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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
12/01/2021 |
Data da última atualização: |
03/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CÔRTES, L. R.; SOUZA-FABJAN, J. M. G.; DIAS, D. S.; MARTINS, B. B.; MAIA, A. L. R. S.; VEIGA, M. O.; ARASHIRO, E. K. N.; BRANDÃO, F. Z.; OLIVEIRA, M. E. F.; BARTLEWSKI, P. M.; FONSECA, J. F. da. |
Afiliação: |
JEFERSON FERREIRA DA FONSECA, CNPC. |
Título: |
Administration of a single dose of 300 IU of human chorionic gonadotropin seven days after the onset of estrus improves pregnancy rate in dairy goats by an unknown mechanism. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Domestic Animal Endocrinology, v. 74, e106579, 2021. |
DOI: |
10.1016/j.domaniend.2020.106579 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: This study examined the effects of exogenous hCG administration on ovarian function and pregnancy rates in estrous-induced dairy goats during the transition into the breeding season. Eighty-six Toggenburg does received 60 mg of medroxyprogesterone acetate intravaginal sponge for 6 d plus 200 IU of equine chorionic gonadotropin and 30 ?g of d-cloprostenol i.m. 24 h before sponge removal, and were then bred for 96 h. Seven days (D7) after first mating the does received either 1 mL of saline (the control group, n = 43) or 300 IU of hCG (the hCG-treated group, n = 43) i.m. Transrectal ovarian ultrasonography (B-mode and color Doppler) was performed on D7, D13, D17, and D21 and ultrasonographic pregnancy detection on D30. Pregnancy rate was higher (P < 0.05) in hCG-treated goats (90.7%; 39/43) than that in control animals (74.4%; 32/43). Accessory luteal structures (ALSs) were detected in 46.5% (20/43) of hCG-treated does. All hCG-treated does that had ALSs and 82.6% of goats without ALS post-treatment remained pregnant. The total luteal area increased (P < 0.05) from D7 to D13 in pregnant animals of both groups, whereas mean vascular area declined (P < 0.05) by D21 in all nonpregnant does. Serum progesterone concentrations increased (P < 0.05) on D21 in pregnant goats of both groups, but they were related to changes in luteal tissue content only in control does throughout the present study. Mean daily numbers of small- and medium-sized antral follicles decreased (P < 0.05) only in pregnant animals of both groups with a decline in medium follicle numbers occurring earlier in hCG-treated (D13) compared with control does (D17). To summarize, a single dose of hCG given on D7 after estrus was followed by a decrease in the number of medium-sized antral follicles in gestating hCG-treated does, induced the formation of ALSs in ~47% of all hCG-treated does, and significantly increased the pregnancy rate in estrous-induced Toggenburg goats in the transition to the breeding season. MenosAbstract: This study examined the effects of exogenous hCG administration on ovarian function and pregnancy rates in estrous-induced dairy goats during the transition into the breeding season. Eighty-six Toggenburg does received 60 mg of medroxyprogesterone acetate intravaginal sponge for 6 d plus 200 IU of equine chorionic gonadotropin and 30 ?g of d-cloprostenol i.m. 24 h before sponge removal, and were then bred for 96 h. Seven days (D7) after first mating the does received either 1 mL of saline (the control group, n = 43) or 300 IU of hCG (the hCG-treated group, n = 43) i.m. Transrectal ovarian ultrasonography (B-mode and color Doppler) was performed on D7, D13, D17, and D21 and ultrasonographic pregnancy detection on D30. Pregnancy rate was higher (P < 0.05) in hCG-treated goats (90.7%; 39/43) than that in control animals (74.4%; 32/43). Accessory luteal structures (ALSs) were detected in 46.5% (20/43) of hCG-treated does. All hCG-treated does that had ALSs and 82.6% of goats without ALS post-treatment remained pregnant. The total luteal area increased (P < 0.05) from D7 to D13 in pregnant animals of both groups, whereas mean vascular area declined (P < 0.05) by D21 in all nonpregnant does. Serum progesterone concentrations increased (P < 0.05) on D21 in pregnant goats of both groups, but they were related to changes in luteal tissue content only in control does throughout the present study. Mean daily numbers of small- and medium-sized antral follicles decreased (P < 0... Mostrar Tudo |
Palavras-Chave: |
Biotecnologia da reprodução; HCG; Ovary; Taxa de prenhez. |
Thesagro: |
Cabra Leiteira; Caprino; Progesterona; Reprodução Animal; Sincronização do Cio; Ultrassom. |
Thesaurus Nal: |
