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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
12/01/2021 |
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Data da última atualização: |
03/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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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. |
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Afiliação: |
JEFERSON FERREIRA DA FONSECA, CNPC. |
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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. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Domestic Animal Endocrinology, v. 74, e106579, 2021. |
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DOI: |
10.1016/j.domaniend.2020.106579 |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Biotecnologia da reprodução; HCG; Ovary; Taxa de prenhez. |
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Thesagro: |
Cabra Leiteira; Caprino; Progesterona; Reprodução Animal; Sincronização do Cio; Ultrassom. |
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Thesaurus Nal: |
Anestrus; Dairy goats; Estrous cycle; Human chorionic gonadotropin; Progesterone; Small ruminants; Toggenburg; Ultrasonography. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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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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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 64 | |
| 5. |  | LEÃO, M.; COSTA, J. V. S.; LIMA, G. S. A. de; FERREIRA, M. E.; WENDLAND, A. Precisão do índice de vegetação da diferença normalizada para identificação de lesões de crestamento bacteriano comum. In: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 13., 2021, Goiânia. Conectividade tecnológica, intensificação sustentável: resumos. Brasília, DF: Embrapa; Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2021. p. 66. Evento online.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 6. | | COSTA, J. V. dos S.; MENDES NETTO, R. S.; SANTOS, A. da S. dos. Questões socioeconômicas e nutricionais do Projeto de Assentamento São Sebastião, Pirambu, Sergipe. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO DA EMBRAPA TABULEIROS COSTEIROS, 2., 2012, Aracaju. Anais... Brasília, DF: Embrapa; Aracaju: Embrapa Tabuleiros Costeiros, 2012. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 9. | | CASTRO, K. N. de C.; TEODORO, M. S.; NASCIMENTO, E. S. do; COSTA, J. V.; MAGALHAES, J. A. Diagnóstico da bovinocultura leiteira conduzida por produtores familiares de Parnaíba, Piauí. In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 21., 2011, Maceió. Inovações tecnológicas e mercado consumidor: anais. Maceió: Associação Brasileira de Zootecnistas, 2011. 3 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 12. | | RESENDE, R. S.; COSTA, J. V. T. da; BARROS JUNIOR, E. P.; AMORIM, J. R. A. de. Comparação de métodos de estimativa de precipitação efetiva em cultivo de cana-de-açúcar. In: INOVAGRI INTERNATIONAL MEETING, 4.; CONGRESSO NACIONAL DE IRRIGAÇÃO E DRENAGEM, 26.; SIMPÓSIO BRASILEIRO DE SALINIDADE, 3., 2017, Fortaleza. Anais... Fortaleza: INOVAGRI: ABID: UFC, 2017.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 16. | | COSTA, J. V. B.; CRUZ, I.; SILVA, R. B. da; FIGUEIREDO, M. de L. C.; MORATO, J. B. Preferência de ninfas de Euborellia annulipes (Lucas) (Dermaptera: Carcinophoridae) por ovos de Anagasta Kuehniella (Zeller) (Lepidoptera: Pyralidae) parasitados ou não por Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae). In: CONGRESSO DE ECOLOGIA DO BRASIL, 10.; SIMPÓSIO DE SUSTENTABILIDADE, 1., 2011, São Lourenço. Sustentabilidade: anais. São Paulo: Sociedade de Ecologia do Brasil, 2011. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 18. | | MOREIRA, A. L.; ALVES, A. A.; ARAÚJO, D. L. C.; MOREIRA FILHO, M. A.; COSTA, J. V.; AZEVEDO, D. M. M. R.; PARENTE, H. N.; ALVES, F. C. The effect of leucaena hay as a source of effective fibre and nutrients in diets with forage palm for finishing sheep in semi-arid regions. Animal Science Journal, v. 92, n. 1, e13508, jan./dez. 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 19. | | PESSOA, M. C. P. Y.; ADAIME, R.; HUTTEMBERGUE, M. C.; MINGOTI, R.; JESUS-BARROS, C. R. de; PARANHOS, B. A. G.; COSTA, J. V. T. A. Desenvolvimento de Fopius arisanus por demandas térmicas em área apta a Bactrocera carambolae no estado do Amapá. In: SILVIA-MATOS, R. S. da; LOPES, J. A.; SILVA, A. L. V. e (org.). Meio ambiente: agricultura, desenvolvimento e sustentabilidade. Ponta Grossa: Atena, 2023. p. 59-72| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Territorial. |
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| 20. | | PESSOA, M. C. P. Y.; ADAIME, R.; HUTTEMBERGUE, M. C.; MINGOTI, R.; JESUS, C. R. de; PARANHOS, B. A. G.; COSTA, J. V. T. A. Desenvolvimento de Fopius arisanus por demandas térmicas em área apta a Bactrocera carambolae no estado do Amapá. In: SILVA-MATOS, R. S. da; LOPES, J. A.; SILVA, A. L. V. e (org.). Meio ambiente: agricultura, desenvolvimento e sustentabilidade. Ponta Grossa: Atena, 2023. p. 59-72| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amapá; Embrapa Meio Ambiente; Embrapa Semiárido. |
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| Registros recuperados : 64 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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