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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
19/07/2018 |
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Data da última atualização: |
19/07/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FONSECA, J. F. da; CASTRO, A. C. R.; ARASHIRO, E. K. N.; OLIVEIRA, M. E. F.; ZAMBRINI, F. N.; ESTEVES, L. V.; BRANDÃO, F. Z.; SOUZA-FABJAN, J. M. G. |
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Afiliação: |
Jeferson Ferreira da Fonseca, CNPC; Ana Carolina Rosa Castro; Eduardo Kenji Nunes Arashiro, Fluminense Federal University (UFF) - Niterói, RJ, Brazil; Maria Emilia Franco Oliveira, São Paulo State University (Unesp) - Jaboticabal, São Paulo, Brazil; Fabiana Nunes Zambrini, Federal University of Viçosa (UFV) - Viçosa, MG, Brazil; Luciana Vieira Esteves, Fluminense Federal University (UFF) - Niterói, RJ, Brazil; Felipe Zandonadi Brandão, Fluminense Federal University (UFF) - Niterói, RJ, Brazil; Joanna Maia Gonçalves Souza-Fabjan, Fluminense Federal University (UFF) - Niterói, RJ, Brazil. |
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Título: |
Effects of hCG administration on accessory corpus luteum formation and progesterone production in estrous-induced nulliparous Santa Inês ewes. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Animal Reproduction, v. 15, n. 2, p. 135-139, Apr./Jun. 2018. |
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DOI: |
DOI: 10.21451/1984-3143-AR2017-957 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The effect of hCG administration on accessory corpus luteum (ACL) formation, CL area, and plasma progesterone (P4) concentration (ng/mL) seven days after breeding was studied in nulliparous Santa Inês sheep. Intravaginal 60 mg MAP sponges were inserted into ewes for six days and 300 IU eCG i.m. and 30 ?g d-cloprostenol latero-vulvar were administered 24 h before sponge removal. Ewes were naturally bred and, seven days after first mating (Day 0; D0), were treated with either 250 IU hCG (hCG group; n = 7) or 1 mL saline solution (control group; n = 7). Blood was collected to determine plasma P4 concentrations and sonograms were performed on Days 7, 10, 13, 16, 19, and 22. Number of CL on D7 was similar (P > 0.05) between hCG (1.3 ± 0.5) and control (1.3 ± 0.5) groups; however, on D13, it was greater (P < 0.05) in the hCG group (2.3 ± 0.5) than in the control group (1.3 ± 0.5). A greater (P < 0.05) luteal tissue area was detected in hCG-treated ewes (n = 4) on Days 16 to 22 than in the animals in the control group (n = 7). Plasma P4 concentration on D13 to D22 was higher (P < 0.05) in hCG-treated animals than in control ewes. Administration of hCG seven days after estrus onset efficiently induced accessory CL formation in ewes, increasing luteal tissue area and plasma P4 concentration. . |
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Palavras-Chave: |
CL; Luteotropic effect; Ovulation induction; Taxa de concepção; Ultrasound. |
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Thesagro: |
Ciclo Estral; Corpo Lúteo; Ovino; Ovulação; Prenhez; Progesterona; Reprodução Animal; Ultrassom. |
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Thesaurus Nal: |
Animal reproduction; Brazil; Conception rate; Corpus luteum; Estrous cycle; Ewes; Pregnancy rate; Progesterone; Sheep. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/180003/1/CNPC-2018-Effects.pdf
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Marc: |
LEADER 02705naa a2200481 a 4500
001 2093405
005 2018-07-19
008 2018 bl uuuu u00u1 u #d
024 7 $aDOI: 10.21451/1984-3143-AR2017-957$2DOI
100 1 $aFONSECA, J. F. da
245 $aEffects of hCG administration on accessory corpus luteum formation and progesterone production in estrous-induced nulliparous Santa Inês ewes.$h[electronic resource]
260 $c2018
520 $aAbstract: The effect of hCG administration on accessory corpus luteum (ACL) formation, CL area, and plasma progesterone (P4) concentration (ng/mL) seven days after breeding was studied in nulliparous Santa Inês sheep. Intravaginal 60 mg MAP sponges were inserted into ewes for six days and 300 IU eCG i.m. and 30 ?g d-cloprostenol latero-vulvar were administered 24 h before sponge removal. Ewes were naturally bred and, seven days after first mating (Day 0; D0), were treated with either 250 IU hCG (hCG group; n = 7) or 1 mL saline solution (control group; n = 7). Blood was collected to determine plasma P4 concentrations and sonograms were performed on Days 7, 10, 13, 16, 19, and 22. Number of CL on D7 was similar (P > 0.05) between hCG (1.3 ± 0.5) and control (1.3 ± 0.5) groups; however, on D13, it was greater (P < 0.05) in the hCG group (2.3 ± 0.5) than in the control group (1.3 ± 0.5). A greater (P < 0.05) luteal tissue area was detected in hCG-treated ewes (n = 4) on Days 16 to 22 than in the animals in the control group (n = 7). Plasma P4 concentration on D13 to D22 was higher (P < 0.05) in hCG-treated animals than in control ewes. Administration of hCG seven days after estrus onset efficiently induced accessory CL formation in ewes, increasing luteal tissue area and plasma P4 concentration. .
650 $aAnimal reproduction
650 $aBrazil
650 $aConception rate
650 $aCorpus luteum
650 $aEstrous cycle
650 $aEwes
650 $aPregnancy rate
650 $aProgesterone
650 $aSheep
650 $aCiclo Estral
650 $aCorpo Lúteo
650 $aOvino
650 $aOvulação
650 $aPrenhez
650 $aProgesterona
650 $aReprodução Animal
650 $aUltrassom
653 $aCL
653 $aLuteotropic effect
653 $aOvulation induction
653 $aTaxa de concepção
653 $aUltrasound
700 1 $aCASTRO, A. C. R.
700 1 $aARASHIRO, E. K. N.
700 1 $aOLIVEIRA, M. E. F.
700 1 $aZAMBRINI, F. N.
700 1 $aESTEVES, L. V.
700 1 $aBRANDÃO, F. Z.
700 1 $aSOUZA-FABJAN, J. M. G.
773 $tAnimal Reproduction$gv. 15, n. 2, p. 135-139, Apr./Jun. 2018.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| 263. |  | MODESTO JUNIOR, M. de S.; ALVES, R. N. B. Rentabilidade de farinheiras no estado do Pará. In: MODESTO JUNIOR, M. de S.; ALVES, R. N. B. (Ed.). Cultura da mandioca: aspectos socioeconômicos, melhoramento genético, sistemas de cultivo, manejo de pragas e doenças e agroindústria. Brasília, DF: Embrapa, 2016. Cap. 11, p. 187-205.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 274. | | MODESTO JUNIOR, M. de S.; ALVES, R. N. B. Produção de mandioca em roça sem fogo e trio da produtividade. In: MODESTO JUNIOR, M. de S.; ALVES, R. N. B. (Ed.). Cultura da mandioca: aspectos socioeconômicos, melhoramento genético, sistemas de cultivo, manejo de pragas e doenças e agroindústria. Brasília, DF: Embrapa, 2016. Cap. 4, p. 79-95.| Tipo: Capítulo em Livro Técnico-Científico |
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