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| Registros recuperados : 61 | |
| 3. |  | FERES, L. F.; PALHAO, M. P.; SIQUEIRA, L. G. B.; VIANA, J. H. M. Pregnancy losses after transfer of bovine embryos produced by assisted reproductive technologies. Reproduction, Fertility and Development, v. 31, n. 1, p. 167, 2019. Edição dos resumos da Annual Conference of the International Embryo Technology Society, New Orleans, Louisiana, 2019.| Biblioteca(s): Embrapa Gado de Leite. |
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| 6. | | VIANA, J. H. M.; PALHÃO, M. P.; SIQUEIRA, L. G. B.; FONSECA, J. F. da; CAMARGO, L. S. de A. Ovarian follicular dynamics, follicle deviation, and oocyte yield in Gyr breed (Bos indicus) cows undergoing repeated ovum pick-up. Theriogenology, v. 73, n. 7, p. 966-972, 2010.| Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Gado de Leite. |
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| 7. | | FONSECA, J. F. da; BRUSCHI, J. H.; ZAMBRINI, F. N.; DEMCZUK, E.; VIANA, J. H. M.; PALHÃO, M. P. Induction of synchronized estrus in dairy goats with different gonadotrophins. Animal Reproduction, Belo Horizonte, v. 2, n. 1, p. 50-53, jan./mar., 2005.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 11. | | PALHÃO, M. P.; PAGANINI FILHO, W.; VIANA, J. H. M.; GUIMARÃES, R. B.; FIGUEIREDO, A. C. S.; LUDGERO, B. F. A.; FERNANDES, C. A. de C. Acurácia da ultrassonografia e da avaliação comportamental na determinação das características funcionais de estruturas ovarianas císticas. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 49, n. 10, p.823-827, 2014. Notas Científicas| Biblioteca(s): Embrapa Gado de Leite; Embrapa Unidades Centrais. |
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| 12. | | FERNANDES, C. A. DE C.; PALHÃO, M. P.; RIBEIRO, J. R.; VIANA, J. H. M.; GIOSO, M. M.; FIGUEIREDO, A. C. S.; OBA, E.; COSTA, D. S. Associação entre oxitetraciclina e cloprostenol no tratamento de vacas leiteiras com retenção de placenta. Revista Brasileira de Ciência Veterinária, v. 19, n. 3, p. 178-182, 2012.| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | RIZZONI, L. B.; GARCIA, J. A. D.; PALHÃO, M. P.; MIYAUCHI, T. A.; RIBEIRO, S. D. DE A.; VIANA, J. H. M.; FERNANDES, C. A. DE C. Cloprostenol sódico no processo de involução uterina de cabras - resultados parciais. Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, 25., 2011, Cumbuco. Resumos... p. 416| Biblioteca(s): Embrapa Gado de Leite. |
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| 14. | | CAMARGO, L. S. A.; ARASHIRO, E. K. N.; VIANA, J. H. M.; PALHÃO, M. P.; FONSECA, J. F. da; SÁ, W. F.; FERREIRA, A. M. Characteristics of calves produced by oocyte pick-up and in vitro fertilization. Arquivos de Ciências Veterinárias e Zoologia da UNIPAR, Umuarama, v. 7, p. 152, 2004. Suplemento 1. Edição da IX Jornada de Medicina Veterinária da UNIPAR e VI Mostra Científica em Medicina Veterinária, 2004.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 16. | | SIQUEIRA, L. G. B.; AREAS, V. S.; GHETTI, A. M.; FONSECA, J. F. da; PALHAO, M. P.; FERNANDES, C. A. C.; VIANA, J. H. M. Color Doppler flow imaging for the early detection of nonpregnant cattle at 20 days after timed artificial insemination. Journal of Dairy Science, v. 96, n. 10, p. 6461-6472, 2013.| Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Gado de Leite. |
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| 17. | | GUIMARÃES, C. R. B.; OLIVEIRA, M. E.; ROSSI, J. R.; FERNANDES, C. A. C.; VIANA, J. H. M.; PALHAO, M. P. Corpus luteum blood flow evaluation on Day 21 to improve the management of embryo recipient herds. Theriogenology, v. 84, n. 2, p. 237-241, 2015.| Biblioteca(s): Embrapa Gado de Leite. |