Anestrus; Dairy goats; Estrous cycle; Human chorionic gonadotropin; Progesterone; Small ruminants; Toggenburg; Ultrasonography. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 03432naa a2200469 a 4500 001 2129228 005 2021-08-03 008 2021 bl uuuu u00u1 u #d 024 7 $a10.1016/j.domaniend.2020.106579$2DOI 100 1 $aCÔRTES, L. R. 245 $aAdministration of a single dose of 300 IU of human chorionic gonadotropin seven days after the onset of estrus improves pregnancy rate in dairy goats by an unknown mechanism.$h[electronic resource] 260 $c2021 520 $aAbstract: This study examined the effects of exogenous hCG administration on ovarian function and pregnancy rates in estrous-induced dairy goats during the transition into the breeding season. Eighty-six Toggenburg does received 60 mg of medroxyprogesterone acetate intravaginal sponge for 6 d plus 200 IU of equine chorionic gonadotropin and 30 ?g of d-cloprostenol i.m. 24 h before sponge removal, and were then bred for 96 h. Seven days (D7) after first mating the does received either 1 mL of saline (the control group, n = 43) or 300 IU of hCG (the hCG-treated group, n = 43) i.m. Transrectal ovarian ultrasonography (B-mode and color Doppler) was performed on D7, D13, D17, and D21 and ultrasonographic pregnancy detection on D30. Pregnancy rate was higher (P < 0.05) in hCG-treated goats (90.7%; 39/43) than that in control animals (74.4%; 32/43). Accessory luteal structures (ALSs) were detected in 46.5% (20/43) of hCG-treated does. All hCG-treated does that had ALSs and 82.6% of goats without ALS post-treatment remained pregnant. The total luteal area increased (P < 0.05) from D7 to D13 in pregnant animals of both groups, whereas mean vascular area declined (P < 0.05) by D21 in all nonpregnant does. Serum progesterone concentrations increased (P < 0.05) on D21 in pregnant goats of both groups, but they were related to changes in luteal tissue content only in control does throughout the present study. Mean daily numbers of small- and medium-sized antral follicles decreased (P < 0.05) only in pregnant animals of both groups with a decline in medium follicle numbers occurring earlier in hCG-treated (D13) compared with control does (D17). To summarize, a single dose of hCG given on D7 after estrus was followed by a decrease in the number of medium-sized antral follicles in gestating hCG-treated does, induced the formation of ALSs in ~47% of all hCG-treated does, and significantly increased the pregnancy rate in estrous-induced Toggenburg goats in the transition to the breeding season. 650 $aAnestrus 650 $aDairy goats 650 $aEstrous cycle 650 $aHuman chorionic gonadotropin 650 $aProgesterone 650 $aSmall ruminants 650 $aToggenburg 650 $aUltrasonography 650 $aCabra Leiteira 650 $aCaprino 650 $aProgesterona 650 $aReprodução Animal 650 $aSincronização do Cio 650 $aUltrassom 653 $aBiotecnologia da reprodução 653 $aHCG 653 $aOvary 653 $aTaxa de prenhez 700 1 $aSOUZA-FABJAN, J. M. G. 700 1 $aDIAS, D. S. 700 1 $aMARTINS, B. B. 700 1 $aMAIA, A. L. R. S. 700 1 $aVEIGA, M. O. 700 1 $aARASHIRO, E. K. N. 700 1 $aBRANDÃO, F. Z. 700 1 $aOLIVEIRA, M. E. F. 700 1 $aBARTLEWSKI, P. M. 700 1 $aFONSECA, J. F. da 773 $tDomestic Animal Endocrinology$gv. 74, e106579, 2021.
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Embrapa Caprinos e Ovinos (CNPC) |
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Registros recuperados : 157 | |
5. | | OLIVARES, C.; FONSECA, J. F. da; SARAIVA, H.; ALFRADIQUE, V.; CÔRTES, L.; COSTA, L.; BRANDÃO, F.; SOUZA-FABJAN, J. M. Influence of Mini-Percoll techniques on motility parameters of ram frozen-thawed sperm. In: INTERNATIONAL CONGRESS OF ANIMAL REPRODUCTION, 18., 2016, Tours. Abstracts... Tous: Society for Reprocutive Biololy, 2016. p. 168-169. Abstract PW171 Poster.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Caprinos e Ovinos. |
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7. | | MORAIS, M. C. C.; ARRAIS, A. M.; SILVA, N. C.; OLIVEIRA, M. E. F.; SOUZA-FABJAN, J. M. G.; FONSECA, J. F. da. Association of controlled light program, cloprostenol and gonadotropins for synchronous estrus induction and fixed time artificial insemination in dairy goats during the non-breeding season: preliminary results. Animal Reproduction, v. 17, n. 3, 2020. Edição dos Abstracts of the 34nd Annual Meeting of the Brazilian Embryo Technology Society (SBTE), 2020 (online).Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Caprinos e Ovinos. |
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8. | | PINTO, P. H. N.; FREITAS, J. A.; FONSECA, J. D.; PILE, E. A.; ESTEVES, L. V.; SOUZA, V. L.; SOUZA-FABJAN, J. M. G.; FONSECA, J. F. da. Artificial insemination in Cape Verdean Goats with cooled semen stored for 24 or 48 Hours. Australian Journal of Basic and Applied Sciences, v. 8, n. 18, p. 473-478, Dec. 2014.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
