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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
07/11/2006 |
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Data da última atualização: |
27/01/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ANDRIOLI, A.; GOUVEIA, A. M. G.; MARTINS, A. de S.; PINHEIRO, R. R.; SANTOS, D. O. |
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Afiliação: |
ALICE ANDRIOLI, CNPC; Aurora Maria Guimarães Gouveia, UFMG; Almir de Sousa Martins; RAYMUNDO RIZALDO PINHEIRO, CNPC; DIONES OLIVEIRA SANTOS, CNPC. |
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Título: |
Fatores de risco na transmissão do lentivírus caprino pelo sêmen. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 41, n. 8, p. 1313-1319, ago. 2006. |
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DOI: |
10.1590/S0100-204X2006000800015 |
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Idioma: |
Português |
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Conteúdo: |
Resumo: 0 objetivo deste trabalho foi avaliar a presença do DNA pro-viral do lentivirus caprino (LVC) em ejaculados de machos infectados naturalmente, e verificar a influencia da lavagem do semen e da presença de inflamaçao testicular sobre a carga viral. Foram realizadas oito coletas de semen de sete reprodutores soropositivos para o LVC: quatro antes dos animais sofrerem dano testicular e quatro depois. Entre as coletas realizadas na mesma semana, em uma, 0 ejaculado era lavado, para retirada do plasma seminal, e na outra, nao. 0 DNA pro-viral do LVC foi identificado pela reaçao ern cadeia da polimerase Nested (PCR Nested), e pelo isolarnento viral. 0 virus foi isolado em 7,1 % das amostras. A PCR identificou 0 DNA pro-viral ern 35,7% do total das amostras: 17,9% nas amostras lavadas e 53,6% das amostras de semen integrais. 0 dano ao testiculo permite maior fluxo do virus para o semen, pois antes do dano, 21,4% das amostras foram positivas e pos-dano, 50%. A transmissao do LVC pelo semen de reprodutores caprinos e potencializada pela presença de inflamaçoes testiculares e pelo fato de o semen criopreservado conter o LVC na forma infectante.
[Risk factors in caprine lentivirus transmission through semen].
Abstract: The objective of this work was to evaluate the presence of the DNA provirus of the caprine lentivirus (LVC) in ejaculates of naturally infected males, and to verify the influence of the wash of the semen as well as the presence of testicle inflammation on the viral load. Eight semen collections of seven soropositive reproducers were accomplished, four before testicle injury and four after injury. Amongst the collections carried out at the same week, in one the ejaculate was washed, to withdraw the plasma seminal, and in the other it was not. The provirus DNA was identified both by Nested polymerase chain reaction technique (Nested PCR) and by the viral isolation. The virus was isolated in 7.1% of the samples. The PCR identified the provirus DNA in 35.7% of all samples, 17.9% in the washed samples and 53.6% of the integral semen samples. The injury of the testicle tends to greater flow of virus for the semen, therefore, before injury, 21.4% of the samples were positive and after-injury, 50%. Risk of transmission of the LVC by semen of goat reproducers is strengthened by the presence of testicle inflammations and the fact that the criopreserved semen contains the LVC in infecting form. MenosResumo: 0 objetivo deste trabalho foi avaliar a presença do DNA pro-viral do lentivirus caprino (LVC) em ejaculados de machos infectados naturalmente, e verificar a influencia da lavagem do semen e da presença de inflamaçao testicular sobre a carga viral. Foram realizadas oito coletas de semen de sete reprodutores soropositivos para o LVC: quatro antes dos animais sofrerem dano testicular e quatro depois. Entre as coletas realizadas na mesma semana, em uma, 0 ejaculado era lavado, para retirada do plasma seminal, e na outra, nao. 0 DNA pro-viral do LVC foi identificado pela reaçao ern cadeia da polimerase Nested (PCR Nested), e pelo isolarnento viral. 0 virus foi isolado em 7,1 % das amostras. A PCR identificou 0 DNA pro-viral ern 35,7% do total das amostras: 17,9% nas amostras lavadas e 53,6% das amostras de semen integrais. 0 dano ao testiculo permite maior fluxo do virus para o semen, pois antes do dano, 21,4% das amostras foram positivas e pos-dano, 50%. A transmissao do LVC pelo semen de reprodutores caprinos e potencializada pela presença de inflamaçoes testiculares e pelo fato de o semen criopreservado conter o LVC na forma infectante.
[Risk factors in caprine lentivirus transmission through semen].
Abstract: The objective of this work was to evaluate the presence of the DNA provirus of the caprine lentivirus (LVC) in ejaculates of naturally infected males, and to verify the influence of the wash of the semen as well as the presence of testicle inflammation on the v... Mostrar Tudo |
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Palavras-Chave: |
Artrite Encefalite; CAEV; Infected bucks. |
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Thesagro: |
Caprino; Reprodução animal; Sêmen; Transmissão de doença. |
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Thesaurus Nal: |
Animal reproduction; Artificial insemination; Caprine arthritis encephalitis virus; Goats; Infectious diseases; Lentivirus; Reproductive disorders; Virus transmission. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 03505naa a2200361 a 4500
001 1530230
005 2021-01-27
008 2006 bl uuuu u00u1 u #d
024 7 $a10.1590/S0100-204X2006000800015$2DOI
100 1 $aANDRIOLI, A.