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| 18. | | FERNANDES, C. A. de C.; MIYAUCHI, T. M.; FIGUEIREDO, A. S. de; PALHÃO, M. P.; VARAGO, F. C.; NOGUEIRA, E. S. C.; NEVES, J. P.; MIYAUCHI, T. A. Hormonal protocols for in vitro production of zebu and taurine embryos. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 49, n. 10, p. 813-817, out. 2014. Título em português: Protocolos hormonais para produção in vitro de embriões de zebuínos e taurinos.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 20. | | FONSECA, J. F. da; BRUSCHI, J. H.; VIANA, J. H. M.; ZAMBRINI, F. N.; PALHÃO, M. P.; MAGALHÃES, A. C. M. Induction of synchronized estrus in Santa Ines sheep. Arquivos de Ciências Veterinárias e Zoologia da UNIPAR, Umuarama, v. 7, p. 148, 2004. Suplemento 1. Edição da IX Jornada de Medicina Veterinária da UNIPAR e VI Mostra Científica em Medicina Veterinária, 2004.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| Registros recuperados : 61 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
23/04/2024 |
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Data da última atualização: |
23/04/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
RIZZONI, L. B.; PALHÃO, M. P.; VIANA, J. H. M.; SOUZA, V. O.; NASCIMENTO NETO, J. da P.; NEVES, J. P. |
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Afiliação: |
LEANDRO BECALETE RIZZONI, UNIVERSIDADE PROFESSOR EDSON ANTÔNIO VELANO; MILLER PEREIRA PALHÃO, UNIVERSIDADE FEDERAL DE LAVRAS; JOAO HENRIQUE MOREIRA VIANA, CENARGEN; VINÍCIUS OLIVEIRA SOUZA, UNIVERSIDADE PROFESSOR EDSON ANTÔNIO VELANO; JOSÉ DA PASCOA NASCIMENTO NETO, UNIVERSIDADE FEDERAL DE LAVRAS; JAIRO PEREIRA NEVES, UNIVERSIDADE PROFESSOR EDSON ANTÔNIO VELANO. |
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Título: |
How early can nonpregnant ewes be detected based on the blood flow of the corpus luteum? |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 232, 107211, 2024. |
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DOI: |
https://doi.org/10.1016/j.smallrumres.2024.107211 |
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Idioma: |
Inglês |
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Conteúdo: |
The study aimed to characterize morpho-functional changes in corpus luteum (CL) in pregnant and non-pregnant sheep, propose diagnostic criteria for non-pregnancy, and assess diagnostic accuracy around the expected luteolysis period. Crossbred ewes (n = 34) underwent estrous synchronization, divided into G1 (unmated, n = 20) and G2 (mated, n = 14). The day of ovulation was considered as day 0 (D0). Luteal dynamic was monitored from D0 to D17, with blood samples collected every 72 h for progesterone (P4). Pregnancy was definitively diagnosed at day 30. Analyses included CL area (CLA), CL blood flow (CLBF), CLBF:CLA ratio, and serum P4. Statistical models considered group, day, and interactions. Accuracy for early pregnancy diagnosis (days 12–17) was assessed. CLBF:CLA ratio (14.3 ± 8.1 vs. 20.3 ± 10.7; 10.2 ± 10.4 vs. 17.8 ± 9.4; 1.3 ± 4.1 vs. 16.0 ± 8.2%), CLBF (0.41 ± 0.3 vs. 0.49 ± 0.3; 0.26 ± 0.3 vs. 0.45 ± 0.3; 0.06 ± 0.2 vs. 0.34 ± 0.2 cm2), and CLA (2.5 ± 1.1 vs. 2.3 ± 0.9; 1.9 ± 1.1 vs. 2.3 ± 1.1; 0.9 ± 1.2 vs. 2.0 ± 1.2 cm2) differed (P < 0.05) between pregnant and nonpregnant ewes at days 13, 14, and 16 after ovulation, respectively. The early diagnosis of nonpregnancy achieved accuracy values > 90% from day 15 on for CLBF and CLBF:CLA ratio, but not for CLA. At this day, CLBF and CLBF:CLA ratio were circa 50-fold greater in pregnant than in nonpregnant ewes (p < 0.0001). No ewe classified as in the 1st or 2nd quartiles for CL endpoints or P4 concentration was confirmed as pregnant at day 30. In summary, the diagnosis of nonpregnancy based on the objective evaluation of CLBF could be performed in sheep as early as at day 15 after ovulation. MenosThe study aimed to characterize morpho-functional changes in corpus luteum (CL) in pregnant and non-pregnant sheep, propose diagnostic criteria for