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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
17/11/2020 |
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Data da última atualização: |
17/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GIGLIOTI, R.; OLIVEIRA, H. N. de; GUTMANIS, G.; LUCIANI, G. F.; AZEVEDO, B. T.; FIORIN, C. F. de C.; ANDRADE, M. F. de; SILVA, M. A. F.; VERCESI FILHO, A. E.; KATIKI, L. M.; OKINO, C. H.; OLIVEIRA, M. C. de S.; VERÍSSIMO, C. J. |
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Afiliação: |
Rodrigo Giglioti, IZ; Henrique Nunes de Oliveira, UNESP; Gunta Gutmanis, IZ; Guilherme Favero Luciani, IZ; Bianca Tainá Azevedo, IZ; Cristiane Fernandes de Carvalho Fiorin, IZ; Mariana Fogale de Andrade, IZ; Marco Antônio Faria Silva, IZ; Anibal Eugênio Vercesi Filho, IZ; Luciana Morita Katiki, IZ; CINTIA HIROMI OKINO, CPPSE; MARCIA CRISTINA DE SENA OLIVEIRA, CPPSE; Cecília José Veríssimo, IZ. |
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Título: |
Correlations and repeatability between Babesia spp. infection levels using two dairy cattle breeding systems. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Experimental and Applied Acarology, v. 81, p. 599-607, jul. 2020. |
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DOI: |
https://doi.org/10.1007/s10493-020-00515-0 |
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Idioma: |
Inglês |
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Conteúdo: |
Babesia bovis and Babesia bigemina are tick-transmitted piroplasms that cause severe damage to the livestock industry in tropical regions of the world. Recent studies demonstrated differences in infection levels of these haemoparasites among bovine breeds and variation between individual cows regarding resistance to these diseases. This study aimed to estimate the repeatability and correlations between B. bovis and B. bigemina using two cattle breeding systems, an individual system (IS) and a collective paddock system (CPS). All animals were Holstein breed, and the levels of B. bovis and B. bigemina in blood samples were estimated by quantitative polymerase chain reaction (qPCR). The estimated correlations for the B. bigemina and B. bovis DNA copy number for IS and CPS were moderate and high, respectively, whereas repeatability estimates for both systems and both Babesia species were moderate. Although we cannot infer that the type of rearing system directly influenced the correlation and repeatability coefficients, it appears that the bovine parasitemia burden may be dependent on (or determine) the parasitemia burden on ticks because the bovines remained in the same place for a longer time in both systems. Thus, the babesiosis infection levels of the ticks may have been uniform, a phenomenon that also ensures greater uniformity in cattle infection. This factor may have favored the occurrence of infected ticks leading to higher repeatability estimates and correlations. Our study confirms high variability in resistance/susceptibility between breeds, and the high correlations found may be linked to this characteristic and the most intensive breeding type of dairy cattle. Besides, under the present study conditions, the estimated correlations suggest that measuring an infection level of one Babesia species can predict the level of infection of the other. MenosBabesia bovis and Babesia bigemina are tick-transmitted piroplasms that cause severe damage to the livestock industry in tropical regions of the world. Recent studies demonstrated differences in infection levels of these haemoparasites among bovine breeds and variation between individual cows regarding resistance to these diseases. This study aimed to estimate the repeatability and correlations between B. bovis and B. bigemina using two cattle breeding systems, an individual system (IS) and a collective paddock system (CPS). All animals were Holstein breed, and the levels of B. bovis and B. bigemina in blood samples were estimated by quantitative polymerase chain reaction (qPCR). The estimated correlations for the B. bigemina and B. bovis DNA copy number for IS and CPS were moderate and high, respectively, whereas repeatability estimates for both systems and both Babesia species were moderate. Although we cannot infer that the type of rearing system directly influenced the correlation and repeatability coefficients, it appears that the bovine parasitemia burden may be dependent on (or determine) the parasitemia burden on ticks because the bovines remained in the same place for a longer time in both systems. Thus, the babesiosis infection levels of the ticks may have been uniform, a phenomenon that also ensures greater uniformity in cattle infection. This factor may have favored the occurrence of infected ticks leading to higher repeatability estimates and correlations. Our s... Mostrar Tudo |
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Palavras-Chave: |
Bovine babesiosis; Breeding system. |
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Thesaurus Nal: |
Correlation; Infection; Repeatability. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02913naa a2200337 a 4500
001 2126672
005 2020-11-17
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10493-020-00515-0$2DOI
100 1 $aGIGLIOTI, R.
