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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
19/02/2014 |
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Data da última atualização: |
17/05/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MARTINS, D. C.; BOMFIM, M. A. D.; FACO, O.; OLIVEIRA, L. S.; SANTOS, S. F. dos; MARTINS, F. E. B. |
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Afiliação: |
Dailiene Costa Martins, Graduação - Universidade Estadual do Maranhão; MARCO AURELIO DELMONDES BOMFIM, CNPC; OLIVARDO FACO, CNPC; LEANDRO SILVA OLIVEIRA, CNPC; Sueli Freitas dos Santos, Pós-graduação - Embrapa; Francisca Erlane Brito Martins, Graduação - Universidade Estadual Vale do Acaraú (UVA) - Sobral, CE, Brasil. |
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Título: |
Predição da massa corporal em pequenos ruminantes por meio de medidas morfométricas. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA CAPRINOS E OVINOS, 2., 2013, Sobral. Resumos... Sobral: Embrapa Caprinos e Ovinos, 2013. p. 30-31. (Embrapa Caprinos e Ovinos. Documentos, 109). |
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Idioma: |
Português |
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Conteúdo: |
A determinação da massa corporal é importante para o melhoramento genético e para os manejos nutricional, reprodutivo e sanitário. Todavia, a inexistência de balanças em grande parte das propriedades rurais dificulta a coleta dessa informação. Assim, esse estudo teve como objetivo determinar a relação entre medidas morfométricas e a massa corporal para servir de base para o desenvolvimento de uma ferramenta de estimativa da massa baseada em mensurações corporais. |
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Palavras-Chave: |
Massa corporal; Medidas morfométricas. |
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Thesagro: |
Caprino; Ovino. |
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Thesaurus Nal: |
Body weight; Goats; Measurement; Sheep. |
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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/97737/1/rac-Predicao-da-massa.pdf
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Marc: |
LEADER 01363nam a2200265 a 4500
001 1980491
005 2022-05-17
008 2013 bl uuuu u00u1 u #d
100 1 $aMARTINS, D. C.
245 $aPredição da massa corporal em pequenos ruminantes por meio de medidas morfométricas.$h[electronic resource]
260 $aIn: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA CAPRINOS E OVINOS, 2., 2013, Sobral. Resumos... Sobral: Embrapa Caprinos e Ovinos, 2013. p. 30-31. (Embrapa Caprinos e Ovinos. Documentos$c2013
520 $aA determinação da massa corporal é importante para o melhoramento genético e para os manejos nutricional, reprodutivo e sanitário. Todavia, a inexistência de balanças em grande parte das propriedades rurais dificulta a coleta dessa informação. Assim, esse estudo teve como objetivo determinar a relação entre medidas morfométricas e a massa corporal para servir de base para o desenvolvimento de uma ferramenta de estimativa da massa baseada em mensurações corporais.
650 $aBody weight
650 $aGoats
650 $aMeasurement
650 $aSheep
650 $aCaprino
650 $aOvino
653 $aMassa corporal
653 $aMedidas morfométricas
700 1 $aBOMFIM, M. A. D.
700 1 $aFACO, O.
700 1 $aOLIVEIRA, L. S.
700 1 $aSANTOS, S. F. dos
700 1 $aMARTINS, F. E. B.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
26/10/2018 |
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Data da última atualização: |
14/12/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
BARBOSA, G. M. N.; ASSIS, I. R. de; KER, J. C.; MARQUES, E. A. G.; CUNHA, T. J. F.; SOUZA, L. da S.; VARGAS SOBRINHO, V. |
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Afiliação: |
GUSTAVO MAGALHÃES NUNES BARBOSA, Universidade Federal de Viçosa; IGOR RODRIGUES DE ASSIS, Universidade Federal de Viçosa; JOÃO CARLOS KER, Universidade Federal de Viçosa; EDUARDO ANTÔNIO GOMES MARQUES, Universidade Federal de Viçosa; TONY JARBAS FERREIRA CUNHA, CPATSA; LUCIANO DA SILVA SOUZA, Universidade Federal do Recôncavo Baiano; ULLISSES VARGAS SOBRINHO, Universidade Federal de Viçosa. |
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Título: |
Geotechnical characterization of Vertisols from Bahia State, Brazil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: proceedings. Rio de Janeiro: SBCS, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Despite the existence of vertic soils with predominance of kaolinite is reported around the world, there are few studies shown the influence of this clay mineral in their geotechnical characteristics. The work aimed to perform a geotechnical characterization of Vertisols from Bahia, Brazil, besides understanding the influence of physical, chemical and mineralogical properties on the geotechnical behavior. Three Vertisols were collected in Juazeiro city, in a semi-arid region, one kaolinitic Vertisol and two smectite Vertisols. Other three Vertsols were collected in Recôncavo region, all presented clay mineralogy with codominance of smectite and kaolinite (Sm-K). A geotechnical characterization was carried out in their diagnostic horizons, determining properties such as granulometric curve, clay activity, linear expansion coefficient, compaction capacity, cohesion (c?), and internal friction angle (ϕ) of saturated soils. We observed that the clay content was the attribute that most influenced the geotechnical characteristics. All soils showed expansion potential above 0.01, considered as very high. The kaolinitic Vertisol showed the lowest clay activity. However, the clay content of 68% contributed to this soil to present an expansion potential similar to the smectite Vertisol with clay content of 35%. The major values of soil compaction were observed for the kaolinitic Vertisol, which presented greater reduction of void ratio and higher density as a function of moisture increase. For this soil, the optimal moisture content (OMC) and maximum