non-pregnancy, and assess diagnostic accuracy around the expected luteolysis period. Crossbred ewes (n = 34) underwent estrous synchronization, divided into G1 (unmated, n = 20) and G2 (mated, n = 14). The day of ovulation was considered as day 0 (D0). Luteal dynamic was monitored from D0 to D17, with blood samples collected every 72 h for progesterone (P4). Pregnancy was definitively diagnosed at day 30. Analyses included CL area (CLA), CL blood flow (CLBF), CLBF:CLA ratio, and serum P4. Statistical models considered group, day, and interactions. Accuracy for early pregnancy diagnosis (days 12–17) was assessed. CLBF:CLA ratio (14.3 ± 8.1 vs. 20.3 ± 10.7; 10.2 ± 10.4 vs. 17.8 ± 9.4; 1.3 ± 4.1 vs. 16.0 ± 8.2%), CLBF (0.41 ± 0.3 vs. 0.49 ± 0.3; 0.26 ± 0.3 vs. 0.45 ± 0.3; 0.06 ± 0.2 vs. 0.34 ± 0.2 cm2), and CLA (2.5 ± 1.1 vs. 2.3 ± 0.9; 1.9 ± 1.1 vs. 2.3 ± 1.1; 0.9 ± 1.2 vs. 2.0 ± 1.2 cm2) differed (P < 0.05) between pregnant and nonpregnant ewes at days 13, 14, and 16 after ovulation, respectively. The early diagnosis of nonpregnancy achieved accuracy values > 90% from day 15 on for CLBF and CLBF:CLA ratio, but not for CLA. At this day, CLBF and CLBF:CLA ratio were circa 50-fold greater in pregnant than in nonpregnant ewes (p < 0.0001). No ewe classified as in the 1st or 2nd quartiles for CL endpoints or P4 concentration was confir... Mostrar Tudo |
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Palavras-Chave: |
Luteal blood flow. |
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Thesaurus NAL: |
Pregnancy; Sheep; Ultrasonography. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02432naa a2200241 a 4500
001 2163793
005 2024-04-23
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.smallrumres.2024.107211$2DOI
100 1 $aRIZZONI, L. B.
245 $aHow early can nonpregnant ewes be detected based on the blood flow of the corpus luteum?$h[electronic resource]
260 $c2024
520 $aThe study aimed to characterize morpho-functional changes in corpus luteum (CL) in pregnant and non-pregnant sheep, propose diagnostic criteria for non-pregnancy, and assess diagnostic accuracy around the expected luteolysis period. Crossbred ewes (n = 34) underwent estrous synchronization, divided into G1 (unmated, n = 20) and G2 (mated, n = 14). The day of ovulation was considered as day 0 (D0). Luteal dynamic was monitored from D0 to D17, with blood samples collected every 72 h for progesterone (P4). Pregnancy was definitively diagnosed at day 30. Analyses included CL area (CLA), CL blood flow (CLBF), CLBF:CLA ratio, and serum P4. Statistical models considered group, day, and interactions. Accuracy for early pregnancy diagnosis (days 12–17) was assessed. CLBF:CLA ratio (14.3 ± 8.1 vs. 20.3 ± 10.7; 10.2 ± 10.4 vs. 17.8 ± 9.4; 1.3 ± 4.1 vs. 16.0 ± 8.2%), CLBF (0.41 ± 0.3 vs. 0.49 ± 0.3; 0.26 ± 0.3 vs. 0.45 ± 0.3; 0.06 ± 0.2 vs. 0.34 ± 0.2 cm2), and CLA (2.5 ± 1.1 vs. 2.3 ± 0.9; 1.9 ± 1.1 vs. 2.3 ± 1.1; 0.9 ± 1.2 vs. 2.0 ± 1.2 cm2) differed (P < 0.05) between pregnant and nonpregnant ewes at days 13, 14, and 16 after ovulation, respectively. The early diagnosis of nonpregnancy achieved accuracy values > 90% from day 15 on for CLBF and CLBF:CLA ratio, but not for CLA. At this day, CLBF and CLBF:CLA ratio were circa 50-fold greater in pregnant than in nonpregnant ewes (p < 0.0001). No ewe classified as in the 1st or 2nd quartiles for CL endpoints or P4 concentration was confirmed as pregnant at day 30. In summary, the diagnosis of nonpregnancy based on the objective evaluation of CLBF could be performed in sheep as early as at day 15 after ovulation.
650 $aPregnancy
650 $aSheep
650 $aUltrasonography
653 $aLuteal blood flow
700 1 $aPALHÃO, M. P.
700 1 $aVIANA, J. H. M.
700 1 $aSOUZA, V. O.
700 1 $aNASCIMENTO NETO, J. da P.
700 1 $aNEVES, J. P.
773 $tSmall Ruminant Research$gv. 232, 107211, 2024.
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