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Registro Completo |
Biblioteca(s): |
Embrapa Agrossilvipastoril. |
Data corrente: |
03/11/2018 |
Data da última atualização: |
03/11/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SOCOLOSKI, S. N. G.; CASTRO, B. G. de; CORDEIRO, M. D.; FONSECA, A. H. da; CEPEDA, M. B.; NICOLINO, R. R.; LOPES, L. B. |
Afiliação: |
SUYANE NAYARA GARCIA SOCOLOSKI, UFMT, SINOP; BRUNO GOMES DE CASTRO, UFMT, SINOP; MATHEUS DIAS CORDEIRO, UFRRJ, SEROPEDICA; ADIVALDO HENRIQUE DA FONSECA, UFRRJ, SEROPEDICA; MARCIO BARIZON CEPEDA, UFRRJ, SEROPEDICA; RAFAEL ROMERO NICOLINO, UFVJM, CACHOEIRA; LUCIANO BASTOS LOPES, CPAMT. |
Título: |
Epidemiological investigation of Borrelia burgdorferi in horses in the municipality of Sinop-MT, Brazil. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Tropical Animal Health and Production, v. 50, n. 4, p. 831-836, 2018. |
Páginas: |
6 p. |
ISSN: |
0049-4747 |
Idioma: |
Inglês |
Conteúdo: |
Borrelia burgdorferi sensu stricto is the main etiological agent of Lyme disease (LD) in the USA. In Brazil, it is believed that a similar spirochete is the causal agent of the Baggio?Yoshinari syndrome (BYS), a zoonosis also transmitted by ticks, whose clinical manifestations are similar to those of LD. Despite the epidemiological importance, there are no studies reporting the presence and the prevalence of B. burgdorferi among horses in Mato Grosso State. The aim of this study was to detect and measure the frequency of IgG antibodies anti-B. burgdorferi American strain G39/40 in horses in the municipality of Sinop, MT?Brazil, using the indirect enzyme-linked immunosorbent assay (ELISA) for serological diagnosis. Blood samples from 367 horses were collected in 81 farms. An epidemiological questionnaire was applied during the visits to obtain information related to the animals and the farms. From the 367 horses, 214 were positive for B. burgdorferi sensu stricto according to the results of the ELISA test, representing an apparent prevalence of 54.04% [CI = 0.4548051?0.6237234]. Concomitantly, 89 blood samples were taken for molecular analysis by nested polymerase chain reaction (PCR). According to the PCR test results, none of the samples were reactive, although 53 of these samples were reactive according to ELISA. Seventy five farms (92.59%) had at least one reactive horse for B. burgdorferi. Our results support the hypothesis of the presence of anti-Borrelia spp. antibodies in horses in Mato Grosso, reaching a high animal prevalence. Besides that, leisure/sport purposes proved to be a risk factor, with an odds ratio of 3.16. These findings clearly indicate the need of borreliosis control in Sinop and make a significant contribution to the knowledge of the disease in Mato Grosso. MenosBorrelia burgdorferi sensu stricto is the main etiological agent of Lyme disease (LD) in the USA. In Brazil, it is believed that a similar spirochete is the causal agent of the Baggio?Yoshinari syndrome (BYS), a zoonosis also transmitted by ticks, whose clinical manifestations are similar to those of LD. Despite the epidemiological importance, there are no studies reporting the presence and the prevalence of B. burgdorferi among horses in Mato Grosso State. The aim of this study was to detect and measure the frequency of IgG antibodies anti-B. burgdorferi American strain G39/40 in horses in the municipality of Sinop, MT?Brazil, using the indirect enzyme-linked immunosorbent assay (ELISA) for serological diagnosis. Blood samples from 367 horses were collected in 81 farms. An epidemiological questionnaire was applied during the visits to obtain information related to the animals and the farms. From the 367 horses, 214 were positive for B. burgdorferi sensu stricto according to the results of the ELISA test, representing an apparent prevalence of 54.04% [CI = 0.4548051?0.6237234]. Concomitantly, 89 blood samples were taken for molecular analysis by nested polymerase chain reaction (PCR). According to the PCR test results, none of the samples were reactive, although 53 of these samples were reactive according to ELISA. Seventy five farms (92.59%) had at least one reactive horse for B. burgdorferi. Our results support the hypothesis of the presence of anti-Borrelia spp. antibodie... Mostrar Tudo |
Palavras-Chave: |
Borrelia infection; Borreliosis; Enzyme linked immunosorbent assay. |
Thesagro: |
Elisa. |
Thesaurus Nal: |
