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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
07/12/2016 |
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Data da última atualização: |
06/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WELLER, M. M. D. C. A.; FORTES, M. R. S.; MARCONDES, M. I.; ROTTA, P. P.; GIONBELI, T. R. S.; VALADARES FILHO, S. C.; CAMPOS, M. M.; SILVA, F. F.; SILVA, W.; MOORE, S.; GUIMARÃES, S. E. F. |
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Afiliação: |
M. M. D. C. A. Weller, University of Queensland, Brisbane; M. R. S. Fortes, University of Queensland, Brisbane; M. I. Marcondes, UFV; P. P. Rotta, UFV; T. R. S. Gionbeli, UFV; S. C. Valadares Filho, UFV; MARIANA MAGALHAES CAMPOS, CNPGL; F.F. Silva, UFV; W. Silva, UFV; S. Moore, University of Queensland, Brisbane; S. E. F. Guimarães, UFV. |
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Título: |
Effect of maternal nutrition and days of gestation on pituitary gland and gonadal gene expression in cattle. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Dairy Science, v. 99, n. 4, p. 3056-3071, 2016. |
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DOI: |
https://doi.org/10.3168/jds.2015-9673 |
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Idioma: |
Inglês |
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Conteúdo: |
This study investigated effects of maternal overnutrition on gonadal development and pituitary-gonadal gene expression in cattle fetuses at mid- and late-gestation. Twenty-seven multiparous dry cows were fed either high (ad libitum, H) or moderate (M) intake of the same diet. Twelve cows from H (n=6) and M (n=6) intake carrying females fetuses were euthanized at 199 and 268d of gestation (DG; n=3 for H or M on each DG). Fifteen cows from H (n=6) and M intake (n=9) carrying male fetuses were euthanized at 139, 199, and 241 DG (n=2 for H and n=3 for M on each DG). Fetal gonads and pituitary gland were sampled for gene expression and histological analyses. Sex-specific responses to maternal intake were observed. Primordial and total follicle numbers were lower in fetal ovaries from H than in M intake cows. These results were the reverse for preantral and antral follicles. Volumetric proportion and diameter of seminiferous cord were lower in fetal testis of H than M intake cows. The expression level of FSHB was greater in pituitary gland of the female fetus from H compared with M intake cows, irrespective of DG, whereas LHB gene expression did not differ. In males, FSHB and LHB gene expression levels were similar between maternal intake groups. Fetal ovarian expression of P450 aromatase, StAR, BMPR2, TGFBR1, GDF9, FSHR, Bax, and CASP3 genes were higher in H than in M intake cows, irrespective of DG. Fetal testicular expression of StAR, HSD17B3, IGF1, IGF2, and IGF1R genes was higher in M than in H intake cows. The differences in gene expression for steroidogenesis, folliculogenesis, and apoptosis may explain the distinct pattern of follicular growth between offspring of M and H intake cows. By contrast, the lower volumetric proportion, diameter, and length of seminiferous cord may relate to decreased gene expression in fetal testis from H intake cows. In conclusion, maternal H intake seems to affect fetal ovarian follicular growth and number of follicles, which may affect the size of ovarian reserve in their offspring. In male fetus, maternal H intake seems to disturb testicular development and may have implications on sperm production. The underlying mechanism of differential gene expression and the effect on offspring reproductive potential should be the focus of further research, especially considering larger sample size, reducing the chance for type I errors. MenosThis study investigated effects of maternal overnutrition on gonadal development and pituitary-gonadal gene expression in cattle fetuses at mid- and late-gestation. Twenty-seven multiparous dry cows were fed either high (ad libitum, H) or moderate (M) intake of the same diet. Twelve cows from H (n=6) and M (n=6) intake carrying females fetuses were euthanized at 199 and 268d of gestation (DG; n=3 for H or M on each DG). Fifteen cows from H (n=6) and M intake (n=9) carrying male fetuses were euthanized at 139, 199, and 241 DG (n=2 for H and n=3 for M on each DG). Fetal gonads and pituitary gland were sampled for gene expression and histological analyses. Sex-specific responses to maternal intake were observed. Primordial and total follicle numbers were lower in fetal ovaries from H than in M intake cows. These results were the reverse for preantral and antral follicles. Volumetric proportion and diameter of seminiferous cord were lower in fetal testis of H than M intake cows. The expression level of FSHB was greater in pituitary gland of the female fetus from H compared with M intake cows, irrespective of DG, whereas LHB gene expression did not differ. In males, FSHB and LHB gene expression levels were similar between maternal intake groups. Fetal ovarian expression of P450 aromatase, StAR, BMPR2, TGFBR1, GDF9, FSHR, Bax, and CASP3 genes were higher in H than in M intake cows, irrespective of DG. Fetal testicular expression of StAR, HSD17B3, IGF1, IGF2, and IGF1R genes was hi... Mostrar Tudo |
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Palavras-Chave: |
Bovine species; Bovines; Overnutrition; Real-time PCR. |
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Thesaurus Nal: |
Animal reproduction; fetal development; reproduction. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151424/1/Cnpgl-2016-JDairySci-Effect-of-maternal.pdf
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Marc: |
LEADER 03413naa a2200337 a 4500
001 2058195
005 2024-02-06
008 2016 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3168/jds.2015-9673$2DOI
100 1 $aWELLER, M. M. D. C. A.
