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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/02/2016 |
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Data da última atualização: |
03/04/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, T. S. de; PINHEIRO, R. R.; COSTA, J. N.; LIMA, C. C. V. de; ANDRIOLI, A.; AZEVEDO, D. A. A. de; ARAÚJO, J. F.; SOUSA, A. L. M. de; PINHEIRO, D. N. S.; FERNANDES, F. M. C.; COSTA NETO, A. O. |
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Afiliação: |
Thiago S. de Souza, Universidade Federal do Recôncavo da Bahia - Cruz das Almas, BA, Brazil; RAYMUNDO RIZALDO PINHEIRO, CNPC; Joselito N. Costa, Universidade Federal do Recôncavo da Bahia - Cruz das Almas, BA, Brazil; Carla C. V. de Lima, Universidade Federal da Bahia (UFBA) - Salvador, BA, Brazil; ALICE ANDRIOLI, CNPC; Dalva A. A. de Azevedo, Universidade Estadual Vale do Acaraú (UVA) - Sobral, CE, Brazil; Juscilânia F. Araújo, UVA - Sobral, CE, Brazil; Ana Lídia M. de Sousa, UVA - Sobral, CE, Brazil; Danielle N. S. Pinheiro, Universidade Federal do Recôncavo da Bahia (UFRB) - Cruz das Almas, BA, Brazil; Flora M. C. Fernandes, Universidade Federal da Bahia (UFBA) - Salvador, BA, Brazil; Antonio O. Costa Neto, Universidade Estadual de Feira de Santana (UEFS) - Feira de Santana, BA, Brazil. |
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Título: |
Interspecific transmission of small ruminant lentiviruses from goats to sheep. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Brazilian Journal of Microbiology, São Paulo, v. 46, n. 3, p. 867-874, July/Sept. 2015. |
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DOI: |
http://dx.doi.org/10.1590/S1517-838246320140402 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstrract: This study was conducted in order to evaluate the transmission of caprine lentivirus to sheep using different experimental groups. The first one (colostrum group) was formed by nine lambs receiving colostrum from goats positive for small ruminant lentiviruses (SRLV). The second group (milk group) was established by nine lambs that received milk of these goats. Third was a control group, consisting of lambs that suckled colostrum and milk of negative mothers. Another experimental group (contact group) was formed by eight adult sheep, confined with two naturally infected goats. The groups were monitored by immunoblotting (IB), enzyme-linked immunosorbent assay (ELISA), agar gel immunodiffusion (AGID) and nested polymerase chain reaction (nPCR). All lambs that suckled colostrum and milk of infected goats and six sheep of the contact group had positive results in the nPCR, although seroconversion was detected only in three of the exposed animals, with no clinical lentiviruses manifestation, in 720 days of observation. There was a close relationship between viral sequences obtained from infected animals and the prototype CAEV-Cork. Thus, it was concluded that SRLV can be transmitted from goats to sheep, however, the degree of adaptation of the virus strain to the host species probably interferes with the infection persistence and seroconversion rate. |
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Palavras-Chave: |
Artrite-encefalite Caprina; CAEV; Caprine arthritis encephalit virus; Infecção cruzada; LVPR; Maedi-Visna; SRLV. |
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Thesagro: |
Caprino; Cordeiro; Doença animal; Ovino; Transmissão de doença. |
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Thesaurus Nal: |
Cross infection; Disease transmission; Goats; Lambs; Lentivirus; Sheep; Visna maedi virus. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/138226/1/CNPC-2015-Interspecies-transmission.pdf
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Marc: |
LEADER 02752naa a2200481 a 4500
001 2035807
005 2019-04-03
008 2015 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/S1517-838246320140402$2DOI
100 1 $aSOUZA, T. S. de
245 $aInterspecific transmission of small ruminant lentiviruses from goats to sheep.$h[electronic resource]
260 $c2015
520 $aAbstrract: This study was conducted in order to evaluate the transmission of caprine lentivirus to sheep using different experimental groups. The first one (colostrum group) was formed by nine lambs receiving colostrum from goats positive for small ruminant lentiviruses (SRLV). The second group (milk group) was established by nine lambs that received milk of these goats. Third was a control group, consisting of lambs that suckled colostrum and milk of negative mothers. Another experimental group (contact group) was formed by eight adult sheep, confined with two naturally infected goats. The groups were monitored by immunoblotting (IB), enzyme-linked immunosorbent assay (ELISA), agar gel immunodiffusion (AGID) and nested polymerase chain reaction (nPCR). All lambs that suckled colostrum and milk of infected goats and six sheep of the contact group had positive results in the nPCR, although seroconversion was detected only in three of the exposed animals, with no clinical lentiviruses manifestation, in 720 days of observation. There was a close relationship between viral sequences obtained from infected animals and the prototype CAEV-Cork. Thus, it was concluded that SRLV can be transmitted from goats to sheep, however, the degree of adaptation of the virus strain to the host species probably interferes with the infection persistence and seroconversion rate.
