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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados; Embrapa Florestas. |
Data corrente: |
18/09/2008 |
Data da última atualização: |
27/01/2009 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
VENDRAME, P. R. S.; MARCHÃO, R. L.; BRITO, O. R.; GUIMARÃES, M. de F.; BECQUER, T. |
Afiliação: |
Pedro R. S. Vendrame, UEL; Robélio Leandro Marchão, CPAC; Osmar R. Brito; Maria de F. Guimarães; Thierry Becquer. |
Título: |
Soil macrofauna under pastures in the brazilian cerrado region: the influence of mineralogy and chemical fertility. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. 1 CD-ROM. |
Idioma: |
Inglês |
Conteúdo: |
Various processes exercise influence on the soil macrofauna through intervention in the physical,
chemical or biological characteristics of the ecosystem. The aim of this study was to evaluate
the potential influence of different levels of chemical fertility associated to different contents of
kaolinite and gibbsite on the soil macrofauna under pastures in the Brazilian Cerrado region. In
this regard, a region to study was selected in the Federal District (near Brasília) and in the city of
Formosa, Goiás state. A chemical pre-analysis was carried out of the soils to determine the
exchangeable Ca and Mg as well as those of kaolinite and gibbsite through thermogravimetric
analysis (TGA) with the aim of calculating the ratio kaolinite / kaolinite+gibbsite (RKGb). These
two parameters (Ca + Mg and RKGb) allowed the choice of four groups of soils, which were:
Group I (Ca + Mg from 0.5 to 1.0 cmolc kg-1 and RKGb from 0.4 to 0.6); Group II (Ca + Mg from
0.5 to 1.0 cmolc kg-1 and RKGb from 0.8 to 1.0); Group III (Ca + Mg from 2.0 to 4.0 cmolc kg-1
and RKGb from 0.4 to 0.6) and Group IV (Ca + Mg from 2.0 to 4.0 cmolc kg-1 and RKGb from
0.8 to 1.0). Macrofauna was sampled following the TSBF method, collecting blocks of 25 × 25 ×
30 cm where, after manual collecting, all of the individuals were counted which afterwards were
identified as belonging to groups. The data were submitted to a principal component analysis
(PCA) with the aim of grouping the variables which came closest to explaining the behavior of
the macrofauna in the four soil groups selected. The groups identified in decreasing order of
total density are: Isoptera, Hymenoptera, Oligochaeta, Coleoptera, Diplopoda, Chilopoda,
Diptera, Hemiptera, Lepidoptera, Araneae, Homoptera, Symphyla, Scorpione e
Pseudoscorpione. The frequency of individuals in the litter is very low and represents less than
1% of the total; the greatest concentration of macrofauna in soils under pastures in the Cerrado
region occurs in the superficial layer 0-10 cm. The predominance of Isoptera is more accentuated
in the soils having low chemical fertility (low Ca + Mg) and there is a higher density of Oligochatea
(earthworms) in soils with high RKGb. MenosVarious processes exercise influence on the soil macrofauna through intervention in the physical,
chemical or biological characteristics of the ecosystem. The aim of this study was to evaluate
the potential influence of different levels of chemical fertility associated to different contents of
kaolinite and gibbsite on the soil macrofauna under pastures in the Brazilian Cerrado region. In
this regard, a region to study was selected in the Federal District (near Brasília) and in the city of
Formosa, Goiás state. A chemical pre-analysis was carried out of the soils to determine the
exchangeable Ca and Mg as well as those of kaolinite and gibbsite through thermogravimetric
