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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
13/11/2020 |
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Data da última atualização: |
13/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VERGANI, G. B.; FONSECA, J. F. da; TREVIZAN, J. T.; PEREIRA, V. S. do A.; GARCIA, A. R.; GARCIA, A. R.; BRANDÃO. F. Z.; SOUZA-FABJAN, J. M. G.; OLIVEIRA, M. E. F. |
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Afiliação: |
GABRIEL BRUN VERGANI; JEFERSON FERREIRA DA FONSECA, CNPC; JULIANE TERAMACHI TREVIZAN; VERONICA SCHINAIDER DO A PEREIRA, CPPSE; ALEXANDRE ROSSETTO GARCIA, CPPSE; ALEXANDRE ROSSETTO GARCIA; FELIPE ZANDONADI BRANDÃO; JOANNA MARIA GONÇALVES SOUZA-FABJAN; MARIA EMILIA FRANCO OLIVEIRA. |
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Título: |
Luteotropic effects of human chorionic gonadotropin administered 7.5 days after synchronous estrous induction in Morada Nova ewes. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Animal Reproduction Science, v. 223, article 106644, Dec. 2020. |
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DOI: |
https://doi.org/10.1016/j.anireprosci.2020.106644 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This study was conducted in ewes to assess effects of human chorionic gonadotropin (hCG) administration after imposing an estrous induction treatment regimen. Ewes (n = 115) were treated with a 60 mg medroxyprogesterone-intravaginal-sponge for 6 d plus 200 IU of equine chorionic gonadotropin (eCG) im and 37.5 ?g d-cloprostenol im 36 h before sponge removal (Day 0). After natural mating, ewes having at least one corpus luteum (CL; n = 108) were administered either 1 mL of saline (G-Control; n = 53) or 300 IU of hCG (G-hCG; n = 55) on Day 7.5 after sponge removal (Day 0). Ovarian ultrasonography and blood collection were performed on Days 7.5, 13.5, 17.5, 21.5, and 30.5. Accessory CL (aCL) were observed in 81.5 % (G-hCG) and 0.0 % (G-Control) of ewes (P = 0.0001). Diameter, area, and volume of luteal tissue were greater (P < 0.05) in G-hCG from Day 13.5 to 30.5. Progesterone (P4) concentrations were greater (P < 0.05) on Days 13.5, 17.5, 21.5 and 30.5 for ewes of the G-hCG group. Pregnancy percentage was similar (P = 0.25) between groups [47.1 % (G-control) compared with 60.0 % (G-hCG)], although total number of lambs produced by estrous synchronized ewes was greater (P = 0.005) in ewes of the G-hCG group (90.9 % compared with 66.0 %). In conclusion, hCG administration 7.5 days after sponge removal from Morada Nova ewes during the non-breeding season is an effective treatment to induce aCL formation, improve luteal tissue biometry and P4 concentrations, and to enhance the total number of lambs born. MenosAbstract: This study was conducted in ewes to assess effects of human chorionic gonadotropin (hCG) administration after imposing an estrous induction treatment regimen. Ewes (n = 115) were treated with a 60 mg medroxyprogesterone-intravaginal-sponge for 6 d plus 200 IU of equine chorionic gonadotropin (eCG) im and 37.5 ?g d-cloprostenol im 36 h before sponge removal (Day 0). After natural mating, ewes having at least one corpus luteum (CL; n = 108) were administered either 1 mL of saline (G-Control; n = 53) or 300 IU of hCG (G-hCG; n = 55) on Day 7.5 after sponge removal (Day 0). Ovarian ultrasonography and blood collection were performed on Days 7.5, 13.5, 17.5, 21.5, and 30.5. Accessory CL (aCL) were observed in 81.5 % (G-hCG) and 0.0 % (G-Control) of ewes (P = 0.0001). Diameter, area, and volume of luteal tissue were greater (P < 0.05) in G-hCG from Day 13.5 to 30.5. Progesterone (P4) concentrations were greater (P < 0.05) on Days 13.5, 17.5, 21.5 and 30.5 for ewes of the G-hCG group. Pregnancy percentage was similar (P = 0.25) between groups [47.1 % (G-control) compared with 60.0 % (G-hCG)], although total number of lambs produced by estrous synchronized ewes was greater (P = 0.005) in ewes of the G-hCG group (90.9 % compared with 66.0 %). In conclusion, hCG administration 7.5 days after sponge removal from Morada Nova ewes during the non-breeding season is an effective treatment to induce aCL formation, improve luteal tissue biometry and P4 concentrations, and to enhanc... Mostrar Tudo |
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Palavras-Chave: |
Accessory corpora lutea; HCG; Luteal vascularization; Oestrous cycle; Ovarian ultrasonography. |
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Thesagro: |
Ciclo Estral; Corpo Lúteo; Ovino; Progesterona; Reprodução Animal. |
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Thesaurus Nal: |
Animal reproduction; Estrous cycle; Progesterone; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02749naa a2200397 a 4500
001 2126601
005 2020-11-13
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.anireprosci.2020.106644$2DOI
100 1 $aVERGANI, G. B.
