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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
12/01/2011 |
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Data da última atualização: |
12/01/2011 |
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Autoria: |
CHAVES, D. F.; MORAIS, J. H. G.; SILVA, J. B. da; ANDRÉ JÚNIOR, J.; COSTA, W. P. da; FAÇANHA, D. A. E. |
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Título: |
Respostas hematológicas e fisiológicas de ovinos Morada Nova avaliados em ambiente semiárido. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 6.; SIMPÓSIO NORDESTINO DE ALIMENTAÇÃO DE RUMINANTES, 7.; FÓRUM DE COORDENADORES DE PÓS GRADUAÇÃO EM PRODUÇÃO ANIMAL DO NORDESTE, 1.; FÓRUM DE AGROECOLOGIA RO RIO GRANDE DO NORTE, 1., 2010, Mossoró. Anais... Mossoró: Sociedade Nordestina de Producao Animal; UFERSA, 2010. 3 f. 1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
Esse estudo objetivou analisar os efeitos do ambiente semiárido sobre os parâmetros fisiológicos e hematológicos nos Morada Nova. O experimento foi conduzido em 4 dias coletas nos horários de 6, 15 e 21 horas do dia, sendo registradas frequência respiratória (FR) e a temperatura retal (TR). Nove matrizes foram utilizadas. Avaliações hematológicas foram realizadas através amostras de sangue, para determinações hematológicas. As variáveis ambientais foram aferidas. O estudo mostrou que o aumento da frequência respiratória observada no estudo pode ser considerado o principal mecanismo de controle de homeotermia sob as condições ambientais impostas, acompanhado por outros mecanismos, como o aumento da temperatura retal e que as condições de semiárido não foram capazes
de alterar as respostas hematológicas, mostrando a adaptabilidade dos ovinos Morada Nova ao ambiente. |
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Palavras-Chave: |
Adaptabilidade; Parâmetro fisiológico; Parâmetro hematológico; Raça Morada Nova. |
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Thesagro: |
Aclimatação; Bioclimatologia; Hematologia; Ovino; Sangue. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02013naa a2200289 a 4500
001 1872720
005 2011-01-12
008 2010 bl uuuu u00u1 u #d
100 1 $aCHAVES, D. F.
245 $aRespostas hematológicas e fisiológicas de ovinos Morada Nova avaliados em ambiente semiárido.
260 $c2010
520 $aEsse estudo objetivou analisar os efeitos do ambiente semiárido sobre os parâmetros fisiológicos e hematológicos nos Morada Nova. O experimento foi conduzido em 4 dias coletas nos horários de 6, 15 e 21 horas do dia, sendo registradas frequência respiratória (FR) e a temperatura retal (TR). Nove matrizes foram utilizadas. Avaliações hematológicas foram realizadas através amostras de sangue, para determinações hematológicas. As variáveis ambientais foram aferidas. O estudo mostrou que o aumento da frequência respiratória observada no estudo pode ser considerado o principal mecanismo de controle de homeotermia sob as condições ambientais impostas, acompanhado por outros mecanismos, como o aumento da temperatura retal e que as condições de semiárido não foram capazes de alterar as respostas hematológicas, mostrando a adaptabilidade dos ovinos Morada Nova ao ambiente.
650 $aAclimatação
650 $aBioclimatologia
650 $aHematologia
650 $aOvino
650 $aSangue
653 $aAdaptabilidade
653 $aParâmetro fisiológico
653 $aParâmetro hematológico
653 $aRaça Morada Nova
700 1 $aMORAIS, J. H. G.
700 1 $aSILVA, J. B. da
700 1 $aANDRÉ JÚNIOR, J.
700 1 $aCOSTA, W. P. da
700 1 $aFAÇANHA, D. A. E.