650 $aCross infection
650 $aDisease transmission
650 $aGoats
650 $aLambs
650 $aLentivirus
650 $aSheep
650 $aVisna maedi virus
650 $aCaprino
650 $aCordeiro
650 $aDoença animal
650 $aOvino
650 $aTransmissão de doença
653 $aArtrite-encefalite Caprina
653 $aCAEV
653 $aCaprine arthritis encephalit virus
653 $aInfecção cruzada
653 $aLVPR
653 $aMaedi-Visna
653 $aSRLV
700 1 $aPINHEIRO, R. R.
700 1 $aCOSTA, J. N.
700 1 $aLIMA, C. C. V. de
700 1 $aANDRIOLI, A.
700 1 $aAZEVEDO, D. A. A. de
700 1 $aARAÚJO, J. F.
700 1 $aSOUSA, A. L. M. de
700 1 $aPINHEIRO, D. N. S.
700 1 $aFERNANDES, F. M. C.
700 1 $aCOSTA NETO, A. O.
773 $tBrazilian Journal of Microbiology, São Paulo$gv. 46, n. 3, p. 867-874, July/Sept. 2015.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão; Embrapa Milho e Sorgo. |
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Data corrente: |
18/08/2021 |
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Data da última atualização: |
15/10/2021 |
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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: |
FERREIRA, A. C. de B.; BORIN, A. L. D. C.; LAMAS, F. M.; FERREIRA, G. B.; RESENDE, A. V. de. |
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Afiliação: |
ALEXANDRE CUNHA DE BARCELLOS FERREIRA; ANA LUIZA DIAS COELHO BORIN, CNPA; FERNANDO MENDES LAMAS, CPAO; GILVAN BARBOSA FERREIRA, CNPA; ALVARO VILELA DE RESENDE, CNPMS. |
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Título: |
Exchangeable potassium reserve in a Brazilian savanna Oxisol after nine years under different cotton production systems. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Scientia Agricola, v.79, n.4, e20200339, 2022. |
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DOI: |
http://doi.org/10.1590/1678-992X-2020-0339 |
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Idioma: |
Inglês |
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Conteúdo: |
Adequate potassium (K) fertilization is essential for agricultural production in soils of the Brazilian Savanna (Cerrado biome) due to the high demand by crops (especially cotton), likelihood of leaching losses, and the dependence on fertilizer importations. Therefore, sustainability requires improvements in the soil efficiency management. This study evaluated the influence of soil management and crop succession or rotation combinations with cotton on K dynamics and exchangeable reserves in the soil profile, and the partial balance of K after nine years of cultivation in a clayey Oxisol in the Cerrado. The soil was sampled in layers up to 100 cm depth in four cotton production systems treatments: 1) conventional soil tillage (CST) with cotton monoculture; 2) CST with annual cotton-soybean-cotton succession; 3) CST with cotton/soybean/maize rotation; and 4) no-tillage system (NTS) with cotton/soybean/maize rotation and Urochloa ruziziensis (ruzigrass) as a cover crop in the off-season after grain crops. The experiment was conducted using a randomized block design with four replications. CST with cotton monoculture favored the leaching of K surplus from fertilization. Crop rotation including ruzigrass in the NTS allowed better control of K dynamics, ensuring its circulation in the soil-plant compartments and reducing leaching. The increased organic matter (OM) in this system enlarges the storage capacity of K in the topsoil. The adoption of no-tillage crop systems integrating ruzigrass is viable to improve the efficiency of K fertilizers in cotton cultivation in highly weathered tropical soils. MenosAdequate potassium (K) fertilization is essential for agricultural production in soils of the Brazilian Savanna (Cerrado biome) due to the high demand by crops (especially cotton), likelihood of leaching losses, and the dependence on fertilizer importations. Therefore, sustainability requires improvements in the soil efficiency management. This study evaluated the influence of soil management and crop succession or rotation combinations