245 $aLuteotropic effects of human chorionic gonadotropin administered 7.5 days after synchronous estrous induction in Morada Nova ewes.$h[electronic resource]
260 $c2020
520 $aAbstract: This study was conducted in ewes to assess effects of human chorionic gonadotropin (hCG) administration after imposing an estrous induction treatment regimen. Ewes (n = 115) were treated with a 60 mg medroxyprogesterone-intravaginal-sponge for 6 d plus 200 IU of equine chorionic gonadotropin (eCG) im and 37.5 ?g d-cloprostenol im 36 h before sponge removal (Day 0). After natural mating, ewes having at least one corpus luteum (CL; n = 108) were administered either 1 mL of saline (G-Control; n = 53) or 300 IU of hCG (G-hCG; n = 55) on Day 7.5 after sponge removal (Day 0). Ovarian ultrasonography and blood collection were performed on Days 7.5, 13.5, 17.5, 21.5, and 30.5. Accessory CL (aCL) were observed in 81.5 % (G-hCG) and 0.0 % (G-Control) of ewes (P = 0.0001). Diameter, area, and volume of luteal tissue were greater (P < 0.05) in G-hCG from Day 13.5 to 30.5. Progesterone (P4) concentrations were greater (P < 0.05) on Days 13.5, 17.5, 21.5 and 30.5 for ewes of the G-hCG group. Pregnancy percentage was similar (P = 0.25) between groups [47.1 % (G-control) compared with 60.0 % (G-hCG)], although total number of lambs produced by estrous synchronized ewes was greater (P = 0.005) in ewes of the G-hCG group (90.9 % compared with 66.0 %). In conclusion, hCG administration 7.5 days after sponge removal from Morada Nova ewes during the non-breeding season is an effective treatment to induce aCL formation, improve luteal tissue biometry and P4 concentrations, and to enhance the total number of lambs born.
650 $aAnimal reproduction
650 $aEstrous cycle
650 $aProgesterone
650 $aSheep
650 $aCiclo Estral
650 $aCorpo Lúteo
650 $aOvino
650 $aProgesterona
650 $aReprodução Animal
653 $aAccessory corpora lutea
653 $aHCG
653 $aLuteal vascularization
653 $aOestrous cycle
653 $aOvarian ultrasonography
700 1 $aFONSECA, J. F. da
700 1 $aTREVIZAN, J. T.
700 1 $aPEREIRA, V. S. do A.
700 1 $aGARCIA, A. R.
700 1 $aGARCIA, A. R.
700 1 $aBRANDÃO. F. Z.
700 1 $aSOUZA-FABJAN, J. M. G.
700 1 $aOLIVEIRA, M. E. F.
773 $tAnimal Reproduction Science$gv. 223, article 106644, Dec. 2020.