Antibodies; Borrelia burgdorferi; Disease prevalence; Horse diseases; Horses; Lyme disease; Microbiology; Polymerase chain reaction; Prevalence. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02889naa a2200373 a 4500 001 2098720 005 2018-11-03 008 2018 bl uuuu u00u1 u #d 022 $a0049-4747 100 1 $aSOCOLOSKI, S. N. G. 245 $aEpidemiological investigation of Borrelia burgdorferi in horses in the municipality of Sinop-MT, Brazil.$h[electronic resource] 260 $c2018 300 $a6 p. 520 $aBorrelia burgdorferi sensu stricto is the main etiological agent of Lyme disease (LD) in the USA. In Brazil, it is believed that a similar spirochete is the causal agent of the Baggio?Yoshinari syndrome (BYS), a zoonosis also transmitted by ticks, whose clinical manifestations are similar to those of LD. Despite the epidemiological importance, there are no studies reporting the presence and the prevalence of B. burgdorferi among horses in Mato Grosso State. The aim of this study was to detect and measure the frequency of IgG antibodies anti-B. burgdorferi American strain G39/40 in horses in the municipality of Sinop, MT?Brazil, using the indirect enzyme-linked immunosorbent assay (ELISA) for serological diagnosis. Blood samples from 367 horses were collected in 81 farms. An epidemiological questionnaire was applied during the visits to obtain information related to the animals and the farms. From the 367 horses, 214 were positive for B. burgdorferi sensu stricto according to the results of the ELISA test, representing an apparent prevalence of 54.04% [CI = 0.4548051?0.6237234]. Concomitantly, 89 blood samples were taken for molecular analysis by nested polymerase chain reaction (PCR). According to the PCR test results, none of the samples were reactive, although 53 of these samples were reactive according to ELISA. Seventy five farms (92.59%) had at least one reactive horse for B. burgdorferi. Our results support the hypothesis of the presence of anti-Borrelia spp. antibodies in horses in Mato Grosso, reaching a high animal prevalence. Besides that, leisure/sport purposes proved to be a risk factor, with an odds ratio of 3.16. These findings clearly indicate the need of borreliosis control in Sinop and make a significant contribution to the knowledge of the disease in Mato Grosso. 650 $aAntibodies 650 $aBorrelia burgdorferi 650 $aDisease prevalence 650 $aHorse diseases 650 $aHorses 650 $aLyme disease 650 $aMicrobiology 650 $aPolymerase chain reaction 650 $aPrevalence 650 $aElisa 653 $aBorrelia infection 653 $aBorreliosis 653 $aEnzyme linked immunosorbent assay 700 1 $aCASTRO, B. G. de 700 1 $aCORDEIRO, M. D. 700 1 $aFONSECA, A. H. da 700 1 $aCEPEDA, M. B. 700 1 $aNICOLINO, R. R. 700 1 $aLOPES, L. B. 773 $tTropical Animal Health and Production$gv. 50, n. 4, p. 831-836, 2018.
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Embrapa Agrossilvipastoril (CPAMT) |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
18/08/2016 |
Data da última atualização: |
24/05/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 2 |
Autoria: |
PIPONIOT, C.; CABON, A.; DESCROIX, L.; DOURDAIN, A.; MAZZEI, L.; OULIAC, B.; RUTISHAUSER, E.; SIST, P.; HÉRAULT, B. |
Afiliação: |
Camille Piponiot, Université de la Guyane; Antoine Cabon, Centre Tecnològic Forestal de Catalunya; Laurent Descroix, ONF-Guyane, Réserve de Montabo; Aurélie Dourdain, CIRAD; LUCAS JOSE MAZZEI DE FREITAS, CPATU; Benjamin Ouliac, Guyane Energie Climat; Ervan Rutishauser, CarboForExpert; Plinio Sist, CIRAD; Bruno Hérault, CIRAD. |
Título: |
A methodological framework to assess the carbon balance of tropical managed forests. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Carbon Balance and Management, v. 11, n. 1, Dec. 2016. |
DOI: |
10.1186/s13021-016-0056-7 |
Idioma: |
Inglês |
Conteúdo: |
Background: Managed forests are a major component of tropical landscapes. Production forests as designated by national forest services cover up to 400 million ha, i.e. half of the forested area in the humid tropics. Forest management thus plays a major role in the global carbon budget, but with a lack of unified method to estimate carbon fluxes from tropical managed forests. In this study we propose a new time- and spatially-explicit methodology to estimate the above-ground carbon budget of selective logging at regional scale. Results: The yearly balance of a logging unit, i.e. the elementary management unit of a forest estate, is modelled by aggregating three sub-models encompassing (i) emissions from extracted wood, (ii) emissions from logging damage and deforested areas and (iii) carbon storage from post-logging recovery. Models are parametrised and uncertainties are propagated through a MCMC algorithm. As a case study, we used 38 years of National Forest Inventories in French Guiana, northeastern Amazonia, to estimate the above-ground carbon balance (i.e. the net carbon exchange with the atmosphere) of selectively logged forests. Over this period, the net carbon balance of selective logging in the French Guianan Permanent