dry density (MDD) were 22% and 1.65 g cm-3, respectively. The other soils presented OMC between 18-41% and MDD between 1.75-1.24 g cm-3. These smectite-soils, MDD decreased with increasing of OMC. All soils had low c? values, which is expected for high clay content soils. The c? values increased with increasing of kaolinite and decreased with increasing of clay content. The kaolinite Vertisol showed c? of 0.19 kgf cm-2. The c? values to Sm-K Vertisols ranged between 0.05-0.11 kgf cm-2. As for smectite-soil, c? values ranged between 0.02-0.03 kgf cm-2. Low ϕ values were observed for all soils, which indicates low shear resistance. In its turn, ϕ was more influenced by granulometry, in which higher levels of sand and gravel provided higher ϕ, independently of the type of clay. Vertisols with different mineralogy present different geotechnical characteristics. Keywords: Smectite; kaolinite; expansive soils MenosDespite the existence of vertic soils with predominance of kaolinite is reported around the world, there are few studies shown the influence of this clay mineral in their geotechnical characteristics. The work aimed to perform a geotechnical characterization of Vertisols from Bahia, Brazil, besides understanding the influence of physical, chemical and mineralogical properties on the geotechnical behavior. Three Vertisols were collected in Juazeiro city, in a semi-arid region, one kaolinitic Vertisol and two smectite Vertisols. Other three Vertsols were collected in Recôncavo region, all presented clay mineralogy with codominance of smectite and kaolinite (Sm-K). A geotechnical characterization was carried out in their diagnostic horizons, determining properties such as granulometric curve, clay activity, linear expansion coefficient, compaction capacity, cohesion (c?), and internal friction angle (ϕ) of saturated soils. We observed that the clay content was the attribute that most influenced the geotechnical characteristics. All soils showed expansion potential above 0.01, considered as very high. The kaolinitic Vertisol showed the lowest clay activity. However, the clay content of 68% contributed to this soil to present an expansion potential similar to the smectite Vertisol with clay content of 35%. The major values of soil compaction were observed for the kaolinitic Vertisol, which presented greater reduction of void ratio and higher density as a function of moisture... Mostrar Tudo |
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Palavras-Chave: |
Bahia; Caracterização geotécnica; Caulinite; Solos expansivos. |
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Thesagro: |
Solo; Vertissolo. |
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Thesaurus NAL: |
Smectite; Soil. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/185188/1/Tony.pdf
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Marc: |
LEADER 03353nam a2200277 a 4500
001 2098279
005 2023-12-14
008 2018 bl uuuu u00u1 u #d
100 1 $aBARBOSA, G. M. N.
245 $aGeotechnical characterization of Vertisols from Bahia State, Brazil.$h[electronic resource]
260 $aIn: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: proceedings. Rio de Janeiro: SBCS$c2018
520 $aDespite the existence of vertic soils with predominance of kaolinite is reported around the world, there are few studies shown the influence of this clay mineral in their geotechnical characteristics. The work aimed to perform a geotechnical characterization of Vertisols from Bahia, Brazil, besides understanding the influence of physical, chemical and mineralogical properties on the geotechnical behavior. Three Vertisols were collected in Juazeiro city, in a semi-arid region, one kaolinitic Vertisol and two smectite Vertisols. Other three Vertsols were collected in Recôncavo region, all presented clay mineralogy with codominance of smectite and kaolinite (Sm-K). A geotechnical characterization was carried out in their diagnostic horizons, determining properties such as granulometric curve, clay activity, linear expansion coefficient, compaction capacity, cohesion (c?), and internal friction angle (ϕ) of saturated soils. We observed that the clay content was the attribute that most influenced the geotechnical characteristics. All soils showed expansion potential above 0.01, considered as very high. The kaolinitic Vertisol showed the lowest clay activity. However, the clay content of 68% contributed to this soil to present an expansion potential similar to the smectite Vertisol with clay content of 35%. The major values of soil compaction were observed for the kaolinitic Vertisol, which presented greater reduction of void ratio and higher density as a function of moisture increase. For this soil, the optimal moisture content (OMC) and maximum dry density (MDD) were 22% and 1.65 g cm-3, respectively. The other soils presented OMC between 18-41% and MDD between 1.75-1.24 g cm-3. These smectite-soils, MDD decreased with increasing of OMC. All soils had low c? values, which is expected for high clay content soils. The c? values increased with increasing of kaolinite and decreased with increasing of clay content. The kaolinite Vertisol showed c? of 0.19 kgf cm-2. The c? values to Sm-K Vertisols ranged between 0.05-0.11 kgf cm-2. As for smectite-soil, c? values ranged between 0.02-0.03 kgf cm-2. Low ϕ values were observed for all soils, which indicates low shear resistance. In its turn, ϕ was more influenced by granulometry, in which higher levels of sand and gravel provided higher ϕ, independently of the type of clay. Vertisols with different mineralogy present different geotechnical characteristics. Keywords: Smectite; kaolinite; expansive soils
650 $aSmectite
650 $aSoil
650 $aSolo
650 $aVertissolo
653 $aBahia
653 $aCaracterização geotécnica
653 $aCaulinite
653 $aSolos expansivos
700 1 $aASSIS, I. R. de
700 1 $aKER, J. C.
700 1 $aMARQUES, E. A. G.
700 1 $aCUNHA, T. J. F.
700 1 $aSOUZA, L. da S.
700 1 $aVARGAS SOBRINHO, V.
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