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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 : 10 | |
| 1. |  | BALDISSERA, T. C.; PINTO, C. E.; GARAGORRY, F. C.; DALLA COSTA, M.; PASSOS, J. F. M. dos; LOPES, C. F. Diluição de nitrogênio em azevém-anual em condições de sombreamento e pleno sol. In: WORKSHOP DE CIÊNCIA E INOVAÇÃO EM PECUÁRIA, 2., 2022, Lages. Construindo a pecuária sustentável em Santa Catarina: anais.... Florianópolis: Epagri, 2022. p. 87. (Epagri. Documentos, 355).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 2. | | PASSOS, J. F. M. dos; DALLA COSTA, M.; PINTO, C. E.; GARAGORRY, F. C.; WERNER, S. S.; BALDISSERA, T. C. Bioprospecção de bactérias promotoras de crescimento vegetal em missioneira-gigante. In: SIMPÓSIO DE INTEGRAÇÃO DA PÓS-GRADUAÇÃO, CIÊNCIA, TECNOLOGIA E INOVAÇÃO, 1., 2018, Lages. Anais eletrônicos... Lages: UESC, 2018.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 3. | | BALDISSERA, T. C.; PINTO, C. E.; DALLA COSTA, M.; PASSOS, J. F. M. dos; GARAGORRY, F. C.; SOUZA, J. A. Prospecção de isolados bacterianos para o crescimento e desenvolvimento de missioneira-gigante em sistemas integrados de produção agropecuária. In: CONGRESSO BRASILEIRO DE SISTEMAS INTEGRADOS DE PRODUÇÃO AGROPECUÁRIA, 1.; ENCONTRO DE INTEGRAÇÃO LAVOURA-PECUÁRIA NO SUL DO BRASIL, 4., Pato Branco, 2017, Anais... Cascavel: UTFPR, 2017.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 5. | | COSTA, M. D.; RECH, T. D.; KVITSCHAL, M. V.; SILVA, F. da; FAJARDO, T. V. M.; PASSOS, J. F. M. dos. Regeneração de ápices meristemáticos de culturas in vitro de macieira após tratamento com compostos antivirais. In: SIMPÓSIO DE FRUTICULTURA DA REGIÃO SUL, 3., 2022, Chapecó, SC. Anais...[online]:FRUSUL, 28 a 30 de junho de 2022.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 6. | | PASSOS, J. F. M. dos; COSTA, P. B. da; COSTA, M. D.; ZAFFARI, G. R.; NAVA, G.; BONETI, J. I.; OLIVEIRA, A. M. R. de; PASSAGLIA, L. M. P. Cultivable bacteria isolated from apple trees cultivated under different crop systems: Diversity and antagonistic activity against Colletotrichum gloeosporioides. Genetics and Molecular Biology, v. 37, n. 3, 560-572, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 7. | | PINTO, C. E.; COSTA DALLA, M.; PASSOS, J. F. M. dos; GARAGORRY, F. C.; BETTONI, J. C.; SOUZA, J. A. de; COSTA JUNIOR, N. B.; WERNER, S. S.; BALDISSERA, T. C. Light quality effect on biomass allocation of Axonopus catharinensis Valls. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado. Produção animal para as novas gerações: anais. Viçosa, MG: Sociedade Brasileira de Zootecnia, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 8. | | BALDISSERA, T. C.; DALLA COSTA, M.; PINTO, C. E.; PASSOS, J. F. M. dos; GARAGORRY, F. C.; BETTONI, J. C.; SOUZA, J. A. de; COSTA JUNIOR, N. B.; WERNER, S. S. Leaf morphogenesis and anatomical regulation of Axonopus catharinensis Valls. growing in altered light quality condition. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado. Produção animal para as novas gerações: anais. Viçosa, MG: Sociedade Brasileira de Zootecnia, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 9. | | SILVA, J. G.; PASSOS, J. F.; BAIA, D.; ADAIME, R.; LIMA, K.; ZUCCHI, R. A.; RONCHI-TELES, B.; RUIZ-ARCE, R.; BARR, N. B.; MCPHERON, B. A.; ARAÚJO, E. Genetic diversity in Brazilian populations of Anastrepha obliqua (Macquart) based on mtDNA. In: MEETING OF THE TEPHRITID WORKERS OF THE WESTERN HEMISPHERE, 9th., 2016. Buenos Aires. Book of Abstracts... [Buenos Aires: FAO: AIEA, 2016]. p. 199.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amapá. |
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| 10. | | PASSOS, J. F.; NASCIMENTO, D. B.; MENEZES, R. S. T.; ADAIME, R.; ARAÚJO, E. L.; LIMA, K. M.; ZUCCHI, R. A.; TELES, B. R.; NASCIMENTO, R. R.; ARCE, R. R.; BARR, N. B.; MCPHERON, B. A.; SILVA, J. G. Genetic structure and diversity in Brazilian populations of Anastrepha obliqua (Diptera: Tephritidae). Plos One, v. 13, n. 12, e0208997, p. 1-14, Dec. 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Amapá. |
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| Registros recuperados : 10 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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