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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
24/10/2018 |
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Data da última atualização: |
24/10/2018 |
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Autoria: |
BORGES, A. A.; SANTOS, M. V. O.; QUEIROZ NETA, L. B.; OLIVEIR, A M. F.; SILVA, A. R.; PEREIRA, A. F. |
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Afiliação: |
Alana A. Borges, Laboratório de Biotecnologia Animal/Universidade Federal Rural do Semi-Árido - UFERSA; Maria V. O. Santos, Laboratório de Biotecnologia Animal/Universidade Federal Rural do Semi-Árido - UFERSA; Luiza B. Queiroz Neta, Laboratório de Biotecnologia Animal/Universidade Federal Rural do Semi-Árido - UFERSA; Moacir F. Oliveira, Laboratório de Morfofisiologia Animal Aplicada/Universidade Federal Rural do Semi-Árido - UFERSA; Alexandre R. Silva, Laboratório de Conservação de Germoplasma Animal/ Universidade Federal Rural do Semi-Árido - UFERSA; Alexsandra F. Pereira, Laboratório de Biotecnologia Animal/Universidade Federal Rural do Semi-Árido - UFERSA. |
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Título: |
In vitro maturation of collared peccary (Pecari tajacu) oocytes after different incubation times. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 9, p. 1863-1868, setembro 2018 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Maturação in vitro de oócitos de cateto (Pecari tajacu) após diferentes períodos de incubação. |
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Conteúdo: |
Oocyte in vitro maturation (IVM) is the first step of the in vitro reproductive technologies that enables mature oocytes to be generated ex vivo and after used for embryo production. In this sense, the establishment of culture environment, as oocyte incubation time, is essential for the success of the IVM. Therefore, the study was carried out to investigate the relationship between the meiotic potential and the IVM times of collared peccary oocytes, wild mammals of great commercial and ecological interest. Thus, ovaries were collected of females derived from captivity and transported to the laboratory within 1 hour of slaughtering. The oocytes derived from follicles (3-6mm in diameter) were recovered by aspirated and sliced. Good quality oocytes (evenly granulated cytoplasm with a least one layer of surrounding cumulus cells) were selected and subjected to culture in TCM 199 supplemented with 10?g/mL FSH, 10% FBS and 100?M cysteamine at 38.5°C, 5% CO2 and maximum humidity for 24 or 48 hours. After the incubation period, the nuclear status, the presence of first polar body and the expansion of cumulus cells of oocytes were assessed. The data obtained were analyzed by Fisher exact test (P<0.05). A total of four sessions (2-3 females per session) were performed, resulting in eighteen aspirated and sliced ovaries with normal morphological characteristics. An oocyte recovery rate of about 83.1% (59/71) was obtained with 3.3 oocytes/ovary and 2.3 viable oocytes/ovary. After different incubation times, differences (P<0.05) were observed in 24 and 48 hours for expansion of the cumulus cells (38.1% vs. 100%), presence of first polar body (52.4% vs. 90.5%) and nuclear status in second metaphase (19.0% vs. 76.2%), respectively. In conclusion, 48 hours is suitable time for the in vitro maturation of oocytes derived from collared peccaries when compared to the time of 24 hours, according to the meiotic potential observed. Additional studies should be conducted to improve the quality of the oocyte culture environment, as medium composition, aiming to obtain viable mature oocytes for other in vitro biotechnologies. MenosOocyte in vitro maturation (IVM) is the first step of the in vitro reproductive technologies that enables mature oocytes to be generated ex vivo and after used for embryo production. In this sense, the establishment of culture environment, as oocyte incubation time, is essential for the success of the IVM. Therefore, the study was carried out to investigate the relationship between the meiotic potential and the IVM times of collared peccary oocytes, wild mammals of great commercial and ecological interest. Thus, ovaries were collected of females derived from captivity and transported to the laboratory within 1 hour of slaughtering. The oocytes derived from follicles (3-6mm in diameter) were recovered by aspirated and sliced. Good quality oocytes (evenly granulated cytoplasm with a least one layer of surrounding cumulus cells) were selected and subjected to culture in TCM 199 supplemented with 10?g/mL FSH, 10% FBS and 100?M cysteamine at 38.5°C, 5% CO2 and maximum humidity for 24 or 48 hours. After the incubation period, the nuclear status, the presence of first polar body and the expansion of cumulus cells of oocytes were assessed. The data obtained were analyzed by Fisher exact test (P<0.05). A total of four sessions (2-3 females per session) were performed, resulting in eighteen aspirated and sliced ovaries with normal morphological characteristics. An oocyte recovery rate of about 83.1% (59/71) was obtained with 3.3 oocytes/ovary and 2.3 viable oocytes/ovary. After differ... Mostrar Tudo |
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Palavras-Chave: |
Cateto; Collared peccary; Competência meiótica; Incubation; Maturação nuclear; Meiotic competence; Nuclear maturation; Oócito; Pecari tajacu; Wild mammals. |
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Thesagro: |
Incubação; Maturação; Reprodução. |
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Thesaurus Nal: |
Oocytes; Reproduction. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/185059/1/In-vitro-maturation-of-collared-peccary.pdf
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Marc: |
LEADER 03328naa a2200373 a 4500
001 2098144
005 2018-10-24
008 2018 bl uuuu u00u1 u #d
100 1 $aBORGES, A. A.
