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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 Gado de Corte. |
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Data corrente: |
09/12/2022 |
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Data da última atualização: |
12/12/2022 |
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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: |
CAMARGO, F. C.; DIFANTE, G. dos S.; MONTAGNER, D. B.; EUCLIDES, V. P. B.; TAIRA, C. de A. Q.; GURGEL, A. L. C.; SOUZA, D. L. de. |
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Afiliação: |
FRANCISCO CARLOS CAMARGO, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; GELSON DOS SANTOS DIFANTE, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; DENISE BAPTAGLIN MONTAGNER, CNPGC; VALERIA PACHECO BATISTA EUCLIDES, CNPGC; CAROLINA DE ARRUDA QUEIROZ TAIRA, UNIVERSIDAE FEDERAL DE MATO GROSSO DO SUL; ANTONIO LEANDRO CHAVES GURGEL, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; DANIELE LOPES DE SOUZA, UNIVERSIDADE CATÓLICA DOM BOSCO. |
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Título: |
Morphogenetic and structural traits of Ipyporã grass subjected to nitrogen fertilization rates under intermittent grazing. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Ciência Rural, v.52, n.5, e20201074, 2022. |
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DOI: |
http://doi.org/10.1590/0103-8478cr20201074 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT- This study examined the effects of annual nitrogen (N) rates of 100 and 200 kg ha-¹ on the morphogenetic and structural traits of Ipyporã grass (Brachiaria brizantha × Brachiaria ruziziensis) under intermittent grazing during the seasons of the year. The experiment was laid out in a randomized-block design with two treatments and three area replicates. Ipyporã grass pastures were grazed by beef cattle. Morphogenetic and structural traits of the forage canopy were evaluated using the marked-tiller technique. Forage accumulation and tiller density (TD) were also evaluated. Significant interaction effects (P < 0.05) between N rates and seasons were observed for the rest period, leaf lifespan (LLS), phyllochron, stem elongation rate (SER) and final leaf length (FLL). During winter, the rest period was shorter (40 vs. 50 days) in the pastures fertilized with 200 kg ha-¹ N. Conversely, in winter, the pastures fertilized with 100 kg ha-¹ N showed higher LLS, SER and phyllochron values, but lower FLL values. There was no isolated effect of N rates (P > 0.05) on forage accumulation rate; leaf appearance, elongation or senescence rates; leaf:stem ratio; or TD. However, the effect of seasons was significant for these variables, with the highest values occurring during spring and summer. The use of 200 kg ha-¹ N in Ipyporã grass pastures reduces the seasonality of forage production. |
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Thesagro: |
Adubação; Brachiaria Brizantha; Brachiaria Ruziziensis. |
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Thesaurus NAL: |
Forage production; Grasses; Nitrogen fertilizers; Tropical pastures. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1149432/1/Morphogenetic-structural-traits-2022.pdf
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Marc: |
LEADER 02328naa a2200289 a 4500
001 2149432
005 2022-12-12
008 2022 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1590/0103-8478cr20201074$2DOI
100 1 $aCAMARGO, F. C.
245 $aMorphogenetic and structural traits of Ipyporã grass subjected to nitrogen fertilization rates under intermittent grazing.$h[electronic resource]
260 $c2022
520 $aABSTRACT- This study examined the effects of annual nitrogen (N) rates of 100 and 200 kg ha-¹ on the morphogenetic and structural traits of Ipyporã grass (Brachiaria brizantha × Brachiaria ruziziensis) under intermittent grazing during the seasons of the year. The experiment was laid out in a randomized-block design with two treatments and three area replicates. Ipyporã grass pastures were grazed by beef cattle. Morphogenetic and structural traits of the forage canopy were evaluated using the marked-tiller technique. Forage accumulation and tiller density (TD) were also evaluated. Significant interaction effects (P < 0.05) between N rates and seasons were observed for the rest period, leaf lifespan (LLS), phyllochron, stem elongation rate (SER) and final leaf length (FLL). During winter, the rest period was shorter (40 vs. 50 days) in the pastures fertilized with 200 kg ha-¹ N. Conversely, in winter, the pastures fertilized with 100 kg ha-¹ N showed higher LLS, SER and phyllochron values, but lower FLL values. There was no isolated effect of N rates (P > 0.05) on forage accumulation rate; leaf appearance, elongation or senescence rates; leaf:stem ratio; or TD. However, the effect of seasons was significant for these variables, with the highest values occurring during spring and summer. The use of 200 kg ha-¹ N in Ipyporã grass pastures reduces the seasonality of forage production.
650 $aForage production
650 $aGrasses
650 $aNitrogen fertilizers
650 $aTropical pastures
650 $aAdubação
650 $aBrachiaria Brizantha
650 $aBrachiaria Ruziziensis
700 1 $aDIFANTE, G. dos S.
700 1 $aMONTAGNER, D. B.
700 1 $aEUCLIDES, V. P. B.
700 1 $aTAIRA, C. de A. Q.
700 1 $aGURGEL, A. L. C.
700 1 $aSOUZA, D. L. de
773 $tCiência Rural$gv.52, n.5, e20201074, 2022.
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Embrapa Gado de Corte (CNPGC) |
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