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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
07/03/2009 |
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Data da última atualização: |
22/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FARIA, M. T. de; CALDERWOOD, M. S.; ATHANAZIO, D. A.; MAcBRIDE, A. J. A.; HARTSKEERL, R. A.; PEREIRA, M. M.; KO, A. I.; REIS, M. G. |
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Afiliação: |
MARCOS TUCUNDUVA DE FARIA, CPATU; Michael S. Calderwood, Medicine Brigham and Women's Hospital; Daniel A. Athanazio, UFBA; Alan J.A. McBride, Fundação Oswaldo Cruz; Rudy A. Hartskeerl, Royal Tropical Institute; Martha Maria Pereira, Fundação Oswaldo Cruz; Albert I. Ko, Fundação Oswaldo Cruz; Mitermayer G. Reis, Fundação Oswaldo Cruz. |
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Título: |
Carriage of Leptospira interrogans among domestic rats from an urban setting highly endemic for leptospirosis in Brazil. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Acta Tropica, v. 108, n. 1, p. 1-5, 2008. |
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DOI: |
http://dx.doi.org/10.1016/j.actatropica.2008.07.005 |
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Idioma: |
Inglês |
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Conteúdo: |
A survey was conducted to identify reservoirs for urban leptospirosis in the city of Salvador, Brazil. Sampling protocols were performed in the vicinity of households of severe leptospirosis cases identified during active hospital-based surveillance. Among a total of 142 captured Rattus norvegicus (Norwegian brown rat), 80.3% had a positive culture isolate from urine or kidney specimens and 68.1% had a positive serum sample by microscopic agglutination test (MAT) titre of ?1:100. Monoclonal antibody-based typing of isolates identified that the agent carried by rats was Leptospira interrogans serovar Copenhageni, which was the same serovar isolated from patients during hospital-based surveillance. Leptospira spp. were not isolated from 8 captured Didelphis marsupialis (Opossum), while 5/7 had a positive MAT titre against a saprophytic serogroup. R. rattus were not captured during the survey. The study findings indicate that the brown rat is a major rodent reservoir for leptospirosis in this urban setting. Furthermore, the high carriage rates of L. interrogans serovar Copenhageni in captured rats suggest that there is a significant degree of environmental contamination with this agent in the household environment of high risk areas, which in turn is a cause of transmission during urban epidemics. |
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Palavras-Chave: |
Brasil. |
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Thesagro: |
Anatomia Animal; Bactéria; Doença Animal; Leptospirose; Morfologia Animal; Rato. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02215naa a2200301 a 4500
001 1410001
005 2022-11-22
008 2008 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.actatropica.2008.07.005$2DOI
100 1 $aFARIA, M. T. de
245 $aCarriage of Leptospira interrogans among domestic rats from an urban setting highly endemic for leptospirosis in Brazil.$h[electronic resource]
260 $c2008
520 $aA survey was conducted to identify reservoirs for urban leptospirosis in the city of Salvador, Brazil. Sampling protocols were performed in the vicinity of households of severe leptospirosis cases identified during active hospital-based surveillance. Among a total of 142 captured Rattus norvegicus (Norwegian brown rat), 80.3% had a positive culture isolate from urine or kidney specimens and 68.1% had a positive serum sample by microscopic agglutination test (MAT) titre of ?1:100. Monoclonal antibody-based typing of isolates identified that the agent carried by rats was Leptospira interrogans serovar Copenhageni, which was the same serovar isolated from patients during hospital-based surveillance. Leptospira spp. were not isolated from 8 captured Didelphis marsupialis (Opossum), while 5/7 had a positive MAT titre against a saprophytic serogroup. R. rattus were not captured during the survey. The study findings indicate that the brown rat is a major rodent reservoir for leptospirosis in this urban setting. Furthermore, the high carriage rates of L. interrogans serovar Copenhageni in captured rats suggest that there is a significant degree of environmental contamination with this agent in the household environment of high risk areas, which in turn is a cause of transmission during urban epidemics.