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| 1. |  | STEEGE, H. ter; PITMAN, N. C. A.; KILEEN, T. J.; LAURANCE, W. F.; PERES, C. A.; GUEVARA, J. E.; SALOMÃO, R. P.; CASTILHO, C. V.; AMARAL, I. L.; MATOS, F. D. de A.; COELHO, L. de S.; MAGNUSSON, W. E.; PHILIPS, O. L.; LIMA FILHO, D. de A.; CARIM, M. de J. V.; IRUME, M. V.; MARTINS, M. P.; MOLINO, J.-F.; SABATIER, D.; WITTMANN, F.; CÁRDENAS LÓPEZ, D.; GUIMARÃES, J. R. da S.; MONTEAGUDO MENDOZA, A.; NÚÑEZ VARGAS, P.; MANZATTO, A. G.; REIS, N. F. C.; TERBORGH, J.; CASULA, K. R.; MONTERO, J. C.; FELDPAUSCH, T. R.; CORONADO, E. N. H.; MONTOYA, A. J. D.; ZARTMAN, C. E.; MOSTACEDO, B.; VASQUEZ, R.; ASSIS, R. L.; MEDEIROS, M. B.; SIMON, M. F.; ANDRADE, A.; CAMARGO, J. L.; LAURANCE, S. G. W.; NASCIMENTO, H. E. M.; MARIMON, B. S.; MARIMON JUNIOR, B.-H.; COSTA, F.; TARGHETTA, N.; VIEIRA, I. C. G.; BRIENEN, R.; CASTELLANOS, H.; DUIVENVOORDEN, J. F.; MOGOLLÓN, H. F.; PIEDADE, M. T. F.; AYMARD C. G. A.; COMISKEY, J. A.; DAMASCO, G.; DÁVILA, N.; GARCÍA-VILLACORTA, R.; DIAZ, P. R. S.; VINCENTINI, A.; EMILIO, T.; LEVIS, C.; SCHIETTI, J.; SOUZA, P.; ALONSO, A.; DALLMEIER, F.; FERREIRA, L. V.; NEILL, D.; ARAUJO-MURAKAMI, A.; ARROYO, L.; CARVALHO, F. A.; SOUZA, F. C.; AMARAL, D. D. do; GRIBEL, R.; LUIZE, B. G.; PANSONATO, M. P.; VENTICINQUE, E.; FINE, P.; TOLEDO, M.; BARALOTO, C.; CERÓN, C.; ENGEL, J.; HENKEL, T. W.; JIMENEZ, E. M.; MAAS, P.; PEÑUELA MORA, M. C.; PETRONELLI, P.; REVILLA, J. D. C.; SILVEIRA, M.; STROPP, J.; THOMAS-CAESAR, R.; BAKER, T. R.; DALY, D.; PAREDES, M. R.; SILVA, N. F. da; FUENTES, A.; JORGENSEN, P. M.; SCHÖNGART, J.; SILMAN, M. R.; CASTAÑO ARBOLEDA, N.; CINTRA, B. B. L.; VALVERDE, F. C.; DI FIORE, A.; PHILLIPS, J. F.; ANDEL, T. R. van; HILDEBRAND, P. von; BARBOSA, E. M.; BONATES, L. C. de M.; CASTRO, D. de; FARIAS, E. de S.; GONZALES, T.; GUILLAUMET, J.-L.; HOFFMAN, B.; MALHI, Y.; MIRANDA, I. P. de A.; PRIETO, A.; RUDAS, A.; RUSCHEL, A. R.; SILVA, N.; VELA, C. I. A.; VOS, V. A.; ZENT, E. L.; ZENT, S.; CANO, A.; NASCIMENTO, M. T.; OLIVEIRA, A. A.; RAMIREZ-ANGULO, H.; RAMOS, J. F.; SIERRA, R.; TIRADO, M.; UMAÑA MEDINA, M. N.; HEIJDEN, G. van der; TORRE, E. V.; VRIESENDORP, C.; WANG, O.; YOUNG, K. R.; BAIDER, C.; BALSLEV, H.; CASTRO, N. de; FARFAN-RIOS, W.; FERREIRA, C.; MENDOZA, C.; MESONES, I.; TORRES-LEZAMA, A.; GIRALDO, L. E. U.; VILLARROEL, D.; ZAGT, R.; ALEXIADES, M. N.; GARCIA-CABRERA, K.; HERNANDEZ, L.; HUAMANTUPA-CHUQUIMACO, I.; MILLIKEN, W.; CUENCA, W. P.; PANSINI, S.; PAULETTO, D.; AREVALO, F. R.; SAMPAIO, A. F.; SANDOVAL, E. H. V.; GAMARRA, L. V. Estimating the global conservation status of more than 15,000 Amazonian tree species. Science Advances, v. 1, n. 10, e1500936, Nov. 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
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