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| Registros recuperados : 28 | |
| 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.| Biblioteca(s): Embrapa Rondônia. |
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| 3. | | ALMEIDA, H. S. L. de; PIRES, C. C.; GALVANI, D. B.; LIMA, R. F de; HASTENPFLUG, M.; GASPERIN, B. G. Características de carcaça de cordeiros Ideal e cruzas Border Leicester x Ideal submetidos a três sistemas alimentares. Ciência Rural, Santa Maria, RS, v. 36, n. 5, p. 1546-1552,set./out. 2006.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 4. | | HÜBNER, C. H.; PIRES, C. C.; GALVANI, D. B.; CARVALHO, S.; JOCHIMS, F.; WOMMER, T. F.; GASPERIN, B. G. Comportamento ingestivo de ovelhas em lactação alimentadas com dietas contendo diferentes níveis de fibra em detergente neutro. Ciência Rural, v. 38, n. 4, p. 1078-1084, jul. 2008.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 5. | | GASPERIN, B. G.; FRELING, G. F.; FERREIRA, R.; OLIVEIRA, J. F. C. de; BORDIGNON, V.; GONÇALVES, P. B. D. Intravaginal progestagen for estrus and parturition control in sows. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 8, p. 961-964, ago. 2011. Notas Científicas.
Título em português: Progestágeno intravaginal para controle do estro e do parto em fêmeas suínas.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 7. | | RINCÓN, J. A. A.; CAMPOS, F. T. DE; ACOSTA, D. A.; SILVEIRA, P. A. S.; GASPERIN, B. G.; CORREA, M. N.; PEGORARO, L. M. C.; SCHNEIDER, A. The effect of lipopolysaccharides on the expression of genes involved in steroidogenesis and inflammatory response in bovine granulosa cells. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 30., 2016, Foz do Iguaçu. Anais... Publicado na revista Animal Reproduction, v. 13, n. 3, p. 529, Jul./Sept. 2016.| Biblioteca(s): Embrapa Clima Temperado. |
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| 8. | | RINCÓN, J. A. A.; PREDIEÉ, J.; REMIÃO, M. H.; COLLARES, T. V.; MION, B.; GASPERIN, B. G.; ROVANI, M, T.; CORRÊA, M, N.; PEGORARO, L. M. C. Effect of high-density lipoprotein on oocyte maturation and bovine embryo development in vitro Reproduction in Domestic Animals, v.54, p. 445?455, 2019.| Biblioteca(s): Embrapa Clima Temperado. |
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| 9. | | RINCÓN, J. A. A.; MION, B.; ACOSTA, D. A. V.; GASPERIN, B. G.; ROVANI, M. T.; PEGORARO, L. M. C.; CORRÊA, M. N.; SCHNEIDER, A. Effect of recombinant bovine somatotropin (rbST) treatment on follicular population and development in non-lactating dairy cows. Animal Reproduction, v. 16, n. 4. p. 1-9, 2019.| Biblioteca(s): Embrapa Clima Temperado. |
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| 10. | | FERREIRA, C. E. R.; HAAS, C. S.; GOULARTE, K. L.; ROVANI, M. T.; CARDOSO, F. F.; SCHNEIDER, A.; GASPERIN, B. G.; LUCIA JUNIOR, T. Expression of paraoxonase types 1, 2 and 3 in reproductive tissues and activity of paraoxonase type 1 in the serum and seminal plasma of bulls. Andrologia, v. 50, n. 3, e12923, Apr. 2018.| Biblioteca(s): Embrapa Pecuária Sul. |
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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,...| Biblioteca(s): Embrapa Clima Temperado. |
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| 13. | | GALVANI, D. B.; PIRES, C. C.; CARDOSO, A. R.; CARVALHO, S.; GASPERIN, B. G.; HÜBNER, C. H.; GARCIA, R. P. A.; VARGAS, A. da R. Efeito de diferentes níveis de FDN sobre o peso e rendimento de carcaça de cordeiros terminados em confinamento. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 42., 2005, Goiânia. A produção animal e o foco no agronegócio: anais. Goiânia: Sociedade Brasileira de Zootecnia, 2005. 5 f. CD ROM.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 14. | | VARGAS JÚNIOR, S. F.; COSTA, V. G. G.; OLIVEIRA, F. C. de; GOULARTE, K. L.; HAAS, C. S.; GASPERIN, B. G.; LUCIA JÚNIOR, T. Bovine sperm cell motility after incubation in follicular fluid; Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 7, p. 866-869, July, 2018. Scientific Notes.