245 $aIn vitro maturation of collared peccary (Pecari tajacu) oocytes after different incubation times.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Maturação in vitro de oócitos de cateto (Pecari tajacu) após diferentes períodos de incubação.
520 $aOocyte in vitro maturation (IVM) is the first step of the in vitro reproductive technologies that enables mature oocytes to be generated ex vivo and after used for embryo production. In this sense, the establishment of culture environment, as oocyte incubation time, is essential for the success of the IVM. Therefore, the study was carried out to investigate the relationship between the meiotic potential and the IVM times of collared peccary oocytes, wild mammals of great commercial and ecological interest. Thus, ovaries were collected of females derived from captivity and transported to the laboratory within 1 hour of slaughtering. The oocytes derived from follicles (3-6mm in diameter) were recovered by aspirated and sliced. Good quality oocytes (evenly granulated cytoplasm with a least one layer of surrounding cumulus cells) were selected and subjected to culture in TCM 199 supplemented with 10?g/mL FSH, 10% FBS and 100?M cysteamine at 38.5°C, 5% CO2 and maximum humidity for 24 or 48 hours. After the incubation period, the nuclear status, the presence of first polar body and the expansion of cumulus cells of oocytes were assessed. The data obtained were analyzed by Fisher exact test (P<0.05). A total of four sessions (2-3 females per session) were performed, resulting in eighteen aspirated and sliced ovaries with normal morphological characteristics. An oocyte recovery rate of about 83.1% (59/71) was obtained with 3.3 oocytes/ovary and 2.3 viable oocytes/ovary. After different incubation times, differences (P<0.05) were observed in 24 and 48 hours for expansion of the cumulus cells (38.1% vs. 100%), presence of first polar body (52.4% vs. 90.5%) and nuclear status in second metaphase (19.0% vs. 76.2%), respectively. In conclusion, 48 hours is suitable time for the in vitro maturation of oocytes derived from collared peccaries when compared to the time of 24 hours, according to the meiotic potential observed. Additional studies should be conducted to improve the quality of the oocyte culture environment, as medium composition, aiming to obtain viable mature oocytes for other in vitro biotechnologies.
650 $aOocytes
650 $aReproduction
650 $aIncubação
650 $aMaturação
650 $aReprodução
653 $aCateto
653 $aCollared peccary
653 $aCompetência meiótica
653 $aIncubation
653 $aMaturação nuclear
653 $aMeiotic competence
653 $aNuclear maturation
653 $aOócito
653 $aPecari tajacu
653 $aWild mammals
700 1 $aSANTOS, M. V. O.
700 1 $aQUEIROZ NETA, L. B.
700 1 $aOLIVEIR, A M. F.
700 1 $aSILVA, A. R.
700 1 $aPEREIRA, A. F.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 38, n. 9, p. 1863-1868, setembro 2018
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Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
18/09/2006 |
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Data da última atualização: |
28/05/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CASTANHEIRA, A. L. M.; SOUZA, I. R. P. de; OLIVEIRA, E. de; OLIVEIRA, C. M.; PAIVA, E.; MAGALHAES, P. C. |
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Afiliação: |
ISABEL REGINA PRAZERES DE SOUZA, CNPMS; ELIZABETH DE OLIVEIRA SABATO, CNPMS; PAULO CESAR MAGALHAES, CNPMS. |
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Título: |
Efeito da inoculação de plantas de milho com isolados geográficos de S. Kunkelli no teor de macronutrientes. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE MILHO E SORGO, 26.; SIMPÓSIO BRASILEIRO SOBRE A LAGARTA-DO-CARTUCHO, SPODOPTERA FRUGIPERDA, 2.; SIMPÓSIO SOBRE COLLETOTRICHUM GRAMINICOLA, 1., 2006, Belo Horizonte. Inovação para sistemas integrados de produção: trabalhos apresentados. [Sete Lagoas]: ABMS, 2006. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Enfezamento pálido; Espiroplasma; Macronutrientes. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/52197/1/Efeito-inoculacao.pdf
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Marc: |
LEADER 00902nam a2200205 a 4500
001 1490137
005 2018-05-28
008 2006 bl uuuu u00u1 u #d
100 1 $aCASTANHEIRA, A. L. M.
245 $aEfeito da inoculação de plantas de milho com isolados geográficos de S. Kunkelli no teor de macronutrientes.$h[electronic resource]
260 $aIn: CONGRESSO NACIONAL DE MILHO E SORGO, 26.; SIMPÓSIO BRASILEIRO SOBRE A LAGARTA-DO-CARTUCHO, SPODOPTERA FRUGIPERDA, 2.; SIMPÓSIO SOBRE COLLETOTRICHUM GRAMINICOLA, 1., 2006, Belo Horizonte. Inovação para sistemas integrados de produção: trabalhos apresentados. [Sete Lagoas]: ABMS$c2006
300 $c1 CD-ROM.
653 $aEnfezamento pálido
653 $aEspiroplasma
653 $aMacronutrientes
700 1 $aSOUZA, I. R. P. de
700 1 $aOLIVEIRA, E. de
700 1 $aOLIVEIRA, C. M.
700 1 $aPAIVA, E.
700 1 $aMAGALHAES, P. C.
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