Biblioteca(s): Embrapa Clima Temperado. |
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13. | | MONDADORI, R. G.; SANTIN, T. R.; FIDELIS, A. A. G.; NAME, K. P. O.; DA SILVA, J. S.; RUMPF, T.; BÁO, S. N. Ultraestrutura da maturação in vitro de oócitos bubalinos (Bubalus bubalis). Acta Scientiae Veterinariae, v. 36, supl. 2, p. S498, 2008. Edição dos resumos da 22. Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Guarujá, SP, 2008.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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15. | | SANTOS, E. C. da S.; MADEIRA, E. M.; MION, B.; PEREIRA, M. M.; SILVA, J. F. da; PRADIEÉ, J.; MONDADORI, R. G.; VIEIRA, A. D.; PEGORARO, L. M. C.; LUCIA JUNIOR, T. Brilliant cresyl blue staining and incubation media can affect the cortical granules migration of swine oocytes. The Journal Reproduction and Development, v. 59, Suppl, p. 137, 2013.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
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16. | | HAAS, C. S.; OLIVEIRA, F. C.; ROVANI, M. T.; FERST, J. G.; VARGAS JUNIOR, S. F.; VIEIRA, A. D.; MONDADORI, R. G.; PEGORARO, L. M. C.; GONÇALVES, P. B. D.; BORDIGNON, V.; FERREIRA, R.; GASPERIN, B. G. Bone morphogenetic protein 15 intrafollicular injection inhibits ovulation in cattle. Theriogenology, v. 182, p. 148-154, 2022. Available online 10 February 2022.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Clima Temperado. |
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17. | | SILVA, S. A.; MONDADORI, R. G.; NOLETO, G. S.; BARBOSA, I. P.; GONÇALVES, R. L.; GASPERIN, B. G.; ROVANI, M. T.; PAZ, E. F.; GOMES, L. S.; PFEIFER, L. F. M. GnRH34 with or without estradiol cypionate in timed AI in Bos indicus beef cows. Theriogenology, v. 209, p. 134-140, 2023.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Rondônia. |
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18. | | SANTOS, E. C. S.; PRADIEÉ, J.; MADEIRA, E. M.; MION, B.; SCHIAVON, R. S.; PEREIRA, M. M.; MONDADORI, R. G.; VIEIRA, A. D.; PEGORARO, L. M. C.; LUCIA JUNIOR, T. Different media for selection of swine oocytes with Brilliant Cresyl Blue ? effects on parthenogenetic embryo development. Animal Reproduction, v.10, n.3, p. 564, Jul./Sept. 2013 Publicado no: roceedings of the 27th Annual Meeting of the Brazilian Embryo Technology Society (SBTE), August 29th to September 1st, 2013, Praia do Forte, BA, Brazil.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
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19. | | SANTOS, E. C. da S.; PRADIEÉ, J.; GONÇALVES, O. de A.; MADEIRA, E. M.; LAZZARI, J. C.; CARDOSO, T. F.; SCHIAVON, R. S.; PEGORARO, L. M. C.; MONDADORI, R. G.; VIEIRA, A. D.; LUCIA JR, T. Different media used for selection of competent swine oocytes with Brilliant cresyl blue staining. Reproduction in Domestic Animals, v. 47, n. 4, p. 531, 2012. Publicado no: Proceedings of the 17th International Congress on Animal Reproduction (ICAR) Vancouver, Canada; 29 July - 2 August 2012.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
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20. | | RINCÓN, J. A. A.; GINDRI, P. C.; MION, B.; FERRONATO, G. de A.; BARBOSA, A. A.; MAFFI, A. S.; PRADIEÉ, J.; MONDADORI, R. G.; CORRÊA, M. N.; PEGORARO, L. M. C.; SCHNEIDER, A. Early embryonic development of bovine oocytes challenged with LPS in vitro or in vivo. Reproduction, v. 158, p. 453?463, 2019.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Clima Temperado. |
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Registros recuperados : 22 | |
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