Biblioteca(s): Embrapa Caprinos e Ovinos. |
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10. | | MARTINS, B. B.; SOUZA-FABJAN, J. M. G.; DIÓGENES, Y. P.; OLIVEIRA, T. de A.; VIANA, J. H. M.; FONSECA, J. F. da. Cenário histórico da transferência de embriões de caprinos no Brasil: relatos técnicos científicos. Revista Brasileira de Reprodução Animal, v. 43, n. 2, p. 556, abr./jun. 2019. Edição dos resumos do XXIII Congresso Brasileiro de Reprodução Animal, Gramado, RS, Brasil, 15 a 17 de maio 2019.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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11. | | MARTINS, B. B.; SOUZA-FABJAN, J. M. G.; DIÓGENES, Y. P.; OLIVEIRA, T. de A.; VIANA, J. H. M.; FONSECA, J. F. da. Cenário histórico da transferência de embriões de caprinos no Brasil: relatos técnicos científicos. Revista Brasileira de Reprodução Animal, v. 43, n. 2, p. 556, abr./jun. 2019. Edição dos resumos do XXIII Congresso Brasileiro de Reprodução Animal, Gramado, RS, Brasil, 15 a 17 de maio 2019.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Caprinos e Ovinos. |
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12. | | FONSECA, J. F. da; ZAMBRINI, F. N.; GUIMARÃES, J. D.; SILVA, M. R.; OLIVEIRA, M. E. F.; BARTLEWSKI, P. M.; SOUZA-FABJAN, J. M. G. Cervical penetration rates and efficiency of non-surgical embryo recovery in estrous-synchronized Santa Inês ewes after administration of estradiol ester (benzoate or cypionate) in combination with d-cloprostenol and oxytocin. Animal Reproduction Science, v. 203, p. 25-32, Apr. 2019.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Gado de Leite. |
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13. | | LEITE, C. R.; FONSECA, J. F. da; FERNANDES, D. A. M.; SOUZA-FABJAN, J. M. G.; ASCOLI, F. O.; BRANDÃO, F. Z. Cervical relaxation for non-surgical uterus access in Santa Inês ewes. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, v.70, n. 6, p. 1671-1679, 2018.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Caprinos e Ovinos. |
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14. | | FONSECA, J. F. da; MACHADO, V. de O.; PAIVA, M. P. S. L. M. de; FACO, O.; SOUZA-FABJAN, J. M. G. Recent advances in goat artificial insemination in Brazil. Revista Brasileira de Reprodução Animal, v. 43, n. 2, p. 66-71, abr./jun. 2019. Edição dos anais do XXIII Congresso Brasileiro de Reprodução Animal, Gramado, RS, Brasil, 15 a 17 de maio 2019.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Caprinos e Ovinos. |
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16. | | FONSECA, J. F. da; ALVIM, G. P.; SOUZA-FABJAN, J. M. G.; OLIVEIRA, M. E. F.; BRAIR, V. L.; BRANDÃO, F. Z.; FACO, O. Reproductive features and use of an anti-inflammatory drug in estrus-induced dairy goats artificially inseminated in a standing position with cervix immobilization. Reproductive Biology, Olsztyn, v. 17, n. 3, p. 268-273, Sep. 2017.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Caprinos e Ovinos. |
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17. | | MAIA, A. L. R. S.; BRANDÃO, F. Z.; SOUZA-FABJAN, J. M. G.; BALARO, M. F. A.; OLIVEIRA, M. E. F.; FACO, O.; FONSECA, J. F. da. Reproductive parameters of dairy goats after receiving two doses of d-cloprostenol at different intervals. Animal Reproduction Science, v. 1981, p. 16-23, June, 2017.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Caprinos e Ovinos. |
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18. | | FONSECA, J. F. da; SOUZA-FABJAN, J. M. G.; OLIVEIRA, M. E. F.; LEITE, C. R.; NASCIMENTO-PENIDO, P. M. P.; BRANDÃO, F. Z.; LEHLOENYA, K. C. Nonsurgical embryo recovery and transfer in sheep and goats. Theriogenology, New York, v. 86, n. 1, p. 144-151, Jul. 2016.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Caprinos e Ovinos. |
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19. | | FONSECA, J. F. da; OLIVEIRA, M. E. F.; BRANDÃO, F. Z.; BATISTA, R. I. T. P.; GARCIA, A. R.; BARTLEWSKIE, P. M.; SOUZA-FABJAN, J. M. G. Non-surgical embryo transfer in goats and sheep: the Brazilian experience. Reproduction Fertility and Development, v. 31, n. 1 p. 17-26, Dec. 2019.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Pecuária Sudeste. |
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20. | | FIQUEIRA, L. M.; FONSECA, J. F. da; ARASHIRO, E.; SOUZA-FABJAN, J.; RIBEIRO, A.; OBA, E.; VIANA, J.; BRANDÃO, F. Z. Colour Doppler ultrasonography as a tool to assess luteal function in santa Inês ewes. Reproduction in Domestic Animals, Berlin, v. 50, n. 4, p. 643-650, May, 2015.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Caprinos e Ovinos. |
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