245 $aFatores de risco na transmissão do lentivírus caprino pelo sêmen.
260 $c2006
520 $aResumo: 0 objetivo deste trabalho foi avaliar a presença do DNA pro-viral do lentivirus caprino (LVC) em ejaculados de machos infectados naturalmente, e verificar a influencia da lavagem do semen e da presença de inflamaçao testicular sobre a carga viral. Foram realizadas oito coletas de semen de sete reprodutores soropositivos para o LVC: quatro antes dos animais sofrerem dano testicular e quatro depois. Entre as coletas realizadas na mesma semana, em uma, 0 ejaculado era lavado, para retirada do plasma seminal, e na outra, nao. 0 DNA pro-viral do LVC foi identificado pela reaçao ern cadeia da polimerase Nested (PCR Nested), e pelo isolarnento viral. 0 virus foi isolado em 7,1 % das amostras. A PCR identificou 0 DNA pro-viral ern 35,7% do total das amostras: 17,9% nas amostras lavadas e 53,6% das amostras de semen integrais. 0 dano ao testiculo permite maior fluxo do virus para o semen, pois antes do dano, 21,4% das amostras foram positivas e pos-dano, 50%. A transmissao do LVC pelo semen de reprodutores caprinos e potencializada pela presença de inflamaçoes testiculares e pelo fato de o semen criopreservado conter o LVC na forma infectante. [Risk factors in caprine lentivirus transmission through semen]. Abstract: The objective of this work was to evaluate the presence of the DNA provirus of the caprine lentivirus (LVC) in ejaculates of naturally infected males, and to verify the influence of the wash of the semen as well as the presence of testicle inflammation on the viral load. Eight semen collections of seven soropositive reproducers were accomplished, four before testicle injury and four after injury. Amongst the collections carried out at the same week, in one the ejaculate was washed, to withdraw the plasma seminal, and in the other it was not. The provirus DNA was identified both by Nested polymerase chain reaction technique (Nested PCR) and by the viral isolation. The virus was isolated in 7.1% of the samples. The PCR identified the provirus DNA in 35.7% of all samples, 17.9% in the washed samples and 53.6% of the integral semen samples. The injury of the testicle tends to greater flow of virus for the semen, therefore, before injury, 21.4% of the samples were positive and after-injury, 50%. Risk of transmission of the LVC by semen of goat reproducers is strengthened by the presence of testicle inflammations and the fact that the criopreserved semen contains the LVC in infecting form.
650 $aAnimal reproduction
650 $aArtificial insemination
650 $aCaprine arthritis encephalitis virus
650 $aGoats
650 $aInfectious diseases
650 $aLentivirus
650 $aReproductive disorders
650 $aVirus transmission
650 $aCaprino
650 $aReprodução animal
650 $aSêmen
650 $aTransmissão de doença
653 $aArtrite Encefalite
653 $aCAEV
653 $aInfected bucks
700 1 $aGOUVEIA, A. M. G.
700 1 $aMARTINS, A. de S.
700 1 $aPINHEIRO, R. R.
700 1 $aSANTOS, D. O.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 41, n. 8, p. 1313-1319, ago. 2006.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
16/02/2017 |
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Data da última atualização: |
19/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
TRITSCH, I.; SIST, P.; NARVAES, I. da S.; FREITAS, L. J. M. de; BLANC, L.; BOURGOIN, C.; CORNU, G.; GOND, V. |
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Afiliação: |
Isabelle Tritsch, CIRAD; Plinio Sist, CIRAD; Igor da Silva Narvaes, INPE-CRA; LUCAS JOSE MAZZEI DE FREITAS, CPATU; Lilian Blanc, CIRAD; Clément Bourgoin, CIRAD; Guillaume Cornu, CIRAD; Valery Gond, CIRAD. |
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Título: |
Multiple patterns of forest disturbance and logging shape forest landscapes in Paragominas, Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Forests, v. 7, n. 12, 2016. |
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DOI: |
http://dx.doi.org/10.3390/f7120315 |
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Idioma: |
Inglês |
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Conteúdo: |
In the Brazilian Amazon, multiple logging activities are undergoing, involving different actors and interests. They shape a disturbance gradient bound to the intensity and frequency of logging, and forest management techniques. However, until now, few studies have been carried out at the landscape scale taking into account these multiple types of logging and this disturbance gradient. Here we address this issue of how to account for the multiple logging activities shaping the current forest landscape. We developed an inexpensive and efficient remote sensing methodology based on Landsat imagery to detect and track logging activity based on the monitoring of canopy openings. Then, we implemented a set of remote sensing indicators to follow the different trajectories of forest disturbance through time. Using these indicators, we emphasized five major spatial and temporal disturbance patterns occurring in the municipality of Paragominas (State of Pará, Brazilian Amazon), from well-managed forests to highly over-logged forests. Our disturbance indicators provide observable evidence for the difference between legal and illegal patterns, with some illegal areas having suffered more than three explorations in fifteen years. They also clearly underlined the efficiency of Reduced Impact Logging (RIL) techniques