650 $aAnatomia Animal
650 $aBactéria
650 $aDoença Animal
650 $aLeptospirose
650 $aMorfologia Animal
650 $aRato
653 $aBrasil
700 1 $aCALDERWOOD, M. S.
700 1 $aATHANAZIO, D. A.
700 1 $aMAcBRIDE, A. J. A.
700 1 $aHARTSKEERL, R. A.
700 1 $aPEREIRA, M. M.
700 1 $aKO, A. I.
700 1 $aREIS, M. G.
773 $tActa Tropica$gv. 108, n. 1, p. 1-5, 2008.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
19/01/2024 |
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Data da última atualização: |
19/01/2024 |
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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: |
ARAÚJO, C. de A.; ARAUJO, G. G. L. de; NOVAES, J. J. da S.; CAMPOS, F. S.; LIMA, D. O.; BORGES, E. N.; GOIS, G. C.; SILVA, C. de S.; SILVA, T. G. F. da; SÁ, J. M. de. |
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Afiliação: |
CLEYTON DE ALMEIDA ARAÚJO, Univasf; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; JUDICAEL JANDERSON DA SILVA NOVAES, Univasf; FLEMING SENA CAMPOS, Federal Rural University of Pernambuco, Serra Talhada, PE; DENESON OLIVEIRA LIMA, Univasf; ELIZÂNGELA NUNES BORGES, Univasf; GLAYCIANE COSTA GOIS, Univasf; CRISLANE DE SOUZA SILVA, Univasf; THIERES GEORGE FREIRE DA SILVA, Federal Rural University of Pernambuco, Serra Talhada, PE; JOSÉ MANOEL DE SÁ, Univasf. |
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Título: |
Influence of cactus pear cultivation density on the physicochemical characteristics of the soil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Soil and Tillage Research, v. 232, 105771, Aug. 2023. |
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DOI: |
https://doi.org/10.1016/j.still.2023.105771 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective was to evaluate the effect of the planting density of cactus pear cv. Mexican elephant ear under soil physical and chemical properties. Four planting densities were tested: 30,000, 45,000, 60,000 and 75,000 plants distributed in a randomised block design with four replications. After 360 days of cultivation, soil samples were taken in different profiles (0.0–0.10, 0.10–0.20, 0.20–0.30 and 0.30–0.40 m). The physical–chemical analysis included soil density, particle density, porosity, pH, electrical conductivity (EC), phosphorus (P), potassium (K+), sodium (Na+), calcium (Ca2+), magnesium (Mg2+), copper (Cu2+), iron (Fe2+), manganese (Mn2+), zinc (Zn2+), exchangeable acidity (H+Al), sums of bases (SB), cation exchange capacity and base saturation (V). The results were tested using analysis of variance, regression at 5% probability and principal component analysis (PCA). Physical properties along the soil profile and soil chemical properties in the 0–0.10 m profile were not altered (P > 0.05) by the density. There was a decreasing linear effect (P < 0.05) of density on the P content in the 0.10–0.20, 0.20–0.30 and 0.30–0.40 m profiles. Mg, Zn and V in the 0.10–0.20 m profile and Ca in the 0.30–0.40 m profile decreased linearly (P < 0.05) as a function of density. There was an increasing linear effect (P < 0.05) of planting density on Fe in the 0.20–0.30 m profile. The PCA showed that the factor loadings of the chemical properties of the soil in the different profiles were greater than 75% in the first two components. Except for the 0–0.10 m profile, with 55.77%. Minerals that contributed most to PC were Ca, K, P, Mg and Mn. In this sense, increasing the planting density of cactus pear without the use of fertiliser demands more from the soil, recommending lower densities between 30,000 and 45,000 plants ha−1. MenosThe objective was to evaluate the effect of the planting density of cactus pear cv. Mexican elephant ear under soil physical and chemical properties. Four planting densities were tested: 30,000, 45,000, 60,000 and 75,000 plants distributed in a randomised block design with four replications. After 360 days of cultivation, soil samples were taken in different profiles (0.0–0.10, 0.10–0.20, 0.20–0.30 and 0.30–0.40 m). The physical–chemical analysis included soil density, particle