analysis (TGA) with the aim of calculating the ratio kaolinite / kaolinite+gibbsite (RKGb). These
two parameters (Ca + Mg and RKGb) allowed the choice of four groups of soils, which were:
Group I (Ca + Mg from 0.5 to 1.0 cmolc kg-1 and RKGb from 0.4 to 0.6); Group II (Ca + Mg from
0.5 to 1.0 cmolc kg-1 and RKGb from 0.8 to 1.0); Group III (Ca + Mg from 2.0 to 4.0 cmolc kg-1
and RKGb from 0.4 to 0.6) and Group IV (Ca + Mg from 2.0 to 4.0 cmolc kg-1 and RKGb from
0.8 to 1.0). Macrofauna was sampled following the TSBF method, collecting blocks of 25 × 25 ×
30 cm where, after manual collecting, all of the individuals were counted which afterwards were
identified as belonging to groups. The data were submitted to a principal component analysis
(PCA) with the aim of grouping the variables which came closest to expl... Mostrar Tudo |
Thesagro: |
Cerrado; Fauna Edáfica; Solo. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02990naa a2200205 a 4500 001 1571476 005 2009-01-27 008 2008 bl uuuu u00u1 u #d 100 1 $aVENDRAME, P. R. S. 245 $aSoil macrofauna under pastures in the brazilian cerrado region$bthe influence of mineralogy and chemical fertility. 260 $c2008 520 $aVarious processes exercise influence on the soil macrofauna through intervention in the physical, chemical or biological characteristics of the ecosystem. The aim of this study was to evaluate the potential influence of different levels of chemical fertility associated to different contents of kaolinite and gibbsite on the soil macrofauna under pastures in the Brazilian Cerrado region. In this regard, a region to study was selected in the Federal District (near Brasília) and in the city of Formosa, Goiás state. A chemical pre-analysis was carried out of the soils to determine the exchangeable Ca and Mg as well as those of kaolinite and gibbsite through thermogravimetric analysis (TGA) with the aim of calculating the ratio kaolinite / kaolinite+gibbsite (RKGb). These two parameters (Ca + Mg and RKGb) allowed the choice of four groups of soils, which were: Group I (Ca + Mg from 0.5 to 1.0 cmolc kg-1 and RKGb from 0.4 to 0.6); Group II (Ca + Mg from 0.5 to 1.0 cmolc kg-1 and RKGb from 0.8 to 1.0); Group III (Ca + Mg from 2.0 to 4.0 cmolc kg-1 and RKGb from 0.4 to 0.6) and Group IV (Ca + Mg from 2.0 to 4.0 cmolc kg-1 and RKGb from 0.8 to 1.0). Macrofauna was sampled following the TSBF method, collecting blocks of 25 × 25 × 30 cm where, after manual collecting, all of the individuals were counted which afterwards were identified as belonging to groups. The data were submitted to a principal component analysis (PCA) with the aim of grouping the variables which came closest to explaining the behavior of the macrofauna in the four soil groups selected. The groups identified in decreasing order of total density are: Isoptera, Hymenoptera, Oligochaeta, Coleoptera, Diplopoda, Chilopoda, Diptera, Hemiptera, Lepidoptera, Araneae, Homoptera, Symphyla, Scorpione e Pseudoscorpione. The frequency of individuals in the litter is very low and represents less than 1% of the total; the greatest concentration of macrofauna in soils under pastures in the Cerrado region occurs in the superficial layer 0-10 cm. The predominance of Isoptera is more accentuated in the soils having low chemical fertility (low Ca + Mg) and there is a higher density of Oligochatea (earthworms) in soils with high RKGb. 650 $aCerrado 650 $aFauna Edáfica 650 $aSolo 700 1 $aMARCHÃO, R. L. 700 1 $aBRITO, O. R. 700 1 $aGUIMARÃES, M. de F. 700 1 $aBECQUER, T. 773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. 1 CD-ROM.