Título em português: Motilidade de espermatozoides bovinos após incubação em fluído folicular.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 15. | | HÜBNER, C. H.; PIRES, C. C.; CARVALHO, S.; GALVANI, D. B.; GASPERIN, B. G.; WOMMER, T. P.; JOCHIMS, F.; GRACIOLI, N.; HÖRST, F. G. Produção de leite de ovelhas Texel alimentadas com dietas contendo diferentes níveis de fibra em detergente neutro durante as seis primeiras semanas de lactação. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 42., 2005, Goiânia. A produção animal e o foco no agronegócio: anais. Goiânia: Sociedade Brasileira de Zootecnia, 2005. 4 f. CD ROM.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 16. | | VOGG, A. P. D.; OLIVEIRA, F. C. de; HAAS, C. S.; PEGORARO, L. M. C.; VIEIRA, A. D.; GASPERIN, B. G. Treinamento em ultrassonografia aplicada à ginecologia de fêmeas bovinas com foco em pequenas propriedades. In: CONGRESSO DE EXTENSÃO E CULTURA, 2.; SEMANA INTEGRADA ENSINO PESQUISA EXTENSÃO da UFPel, 2015, Pelotas. [Anais.]. Pelotas: UFPel, 2015.| Biblioteca(s): Embrapa Clima Temperado. |
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| 17. | | BARBOSA, I. P.; CESTARO, J. P.; SILVA, S. A.; NOLETO, G. S.; GONÇALVES, R. L.; SILVA, G. M.; PAES, F. H.; GASPERIN, B. G.; ROVANI, M. T.; PFEIFER, L. F. M. GnRH34: an alternative for increasing pregnancy in timed AI beef cows. Theriogenology, v. 179, p. 1-254, Feb. 2022.| Biblioteca(s): Embrapa Rondônia. |
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| 18. | | 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.| Biblioteca(s): Embrapa Rondônia. |
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| 19. | | FERREIRA, C. E. R.; CAMPOS, G. S.; SCHMIDT, P. I.; SOLLERO, B. P.; GOULARTE, K. L.; CORCINI, C. D.; GASPERIN, B. G.; LUCIA JUNIOR, T.; BOLIGON, A. A.; CARDOSO, F. F. Genome-wide association and genomic prediction for scrotal circumference in Hereford and Braford bulls. Theriogenology, v. 172, p. 268-280, Sept. 2021.| Biblioteca(s): Embrapa Pecuária Sul. |
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| 20. | | CAMPOS, F. T. de; RINCON, J. A. A.; ACOSTA, D. A. V.; SILVEIRA, P. A. S.; PRADIEÉ, J.; CORRÊA, M. N.; GASPERIN, B. G.; PFEIFER, L. F. M.; BARROS, C. C.; PEGORARO, L. M. C.; SCHNEIDER, A. The acute effect of intravenous lipopolysaccharide injection on serumand intrafollicular HDL components and gene expression in granulosacells of the bovine dominant follicle. Theriogenology, v. 89, p. 244 - 249, 2017.| Biblioteca(s): Embrapa Clima Temperado; Embrapa Rondônia. |
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| Registros recuperados : 28 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Rondônia. |
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Data corrente: |
29/06/2023 |
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Data da última atualização: |
18/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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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. |
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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. |
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Título: |
GnRH34 with or without estradiol cypionate in timed AI in Bos indicus beef cows. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Theriogenology, v. 209, p. 134-140, 2023. |
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ISSN: |
0093-691X |
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DOI: |
https://doi.org/10.1016/j.theriogenology.2023.06.026 |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Amazônia Ocidental; Embrapa Rondôna; Western Amazon. |
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Thesagro: |
Bos Indicus; Campo Experimental; Estradiol; Fertilidade Animal; Gado Nelore; Hormônio; Ovulação; Prenhez; Reprodução Animal; Vaca de Corte. |
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Thesaurus NAL: |
Animal fertility; Animal reproduction; Beef cows; Demonstration farms; Hormones; Nellore; Ovulation; Pregnancy. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154705/1/cpafro-18957.pdf
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Marc: |
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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
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650 $aEstradiol
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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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