density, porosity, pH, electrical conductivity (EC), phosphorus (P), potassium (K+), sodium (Na+), calcium (Ca2+), magnesium (Mg2+), copper (Cu2+), iron (Fe2+), manganese (Mn2+), zinc (Zn2+), exchangeable acidity (H+Al), sums of bases (SB), cation exchange capacity and base saturation (V). The results were tested using analysis of variance, regression at 5% probability and principal component analysis (PCA). Physical properties along the soil profile and soil chemical properties in the 0–0.10 m profile were not altered (P > 0.05) by the density. There was a decreasing linear effect (P < 0.05) of density on the P content in the 0.10–0.20, 0.20–0.30 and 0.30–0.40 m profiles. Mg, Zn and V in the 0.10–0.20 m profile and Ca in the 0.30–0.40 m profile decreased linearly (P < 0.05) as a function of density. There was an increasing linear effect (P < 0.05) of planting density on Fe in the 0.20–0.30 m profile. The PCA showed that the factor loadings of the chemical properties of the soil in the different profi... Mostrar Tudo |
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Palavras-Chave: |
Componente edáfica; Macronutrientes; Orelha de elefante mexicana. |
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Thesagro: |
Cálcio; Palma Forrageira. |
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Thesaurus NAL: |
Cactus pears; Calcium; Opuntia stricta. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02890naa a2200337 a 4500
001 2161086
005 2024-01-19
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.still.2023.105771$2DOI
100 1 $aARAÚJO, C. de A.
245 $aInfluence of cactus pear cultivation density on the physicochemical characteristics of the soil.$h[electronic resource]
260 $c2023
520 $aThe objective was to evaluate the effect of the planting density of cactus pear cv. Mexican elephant ear under soil physical and chemical properties. Four planting densities were tested: 30,000, 45,000, 60,000 and 75,000 plants distributed in a randomised block design with four replications. After 360 days of cultivation, soil samples were taken in different profiles (0.0–0.10, 0.10–0.20, 0.20–0.30 and 0.30–0.40 m). The physical–chemical analysis included soil density, particle density, porosity, pH, electrical conductivity (EC), phosphorus (P), potassium (K+), sodium (Na+), calcium (Ca2+), magnesium (Mg2+), copper (Cu2+), iron (Fe2+), manganese (Mn2+), zinc (Zn2+), exchangeable acidity (H+Al), sums of bases (SB), cation exchange capacity and base saturation (V). The results were tested using analysis of variance, regression at 5% probability and principal component analysis (PCA). Physical properties along the soil profile and soil chemical properties in the 0–0.10 m profile were not altered (P > 0.05) by the density. There was a decreasing linear effect (P < 0.05) of density on the P content in the 0.10–0.20, 0.20–0.30 and 0.30–0.40 m profiles. Mg, Zn and V in the 0.10–0.20 m profile and Ca in the 0.30–0.40 m profile decreased linearly (P < 0.05) as a function of density. There was an increasing linear effect (P < 0.05) of planting density on Fe in the 0.20–0.30 m profile. The PCA showed that the factor loadings of the chemical properties of the soil in the different profiles were greater than 75% in the first two components. Except for the 0–0.10 m profile, with 55.77%. Minerals that contributed most to PC were Ca, K, P, Mg and Mn. In this sense, increasing the planting density of cactus pear without the use of fertiliser demands more from the soil, recommending lower densities between 30,000 and 45,000 plants ha−1.
650 $aCactus pears
650 $aCalcium
650 $aOpuntia stricta
650 $aCálcio
650 $aPalma Forrageira
653 $aComponente edáfica
653 $aMacronutrientes
653 $aOrelha de elefante mexicana
700 1 $aARAUJO, G. G. L. de
700 1 $aNOVAES, J. J. da S.
700 1 $aCAMPOS, F. S.
700 1 $aLIMA, D. O.
700 1 $aBORGES, E. N.
700 1 $aGOIS, G. C.
700 1 $aSILVA, C. de S.
700 1 $aSILVA, T. G. F. da
700 1 $aSÁ, J. M. de
773 $tSoil and Tillage Research$gv. 232, 105771, Aug. 2023.
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