Forest Estate is estimated to be comprised between 0.12 and 1.33 Tg C, with a median value of 0.64 Tg C. Uncertainties over the model could be diminished by improving the accuracy of both logging damage and large woody necromass decay submodels. Conclusions: We propose an innovating carbon accounting framework relying upon basic logging statistics. This flexible tool allows carbon budget of tropical managed forests to be estimated in a wide range of tropical regions MenosBackground: Managed forests are a major component of tropical landscapes. Production forests as designated by national forest services cover up to 400 million ha, i.e. half of the forested area in the humid tropics. Forest management thus plays a major role in the global carbon budget, but with a lack of unified method to estimate carbon fluxes from tropical managed forests. In this study we propose a new time- and spatially-explicit methodology to estimate the above-ground carbon budget of selective logging at regional scale. Results: The yearly balance of a logging unit, i.e. the elementary management unit of a forest estate, is modelled by aggregating three sub-models encompassing (i) emissions from extracted wood, (ii) emissions from logging damage and deforested areas and (iii) carbon storage from post-logging recovery. Models are parametrised and uncertainties are propagated through a MCMC algorithm. As a case study, we used 38 years of National Forest Inventories in French Guiana, northeastern Amazonia, to estimate the above-ground carbon balance (i.e. the net carbon exchange with the atmosphere) of selectively logged forests. Over this period, the net carbon balance of selective logging in the French Guianan Permanent Forest Estate is estimated to be comprised between 0.12 and 1.33 Tg C, with a median value of 0.64 Tg C. Uncertainties over the model could be diminished by improving the accuracy of both logging damage and large woody necromass decay submodels. Conclus... Mostrar Tudo |
Palavras-Chave: |
Ciclo do carbono; Error propagation; Production forests; Selective logging. |
Thesagro: |
Floresta. |
Thesaurus NAL: |
Amazonia; carbon cycle. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/146542/1/10.1186-s13021-016-0056-7.pdf
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Marc: |
LEADER 02586naa a2200313 a 4500 001 2051226 005 2022-05-24 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1186/s13021-016-0056-7$2DOI 100 1 $aPIPONIOT, C. 245 $aA methodological framework to assess the carbon balance of tropical managed forests.$h[electronic resource] 260 $c2016 520 $aBackground: Managed forests are a major component of tropical landscapes. Production forests as designated by national forest services cover up to 400 million ha, i.e. half of the forested area in the humid tropics. Forest management thus plays a major role in the global carbon budget, but with a lack of unified method to estimate carbon fluxes from tropical managed forests. In this study we propose a new time- and spatially-explicit methodology to estimate the above-ground carbon budget of selective logging at regional scale. Results: The yearly balance of a logging unit, i.e. the elementary management unit of a forest estate, is modelled by aggregating three sub-models encompassing (i) emissions from extracted wood, (ii) emissions from logging damage and deforested areas and (iii) carbon storage from post-logging recovery. Models are parametrised and uncertainties are propagated through a MCMC algorithm. As a case study, we used 38 years of National Forest Inventories in French Guiana, northeastern Amazonia, to estimate the above-ground carbon balance (i.e. the net carbon exchange with the atmosphere) of selectively logged forests. Over this period, the net carbon balance of selective logging in the French Guianan Permanent Forest Estate is estimated to be comprised between 0.12 and 1.33 Tg C, with a median value of 0.64 Tg C. Uncertainties over the model could be diminished by improving the accuracy of both logging damage and large woody necromass decay submodels. Conclusions: We propose an innovating carbon accounting framework relying upon basic logging statistics. This flexible tool allows carbon budget of tropical managed forests to be estimated in a wide range of tropical regions 650 $aAmazonia 650 $acarbon cycle 650 $aFloresta 653 $aCiclo do carbono 653 $aError propagation 653 $aProduction forests 653 $aSelective logging 700 1 $aCABON, A. 700 1 $aDESCROIX, L. 700 1 $aDOURDAIN, A. 700 1 $aMAZZEI, L. 700 1 $aOULIAC, B. 700 1 $aRUTISHAUSER, E. 700 1 $aSIST, P. 700 1 $aHÉRAULT, B. 773 $tCarbon Balance and Management$gv. 11, n. 1, Dec. 2016.
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