with cotton on K dynamics and exchangeable reserves in the soil profile, and the partial balance of K after nine years of cultivation in a clayey Oxisol in the Cerrado. The soil was sampled in layers up to 100 cm depth in four cotton production systems treatments: 1) conventional soil tillage (CST) with cotton monoculture; 2) CST with annual cotton-soybean-cotton succession; 3) CST with cotton/soybean/maize rotation; and 4) no-tillage system (NTS) with cotton/soybean/maize rotation and Urochloa ruziziensis (ruzigrass) as a cover crop in the off-season after grain crops. The experiment was conducted using a randomized block design with four replications. CST with cotton monoculture favored the leaching of K surplus from fertilization. Crop rotation including ruzigrass in the NTS allowed better control of K dynamics, ensuring its circulation in the soil-plant compartments and reducing leaching. The increased organic matter (OM) in this system enlarges the storage capacity of K in the topsoil. The adoption of no-tillage crop systems integrating ... Mostrar Tudo |
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Thesagro: |
Capim Urochloa; Fertilizante Potássico; Gramínea Forrageira; Plantio Direto. |
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Thesaurus NAL: |
Long term experiments; No-tillage; Potassium fertilizers; Urochloa ruziziensis. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225479/1/Exchangeable-potassium-reserve.pdf
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Marc: |
LEADER 02513naa a2200277 a 4500
001 2133690
005 2021-10-15
008 2022 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1590/1678-992X-2020-0339$2DOI
100 1 $aFERREIRA, A. C. de B.
245 $aExchangeable potassium reserve in a Brazilian savanna Oxisol after nine years under different cotton production systems.$h[electronic resource]
260 $c2022
520 $aAdequate potassium (K) fertilization is essential for agricultural production in soils of the Brazilian Savanna (Cerrado biome) due to the high demand by crops (especially cotton), likelihood of leaching losses, and the dependence on fertilizer importations. Therefore, sustainability requires improvements in the soil efficiency management. This study evaluated the influence of soil management and crop succession or rotation combinations with cotton on K dynamics and exchangeable reserves in the soil profile, and the partial balance of K after nine years of cultivation in a clayey Oxisol in the Cerrado. The soil was sampled in layers up to 100 cm depth in four cotton production systems treatments: 1) conventional soil tillage (CST) with cotton monoculture; 2) CST with annual cotton-soybean-cotton succession; 3) CST with cotton/soybean/maize rotation; and 4) no-tillage system (NTS) with cotton/soybean/maize rotation and Urochloa ruziziensis (ruzigrass) as a cover crop in the off-season after grain crops. The experiment was conducted using a randomized block design with four replications. CST with cotton monoculture favored the leaching of K surplus from fertilization. Crop rotation including ruzigrass in the NTS allowed better control of K dynamics, ensuring its circulation in the soil-plant compartments and reducing leaching. The increased organic matter (OM) in this system enlarges the storage capacity of K in the topsoil. The adoption of no-tillage crop systems integrating ruzigrass is viable to improve the efficiency of K fertilizers in cotton cultivation in highly weathered tropical soils.
650 $aLong term experiments
650 $aNo-tillage
650 $aPotassium fertilizers
650 $aUrochloa ruziziensis
650 $aCapim Urochloa
650 $aFertilizante Potássico
650 $aGramínea Forrageira
650 $aPlantio Direto
700 1 $aBORIN, A. L. D. C.
700 1 $aLAMAS, F. M.
700 1 $aFERREIRA, G. B.
700 1 $aRESENDE, A. V. de
773 $tScientia Agricola$gv.79, n.4, e20200339, 2022.
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Registro original: |
Embrapa Algodão (CNPA) |
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