245 $aCorrelations and repeatability between Babesia spp. infection levels using two dairy cattle breeding systems.$h[electronic resource]
260 $c2020
520 $aBabesia bovis and Babesia bigemina are tick-transmitted piroplasms that cause severe damage to the livestock industry in tropical regions of the world. Recent studies demonstrated differences in infection levels of these haemoparasites among bovine breeds and variation between individual cows regarding resistance to these diseases. This study aimed to estimate the repeatability and correlations between B. bovis and B. bigemina using two cattle breeding systems, an individual system (IS) and a collective paddock system (CPS). All animals were Holstein breed, and the levels of B. bovis and B. bigemina in blood samples were estimated by quantitative polymerase chain reaction (qPCR). The estimated correlations for the B. bigemina and B. bovis DNA copy number for IS and CPS were moderate and high, respectively, whereas repeatability estimates for both systems and both Babesia species were moderate. Although we cannot infer that the type of rearing system directly influenced the correlation and repeatability coefficients, it appears that the bovine parasitemia burden may be dependent on (or determine) the parasitemia burden on ticks because the bovines remained in the same place for a longer time in both systems. Thus, the babesiosis infection levels of the ticks may have been uniform, a phenomenon that also ensures greater uniformity in cattle infection. This factor may have favored the occurrence of infected ticks leading to higher repeatability estimates and correlations. Our study confirms high variability in resistance/susceptibility between breeds, and the high correlations found may be linked to this characteristic and the most intensive breeding type of dairy cattle. Besides, under the present study conditions, the estimated correlations suggest that measuring an infection level of one Babesia species can predict the level of infection of the other.
650 $aCorrelation
650 $aInfection
650 $aRepeatability
653 $aBovine babesiosis
653 $aBreeding system
700 1 $aOLIVEIRA, H. N. de
700 1 $aGUTMANIS, G.
700 1 $aLUCIANI, G. F.
700 1 $aAZEVEDO, B. T.
700 1 $aFIORIN, C. F. de C.
700 1 $aANDRADE, M. F. de
700 1 $aSILVA, M. A. F.
700 1 $aVERCESI FILHO, A. E.
700 1 $aKATIKI, L. M.
700 1 $aOKINO, C. H.
700 1 $aOLIVEIRA, M. C. de S.
700 1 $aVERÍSSIMO, C. J.
773 $tExperimental and Applied Acarology$gv. 81, p. 599-607, jul. 2020.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
27/07/1998 |
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Data da última atualização: |
25/07/2019 |
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Autoria: |
SPEHAR, C. R. |
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Afiliação: |
CARLOS ROBERTO SPEHAR, CPAC. |
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Título: |
Comparison between hill and row plots methods on selection of soybeans for aluminium tolerance in a brazilian savannah (cerrado) acid soil. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 33, n. 6, p. 899-904, jun. 1998 |
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Idioma: |
Inglês |
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Notas: |
Titulo em português: Comparação de parcelas em covas e em sulcos na seleção de soja tolerante ao alumínio em um solo ácido de cerrado. |
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Conteúdo: |
The objective of this work was to compare two different methods concerning their efficiency in a selection of soybean genotypes for Al tolerance. Selection for aluminium tolerance is necessary to the full adaptation of the soybean crop in the acid soils of the Brazilian Savannahs (Cerrados). Field techniques, however, are laborious and time consuming. The present results indicate that hill plot method is as efficient as row plot method in the identification of Al-tolerant genotypes. Similar efficiency observed in low Al environment. Hill plot method can be applied in genetic studies and in breeding programmes for crop improvement, using less effort and time than the row plots. |
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Palavras-Chave: |
Adaptacao da soja; Breeding method; Estudo genetico; Genetic study; Genotipo tolerante; Soybean adaptation; Tolerant genotype. |
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Thesagro: |
Glycine Max; Método de Melhoramento. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/92315/1/pab143-96.pdf
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Marc: |
LEADER 01590naa a2200241 a 4500
001 1087614
005 2019-07-25
008 1998 bl uuuu u00u1 u #d
100 1 $aSPEHAR, C. R.
245 $aComparison between hill and row plots methods on selection of soybeans for aluminium tolerance in a brazilian savannah (cerrado) acid soil.
260 $c1998
500 $aTitulo em português: Comparação de parcelas em covas e em sulcos na seleção de soja tolerante ao alumínio em um solo ácido de cerrado.
520 $aThe objective of this work was to compare two different methods concerning their efficiency in a selection of soybean genotypes for Al tolerance. Selection for aluminium tolerance is necessary to the full adaptation of the soybean crop in the acid soils of the Brazilian Savannahs (Cerrados). Field techniques, however, are laborious and time consuming. The present results indicate that hill plot method is as efficient as row plot method in the identification of Al-tolerant genotypes. Similar efficiency observed in low Al environment. Hill plot method can be applied in genetic studies and in breeding programmes for crop improvement, using less effort and time than the row plots.
650 $aGlycine Max
650 $aMétodo de Melhoramento
653 $aAdaptacao da soja
653 $aBreeding method
653 $aEstudo genetico
653 $aGenetic study
653 $aGenotipo tolerante
653 $aSoybean adaptation
653 $aTolerant genotype
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 33, n. 6, p. 899-904, jun. 1998
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Embrapa Unidades Centrais (AI-SEDE) |
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