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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: |
19/06/2023 |
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Data da última atualização: |
10/04/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, M. E. F.; CALDAS, T. D. B.; RODRIGUES, J. N. D.; VERGANI, G. B.; RANGEL, P. S. C.; ESTEVES, L. V.; SOUZA-FABJAN, J. M. G.; FONSECA, J. F. da. |
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Afiliação: |
MARIA EMILIA FRANCO OLIVEIRA, UNIVERSIDADE ESTADUAL PAULISTA; TARCILLA DUTRA BARBOSA CALDAS, UNIVERSIDADE FEDERAL DE VIÇOSA; JULIANA NASCIMENTO DUARTE RODRIGUES, UNIVERSIDADE FEDERAL DE VIÇOSA; GABRIEL BRUN VERGANI, UNIVERSIDADE ESTADUAL PAULISTA; PAULO SERGIO CERQUEIRA RANGEL, UNIVERSIDADE FEDERAL FLUMINENSE; LUCIANA VIEIRA ESTEVES; JOANNA MARIA GONÇALVES SOUZA-FABJAN, UNIVERSIDADE FEDERAL FLUMINENSE; JEFERSON FERREIRA DA FONSECA, CNPC. |
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Título: |
Intravaginal progesterone device reinsertion during the early luteal phase affects luteal function and embryo yield in superovulated ewes. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Animal Reproduction Science, v. 254, 107273, Jul. 2023. |
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DOI: |
https://doi.org/10.1016/j.anireprosci.2023.107273 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This study checked the efficacy of progesterone (P4) device reinsertion during the early luteal phase on luteal function and embryo yield in superovulated crossbred ewes. Twenty multiparous ewes received an intravaginal P4 device for nine days (D0 to D9) followed by six decreasing doses (25, 25, 15, 15, 10, 10%) of 133 mg pFSH i.m. at 12 h intervals, starting 60 h before P4 device removal. Ewes were naturally mated at 12 h intervals while in estrus. On D13, ewes with viable corpora lutea (CL; n = 19) were equally allocated for receiving their P4 device reinsertion (G-P4; n = 10) or not (G-Control; n = 9). On D17, the P4 device was removed, and all females received the cervical relaxation protocol 16 h to 20 min before non-surgical embryo recovery. CL count and their functionality classification were performed on D13 and D17 by transrectal B-mode and color Doppler ultrasonography (US). Plasma P4 concentrations (ng/mL) of G-P4 ewes increased (P < 0.05) over the days, being greater on D17 (9.2 ± 2.8) than on D9 (1.9 ± 0.7) and D13 (1.6 ± 0.4). The overall CL count per ewe tended to be greater (P = 0.09) in G-P4 compared with G-Control. The occurrence of premature regression of corpora lutea did not differ (P > 0.05) between G-P4 (30.0%) and G-Control (44.4%). The number of ova/embryos recovered was greater (P < 0.05) in G-P4 (11.6 ± 2.9) compared with G-Control (3.7 ± 2.0), respectively. Altogether, the reinsertion of the P4 device for four days after superovulation in ewes promotes greater P4 concentrations, resulting in greater ova/embryos recovered. MenosAbstract: This study checked the efficacy of progesterone (P4) device reinsertion during the early luteal phase on luteal function and embryo yield in superovulated crossbred ewes. Twenty multiparous ewes received an intravaginal P4 device for nine days (D0 to D9) followed by six decreasing doses (25, 25, 15, 15, 10, 10%) of 133 mg pFSH i.m. at 12 h intervals, starting 60 h before P4 device removal. Ewes were naturally mated at 12 h intervals while in estrus. On D13, ewes with viable corpora lutea (CL; n = 19) were equally allocated for receiving their P4 device reinsertion (G-P4; n = 10) or not (G-Control; n = 9). On D17, the P4 device was removed, and all females received the cervical relaxation protocol 16 h to 20 min before non-surgical embryo recovery. CL count and their functionality classification were performed on D13 and D17 by transrectal B-mode and color Doppler ultrasonography (US). Plasma P4 concentrations (ng/mL) of G-P4 ewes increased (P < 0.05) over the days, being greater on D17 (9.2 ± 2.8) than on D9 (1.9 ± 0.7) and D13 (1.6 ± 0.4). The overall CL count per ewe tended to be greater (P = 0.09) in G-P4 compared with G-Control. The occurrence of premature regression of corpora lutea did not differ (P > 0.05) between G-P4 (30.0%) and G-Control (44.4%). The number of ova/embryos recovered was greater (P < 0.05) in G-P4 (11.6 ± 2.9) compared with G-Control (3.7 ± 2.0), respectively. Altogether, the reinsertion of the P4 device for four days after superovulation i... Mostrar Tudo |
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Palavras-Chave: |
Early luteal regression; NSER; Superovulated females. |
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Thesaurus Nal: |
Crossbreds; Embryo transfer; Estrus; Luteolysis; Progesterone; Reproduction; Sheep; Superovulation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02668naa a2200349 a 4500
001 2154499
005 2024-04-10
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.anireprosci.2023.107273$2DOI
100 1 $aOLIVEIRA, M. E. F.