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Embrapa Cerrados (CPAC) |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
31/10/2018 |
Data da última atualização: |
03/01/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 5 |
Autoria: |
DINIZ, W. J. S.; ROSA, K. O.; COUTINHO, L. L.; TIZIOTO, P. C.; OLIVEIRA, P. S. N. de; SOUZA, M. M. de S.; CHAVES, A. S.; LANNA, D. P. D.; MOURÃO, G. B.; REGITANO, L. C. de A. |
Afiliação: |
Wellison J. S. Diniz, UFSCAR; Kamila O. Rosa, UNESP; Luiz L. Coutinho, USP/ESALQ; Polyana C. Tizioto, USP/ESALQ; Priscila Silva Neubern de Oliveira; Marcela M. de Souza; Amália S. Chaves, UFMG; Dante P. D. Lanna, USP/ESALQ; Gerson B. Mourão, ESALQ/USP; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE. |
Título: |
KCNJ11 gene expression is associated to feed consumption and growth traits in Nelore beef cattle. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Agri Gene, v. 9, p. 1-4, 2018. |
DOI: |
10.1016/j.aggene.2018.05.004 |
Idioma: |
Inglês |
Conteúdo: |
Feed efficiency is a complex trait influenced by several genes and biological processes. However, there is limited knowledge about the genes and pathways involved in this trait. KCNJ11, related to the insulin secretion pathway, was shown to be a functional candidate gene for beef quality traits in Nelore. Given its role in energy metabolism, we evaluated the effects of KCNJ11 gene expression level on feed efficiency-related, carcass and growth traits in Nelore steers. Skeletal muscle KCNJ11 mRNA levels were positively and significantly associated with dry matter intake (DMI), total digestible nutrients consumption (TDN), average daily gain (ADG), and relative growth rate (RGR) from a general linear mixed model approach. Co-expression analysis, using RNA sequencing data obtained from Longissimus dorsi (LD) muscle of 30 Nelore steers, identified key signalling pathways related to the regulation of energy metabolisms, such as mitogen-activated protein kinases and insulin pathways. Our findings indicate a linear relationship between KCNJ11 gene expression and the phenotypic measures for feed intake, weight gain, and relative growth rate in Nelore steers, but not for residual feed intake or fat deposition traits. |
Palavras-Chave: |
KCNJ11. |
Thesagro: |
Gado de Corte; Gado Nelore; Novilho de Corte. |
Thesaurus NAL: |
Beef cattle; Dry matter intake. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02124naa a2200313 a 4500 001 2098540 005 2019-01-03 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1016/j.aggene.2018.05.004$2DOI 100 1 $aDINIZ, W. J. S. 245 $aKCNJ11 gene expression is associated to feed consumption and growth traits in Nelore beef cattle.$h[electronic resource] 260 $c2018 520 $aFeed efficiency is a complex trait influenced by several genes and biological processes. However, there is limited knowledge about the genes and pathways involved in this trait. KCNJ11, related to the insulin secretion pathway, was shown to be a functional candidate gene for beef quality traits in Nelore. Given its role in energy metabolism, we evaluated the effects of KCNJ11 gene expression level on feed efficiency-related, carcass and growth traits in Nelore steers. Skeletal muscle KCNJ11 mRNA levels were positively and significantly associated with dry matter intake (DMI), total digestible nutrients consumption (TDN), average daily gain (ADG), and relative growth rate (RGR) from a general linear mixed model approach. Co-expression analysis, using RNA sequencing data obtained from Longissimus dorsi (LD) muscle of 30 Nelore steers, identified key signalling pathways related to the regulation of energy metabolisms, such as mitogen-activated protein kinases and insulin pathways. Our findings indicate a linear relationship between KCNJ11 gene expression and the phenotypic measures for feed intake, weight gain, and relative growth rate in Nelore steers, but not for residual feed intake or fat deposition traits. 650 $aBeef cattle 650 $aDry matter intake 650 $aGado de Corte 650 $aGado Nelore 650 $aNovilho de Corte 653 $aKCNJ11 700 1 $aROSA, K. O. 700 1 $aCOUTINHO, L. L. 700 1 $aTIZIOTO, P. C. 700 1 $aOLIVEIRA, P. S. N. de 700 1 $aSOUZA, M. M. de S. 700 1 $aCHAVES, A. S. 700 1 $aLANNA, D. P. D. 700 1 $aMOURÃO, G. B. 700 1 $aREGITANO, L. C. de A. 773 $tAgri Gene$gv. 9, p. 1-4, 2018.
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