245 $aEffect of maternal nutrition and days of gestation on pituitary gland and gonadal gene expression in cattle.$h[electronic resource]
260 $c2016
520 $aThis study investigated effects of maternal overnutrition on gonadal development and pituitary-gonadal gene expression in cattle fetuses at mid- and late-gestation. Twenty-seven multiparous dry cows were fed either high (ad libitum, H) or moderate (M) intake of the same diet. Twelve cows from H (n=6) and M (n=6) intake carrying females fetuses were euthanized at 199 and 268d of gestation (DG; n=3 for H or M on each DG). Fifteen cows from H (n=6) and M intake (n=9) carrying male fetuses were euthanized at 139, 199, and 241 DG (n=2 for H and n=3 for M on each DG). Fetal gonads and pituitary gland were sampled for gene expression and histological analyses. Sex-specific responses to maternal intake were observed. Primordial and total follicle numbers were lower in fetal ovaries from H than in M intake cows. These results were the reverse for preantral and antral follicles. Volumetric proportion and diameter of seminiferous cord were lower in fetal testis of H than M intake cows. The expression level of FSHB was greater in pituitary gland of the female fetus from H compared with M intake cows, irrespective of DG, whereas LHB gene expression did not differ. In males, FSHB and LHB gene expression levels were similar between maternal intake groups. Fetal ovarian expression of P450 aromatase, StAR, BMPR2, TGFBR1, GDF9, FSHR, Bax, and CASP3 genes were higher in H than in M intake cows, irrespective of DG. Fetal testicular expression of StAR, HSD17B3, IGF1, IGF2, and IGF1R genes was higher in M than in H intake cows. The differences in gene expression for steroidogenesis, folliculogenesis, and apoptosis may explain the distinct pattern of follicular growth between offspring of M and H intake cows. By contrast, the lower volumetric proportion, diameter, and length of seminiferous cord may relate to decreased gene expression in fetal testis from H intake cows. In conclusion, maternal H intake seems to affect fetal ovarian follicular growth and number of follicles, which may affect the size of ovarian reserve in their offspring. In male fetus, maternal H intake seems to disturb testicular development and may have implications on sperm production. The underlying mechanism of differential gene expression and the effect on offspring reproductive potential should be the focus of further research, especially considering larger sample size, reducing the chance for type I errors.
650 $aAnimal reproduction
650 $afetal development
650 $areproduction
653 $aBovine species
653 $aBovines
653 $aOvernutrition
653 $aReal-time PCR
700 1 $aFORTES, M. R. S.
700 1 $aMARCONDES, M. I.
700 1 $aROTTA, P. P.
700 1 $aGIONBELI, T. R. S.
700 1 $aVALADARES FILHO, S. C.
700 1 $aCAMPOS, M. M.
700 1 $aSILVA, F. F.
700 1 $aSILVA, W.
700 1 $aMOORE, S.
700 1 $aGUIMARÃES, S. E. F.