245 $aIntravaginal progesterone device reinsertion during the early luteal phase affects luteal function and embryo yield in superovulated ewes.$h[electronic resource]
260 $c2023
520 $aAbstract: This study checked the efficacy of progesterone (P4) device reinsertion during the early luteal phase on luteal function and embryo yield in superovulated crossbred ewes. Twenty multiparous ewes received an intravaginal P4 device for nine days (D0 to D9) followed by six decreasing doses (25, 25, 15, 15, 10, 10%) of 133 mg pFSH i.m. at 12 h intervals, starting 60 h before P4 device removal. Ewes were naturally mated at 12 h intervals while in estrus. On D13, ewes with viable corpora lutea (CL; n = 19) were equally allocated for receiving their P4 device reinsertion (G-P4; n = 10) or not (G-Control; n = 9). On D17, the P4 device was removed, and all females received the cervical relaxation protocol 16 h to 20 min before non-surgical embryo recovery. CL count and their functionality classification were performed on D13 and D17 by transrectal B-mode and color Doppler ultrasonography (US). Plasma P4 concentrations (ng/mL) of G-P4 ewes increased (P < 0.05) over the days, being greater on D17 (9.2 ± 2.8) than on D9 (1.9 ± 0.7) and D13 (1.6 ± 0.4). The overall CL count per ewe tended to be greater (P = 0.09) in G-P4 compared with G-Control. The occurrence of premature regression of corpora lutea did not differ (P > 0.05) between G-P4 (30.0%) and G-Control (44.4%). The number of ova/embryos recovered was greater (P < 0.05) in G-P4 (11.6 ± 2.9) compared with G-Control (3.7 ± 2.0), respectively. Altogether, the reinsertion of the P4 device for four days after superovulation in ewes promotes greater P4 concentrations, resulting in greater ova/embryos recovered.
650 $aCrossbreds
650 $aEmbryo transfer
650 $aEstrus
650 $aLuteolysis
650 $aProgesterone
650 $aReproduction
650 $aSheep
650 $aSuperovulation
653 $aEarly luteal regression
653 $aNSER
653 $aSuperovulated females
700 1 $aCALDAS, T. D. B.
700 1 $aRODRIGUES, J. N. D.
700 1 $aVERGANI, G. B.
700 1 $aRANGEL, P. S. C.
700 1 $aESTEVES, L. V.
700 1 $aSOUZA-FABJAN, J. M. G.
700 1 $aFONSECA, J. F. da
773 $tAnimal Reproduction Science$gv. 254, 107273, Jul. 2023.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
20/05/1993 |
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Data da última atualização: |
26/02/2014 |
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Autoria: |
CRUZ, E. R. da. |
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Afiliação: |
EMBRAPA-DDM. |
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Título: |
Analise econômica de projetos de pesquisa: avaliação privada ou avaliação social? |
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Ano de publicação: |
1975 |
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Fonte/Imprenta: |
Brasília, DF: EMBRAPA-DRM, 1975. |
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Páginas: |
22 p. |
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Idioma: |
Português |
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Conteúdo: |
Seminario sobre analise economica de projetos de pesquisa; "Discussion paper n.1 - avaliacao privada ou avaliacao social?; Pontos a serem debatidos; Subemprego e custo social da mao de obra nao qualificada; Desequilibrio do balanco de pagamentos e custo das divisas; Escassez de fundos de inversao e custo do capital; Um exemplo hipotetico de investimento na cultura de soja; Apendice tecnico I: Um novo criterio para avaliacao de investimentos ligados ao comercio exterior. |
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Palavras-Chave: |
Avaliação; Econômica; Economy; project; Projeto. |
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Thesagro: |
Agricultura; Análise; Análise Econômica; Economia; Pesquisa; Projeto de Pesquisa. |
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Thesaurus NAL: |
agriculture; economic analysis; research; research projects. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/98311/1/Analise-economica-de-projetos.pdf
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Marc: |
LEADER 01241nam a2200301 a 4500
001 1085711
005 2014-02-26
008 1975 bl uuuu u0uu1 u #d
100 1 $aCRUZ, E. R. da
245 $aAnalise econômica de projetos de pesquisa$bavaliação privada ou avaliação social?
260 $aBrasília, DF: EMBRAPA-DRM$c1975
300 $a22 p.
520 $aSeminario sobre analise economica de projetos de pesquisa; "Discussion paper n.1 - avaliacao privada ou avaliacao social?; Pontos a serem debatidos; Subemprego e custo social da mao de obra nao qualificada; Desequilibrio do balanco de pagamentos e custo das divisas; Escassez de fundos de inversao e custo do capital; Um exemplo hipotetico de investimento na cultura de soja; Apendice tecnico I: Um novo criterio para avaliacao de investimentos ligados ao comercio exterior.
650 $aagriculture
650 $aeconomic analysis
650 $aresearch
650 $aresearch projects
650 $aAgricultura
650 $aAnálise
650 $aAnálise Econômica
650 $aEconomia
650 $aPesquisa
650 $aProjeto de Pesquisa
653 $aAvaliação
653 $aEconômica
653 $aEconomy
653 $aproject
653 $aProjeto
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Embrapa Unidades Centrais (AI-SEDE) |
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