applied under Forest Stewardship Council (FSC) guidelines to reduce the logging impacts in terms of canopy openings. For these reasons, we argue the need to promote legal certified logging to conserve forests, as without them, many actors mine the forest resources without any concerns for future stocks. Finally, our remote tracking methodology, which produces easy to interpret disturbance indicators, could be a real boon to forest managers, including for conservationists working in protected areas and stakeholders dealing with international trade rules such as RBUE (Wood regulation of European Union) or FLEGT (Forest Law for Enforcement, Governance and Trade). MenosIn the Brazilian Amazon, multiple logging activities are undergoing, involving different actors and interests. They shape a disturbance gradient bound to the intensity and frequency of logging, and forest management techniques. However, until now, few studies have been carried out at the landscape scale taking into account these multiple types of logging and this disturbance gradient. Here we address this issue of how to account for the multiple logging activities shaping the current forest landscape. We developed an inexpensive and efficient remote sensing methodology based on Landsat imagery to detect and track logging activity based on the monitoring of canopy openings. Then, we implemented a set of remote sensing indicators to follow the different trajectories of forest disturbance through time. Using these indicators, we emphasized five major spatial and temporal disturbance patterns occurring in the municipality of Paragominas (State of Pará, Brazilian Amazon), from well-managed forests to highly over-logged forests. Our disturbance indicators provide observable evidence for the difference between legal and illegal patterns, with some illegal areas having suffered more than three explorations in fifteen years. They also clearly underlined the efficiency of Reduced Impact Logging (RIL) techniques applied under Forest Stewardship Council (FSC) guidelines to reduce the logging impacts in terms of canopy openings. For these reasons, we argue the need to promote legal certi... Mostrar Tudo |
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Palavras-Chave: |
Degradação florestal; Impactos de exploração madeireira; Indicadores espaciais e temporais; Padrões de perturbação; Paisagem florestal. |
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Thesagro: |
Sensoriamento Remoto. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/155848/1/MultiplePatterns.pdf
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Marc: |
LEADER 02901naa a2200301 a 4500
001 2064421
005 2022-05-19
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.3390/f7120315$2DOI
100 1 $aTRITSCH, I.
245 $aMultiple patterns of forest disturbance and logging shape forest landscapes in Paragominas, Brazil.$h[electronic resource]
260 $c2016
520 $aIn the Brazilian Amazon, multiple logging activities are undergoing, involving different actors and interests. They shape a disturbance gradient bound to the intensity and frequency of logging, and forest management techniques. However, until now, few studies have been carried out at the landscape scale taking into account these multiple types of logging and this disturbance gradient. Here we address this issue of how to account for the multiple logging activities shaping the current forest landscape. We developed an inexpensive and efficient remote sensing methodology based on Landsat imagery to detect and track logging activity based on the monitoring of canopy openings. Then, we implemented a set of remote sensing indicators to follow the different trajectories of forest disturbance through time. Using these indicators, we emphasized five major spatial and temporal disturbance patterns occurring in the municipality of Paragominas (State of Pará, Brazilian Amazon), from well-managed forests to highly over-logged forests. Our disturbance indicators provide observable evidence for the difference between legal and illegal patterns, with some illegal areas having suffered more than three explorations in fifteen years. They also clearly underlined the efficiency of Reduced Impact Logging (RIL) techniques applied under Forest Stewardship Council (FSC) guidelines to reduce the logging impacts in terms of canopy openings. For these reasons, we argue the need to promote legal certified logging to conserve forests, as without them, many actors mine the forest resources without any concerns for future stocks. Finally, our remote tracking methodology, which produces easy to interpret disturbance indicators, could be a real boon to forest managers, including for conservationists working in protected areas and stakeholders dealing with international trade rules such as RBUE (Wood regulation of European Union) or FLEGT (Forest Law for Enforcement, Governance and Trade).
650 $aAmazonia
650 $aSensoriamento Remoto
653 $aDegradação florestal
653 $aImpactos de exploração madeireira
653 $aIndicadores espaciais e temporais
653 $aPadrões de perturbação
653 $aPaisagem florestal
700 1 $aSIST, P.
700 1 $aNARVAES, I. da S.
700 1 $aFREITAS, L. J. M. de
700 1 $aBLANC, L.
700 1 $aBOURGOIN, C.
700 1 $aCORNU, G.
700 1 $aGOND, V.
773 $tForests$gv. 7, n. 12, 2016.
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Embrapa Amazônia Oriental (CPATU) |
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