773 $tJournal of Dairy Science$gv. 99, n. 4, p. 3056-3071, 2016.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
27/04/2000 |
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Data da última atualização: |
25/02/2019 |
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Autoria: |
SUJII, E. R.; GARCIA, M. A.; FONTES, E. M. G. |
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Afiliação: |
EDISON RYOITI SUJII, Cenargen; MARIA ALICE GARCIA, Universidade Estadual de Campinas - UNICAMP/Departamento de Zoologia; ELIANA MARIA GOUVEIA FONTES, Cenargen. |
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Título: |
Movimentos de migração e dispersão de adultos da cigarrinha-das-pastagens. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 35, n. 3, p. 471-480, mar. 2000. |
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Idioma: |
Português |
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Notas: |
Título em inglês: Movements of migration and dispersion of adult spittlebugs. |
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Conteúdo: |
O efeito do movimento de adultos da cigarrinha-das-pastagens (Deois flavopicta Stal) em sua dinamica populacional foi avaliado em pastagens de Brachiaria ruziziensis na regiao do Distrito Federal, Brasil. Foram utilizados paineis de plastico com cola adesiva para monitorar as taxas de movimentacao. Os dados sugerem a ausencia de um padrao predominante de movimentacao em relacao a posicao geografica das armadilhas. A ocorrencia de vegetacao baixa, semelhante as pastagens em volta da area estudada, aparentemente favoreceu a dispersao, ao passo que a ocorrencia de cerrados ou matas na vizinhanca inibiu o movimento nesta direcao e aumentou a taxa de retorno da cigarrinha as pastagens. O inseto se deslocou principalmente mediante saltos ou voos curtos e baixos (abaixo de 1 m). Uma proporcao aproximada de 4:1 (macho:femea) foi capturada nas armadilhas indicando que os machos movimentam-se mais que as femeas. A velocidade media de movimentacao, de populacoes marcadas com po fluorescente atoxico e recapturadas apos periodos variaveis de liberacao, foi inferior a 5 m por dia. O movimento de dispersao de adultos nao contribui significativamente para a perda ou recrutamento de adultos em populacoes de D. flavopicta, a nao ser em casos de explosoes populacionais ou extinsao local. |
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Palavras-Chave: |
Cigarinha das pastagens. |
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Thesagro: |
Deois Flavopicta; Dinâmica Populacional; Homóptero. |
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Thesaurus NAL: |
population dynamics. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/16962/1/pab98_247.pdf
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Marc: |
LEADER 02008naa a2200217 a 4500
001 1101464
005 2019-02-25
008 2000 bl uuuu u00u1 u #d
100 1 $aSUJII, E. R.
245 $aMovimentos de migração e dispersão de adultos da cigarrinha-das-pastagens.
260 $c2000
500 $aTítulo em inglês: Movements of migration and dispersion of adult spittlebugs.
520 $aO efeito do movimento de adultos da cigarrinha-das-pastagens (Deois flavopicta Stal) em sua dinamica populacional foi avaliado em pastagens de Brachiaria ruziziensis na regiao do Distrito Federal, Brasil. Foram utilizados paineis de plastico com cola adesiva para monitorar as taxas de movimentacao. Os dados sugerem a ausencia de um padrao predominante de movimentacao em relacao a posicao geografica das armadilhas. A ocorrencia de vegetacao baixa, semelhante as pastagens em volta da area estudada, aparentemente favoreceu a dispersao, ao passo que a ocorrencia de cerrados ou matas na vizinhanca inibiu o movimento nesta direcao e aumentou a taxa de retorno da cigarrinha as pastagens. O inseto se deslocou principalmente mediante saltos ou voos curtos e baixos (abaixo de 1 m). Uma proporcao aproximada de 4:1 (macho:femea) foi capturada nas armadilhas indicando que os machos movimentam-se mais que as femeas. A velocidade media de movimentacao, de populacoes marcadas com po fluorescente atoxico e recapturadas apos periodos variaveis de liberacao, foi inferior a 5 m por dia. O movimento de dispersao de adultos nao contribui significativamente para a perda ou recrutamento de adultos em populacoes de D. flavopicta, a nao ser em casos de explosoes populacionais ou extinsao local.
650 $apopulation dynamics
650 $aDeois Flavopicta
650 $aDinâmica Populacional
650 $aHomóptero
653 $aCigarinha das pastagens
700 1 $aGARCIA, M. A.
700 1 $aFONTES, E. M. G.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 35, n. 3, p. 471-480, mar. 2000.
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Embrapa Unidades Centrais (AI-SEDE) |
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