773 $tIn: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 6.; SIMPÓSIO NORDESTINO DE ALIMENTAÇÃO DE RUMINANTES, 7.; FÓRUM DE COORDENADORES DE PÓS GRADUAÇÃO EM PRODUÇÃO ANIMAL DO NORDESTE, 1.; FÓRUM DE AGROECOLOGIA RO RIO GRANDE DO NORTE, 1., 2010, Mossoró. Anais... Mossoró: Sociedade Nordestina de Producao Animal; UFERSA, 2010. 3 f. 1 CD-ROM.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
05/01/2017 |
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Data da última atualização: |
08/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ARAUJO, J. K. S.; SOUZA JÚNIOR, V. S. de; MARQUES, F. A.; VORONEY, P.; SOUZA, R. A. da S. |
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Afiliação: |
JANE KELLY SILVA ARAUJO, UFRPE; VALDOMIRO SEVERINO DE SOUZA JÚNIOR, UFRPE; FLAVIO ADRIANO MARQUES, CNPS; PAUL VORONEY, School of Environmental Sciences, University of Guelph; REGILENE ANGELICA DA SILVA SOUZA, UFRA. |
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Título: |
Assessment of carbon storage under rainforests in Humic Hapludox along a climosequence extending from the Atlantic coast to the highlands of northeastern Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Science of The Total Environment, v. 568, p. 339-349, Oct. 2016. |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2016.06.025 |
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Idioma: |
Inglês |
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Conteúdo: |
An understanding of the stock of soil organic carbon (SOC) in the umbric epipedon of Oxisols located in the tropical forests surrounded by a semi-arid region is limited but essential because of their importance in the global cycle of carbon (C). The purpose of this study was to assess the effects of climatic (temperature and rainfall), soil organic matter (SOM) composition and litter on the stability of C in surfaces and subsurfaces in five Humic Oxisols along a 475-km climo sequence from 143 to 963m a.s.l. in a tropical environment in northeastern Brazil. Weassessed vertical changes in SOC; soil total nitrogen (N); C from the microbial biomass; 13C, 15N and the humified composition of SOM; the composition of the humin (HUM) fraction by Fourier Transform Infrared (FTIR); and Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) at depth. The elemental and isotopic composition of the litter samples were analyzed in all areas studied. The results indicated that the current climate and recalcitrant organic compounds are not preponderant factors in the formation of the umbric epipedon, as suggested by the partial influence of temperature and rainfall on SOM. In addition, SOM was dominated by easily decomposable compounds, as indicated by the predominance of aliphatic C-H groups in the HUM fraction in the FTIR spectra; by the thermal oxidation through DSC-TG, which revealed that approximately 50% of the HUM was composed easily decomposable compounds; and by the high proportion of organic C present in the microbial biomass. Values of 13C showed a predominance of C3 plant-C in SOM where as 15N patterns indicated that N dynamics differ among the profiles and drive the accumulation of C. These findings can help to characterize the susceptibility of these soils to changes in climate and land use and the implications for the sequestration of soil C. MenosAn understanding of the stock of soil organic carbon (SOC) in the umbric epipedon of Oxisols located in the tropical forests surrounded by a semi-arid region is limited but essential because of their importance in the global cycle of carbon (C). The purpose of this study was to assess the effects of climatic (temperature and rainfall), soil organic matter (SOM) composition and litter on the stability of C in surfaces and subsurfaces in five Humic Oxisols along a 475-km climo sequence from 143 to 963m a.s.l. in a tropical environment in northeastern Brazil. Weassessed vertical changes in SOC; soil total nitrogen (N); C from the microbial biomass; 13C, 15N and the humified composition of SOM; the composition of the humin (HUM) fraction by Fourier Transform Infrared (FTIR); and Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) at depth. The elemental and isotopic composition of the litter samples were analyzed in all areas studied. The results indicated that the current climate and recalcitrant organic compounds are not preponderant factors in the formation of the umbric epipedon, as suggested by the partial influence of temperature and rainfall on SOM. In addition, SOM was dominated by easily decomposable compounds, as indicated by the predominance of aliphatic C-H groups in the HUM fraction in the FTIR spectra; by the thermal oxidation through DSC-TG, which revealed that approximately 50% of the HUM was composed easily decomposable compounds; and by the high p... Mostrar Tudo |
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Palavras-Chave: |
Biomassa microbiana; Carbono profundo; FTIR; Lixo; Nitrogênio do solo; Semiárido. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02734naa a2200253 a 4500
001 2059966
005 2021-10-08
008 2016 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2016.06.025$2DOI
100 1 $aARAUJO, J. K. S.
245 $aAssessment of carbon storage under rainforests in Humic Hapludox along a climosequence extending from the Atlantic coast to the highlands of northeastern Brazil.$h[electronic resource]
260 $c2016
520 $aAn understanding of the stock of soil organic carbon (SOC) in the umbric epipedon of Oxisols located in the tropical forests surrounded by a semi-arid region is limited but essential because of their importance in the global cycle of carbon (C). The purpose of this study was to assess the effects of climatic (temperature and rainfall), soil organic matter (SOM) composition and litter on the stability of C in surfaces and subsurfaces in five Humic Oxisols along a 475-km climo sequence from 143 to 963m a.s.l. in a tropical environment in northeastern Brazil. Weassessed vertical changes in SOC; soil total nitrogen (N); C from the microbial biomass; 13C, 15N and the humified composition of SOM; the composition of the humin (HUM) fraction by Fourier Transform Infrared (FTIR); and Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) at depth. The elemental and isotopic composition of the litter samples were analyzed in all areas studied. The results indicated that the current climate and recalcitrant organic compounds are not preponderant factors in the formation of the umbric epipedon, as suggested by the partial influence of temperature and rainfall on SOM. In addition, SOM was dominated by easily decomposable compounds, as indicated by the predominance of aliphatic C-H groups in the HUM fraction in the FTIR spectra; by the thermal oxidation through DSC-TG, which revealed that approximately 50% of the HUM was composed easily decomposable compounds; and by the high proportion of organic C present in the microbial biomass. Values of 13C showed a predominance of C3 plant-C in SOM where as 15N patterns indicated that N dynamics differ among the profiles and drive the accumulation of C. These findings can help to characterize the susceptibility of these soils to changes in climate and land use and the implications for the sequestration of soil C.
653 $aBiomassa microbiana
653 $aCarbono profundo
653 $aFTIR
653 $aLixo
653 $aNitrogênio do solo
653 $aSemiárido
700 1 $aSOUZA JÚNIOR, V. S. de
700 1 $aMARQUES, F. A.
700 1 $aVORONEY, P.
700 1 $aSOUZA, R. A. da S.
773 $tScience of The Total Environment$gv. 568, p. 339-349, Oct. 2016.
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