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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
05/12/2018 |
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Data da última atualização: |
09/01/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FIGUEIREDO, A.; AGNOLON, I. C.; LOPES, L. G.; GIGLIOTI, R.; CHAGAS, A. C. de S. |
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Afiliação: |
Amanda Figueiredo, UNESP; Isabela Cabeça Agnolon, UNICEP; Louyse Gabrielli Lopes, UNICEP; Rodrigo Giglioti, UNESP; ANA CAROLINA DE SOUZA CHAGAS, CPPSE. |
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Título: |
Comparative study of hatching estimation methods of Rhipicephalus (Boophilus) microplus eggs. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Veterinary Parasitology, v.264, p.35-38, dec. 2018. |
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ISSN: |
1873-2550 |
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Idioma: |
Inglês |
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Conteúdo: |
Reproductive parameters of Rhipicephalus (Boophilus) microplus are often evaluated. They are good indicators of resistance to commercial acaricides and of plant extracts? efficacy. The objective of this study was to compare the techniques: visual estimation and quantification by sampling used in the Adult Immersion Test (AIT) to calculate the hatching rate of eggs. Engorged females collected from cattle were subjected to the AIT with plant extracts and kept in an incubator for oviposition. The egg hatching was evaluated in 210 syringes by visual estimation (%). Then, eggs and larvae were counted into samples of 100 individuals, in three repetitions by stereo microscope. Significant differences were found between the two tests (p?0.05). The egg hatching average of visual estimation was higher than the quantification by sampling, 56.8?48.0, respectively (correlation=0.85). We found that the visual assessment leads to a higher estimate of larvae in relation to eggs, because the infertile eggs can be concealed in the center of the syringe. In quantification by sampling, no statistical differences (p=0.99) were observed in the pairwise counts between the three samples (48.1 ± 26.6%, 47.8 ± 26.9%, 48.1 ± 26.5%) (correlation of repetitions=0.96). This suggests that counting one sample is sufficient and the result should not differ much, regardless of the evaluator. Regarding the cutoff point of tick resistance status (95%), both methods are reliable. This study contributes to improvement of the AIT and can stimulate researchers to choose more accurate techniques for the assessment of egg hatching. MenosReproductive parameters of Rhipicephalus (Boophilus) microplus are often evaluated. They are good indicators of resistance to commercial acaricides and of plant extracts? efficacy. The objective of this study was to compare the techniques: visual estimation and quantification by sampling used in the Adult Immersion Test (AIT) to calculate the hatching rate of eggs. Engorged females collected from cattle were subjected to the AIT with plant extracts and kept in an incubator for oviposition. The egg hatching was evaluated in 210 syringes by visual estimation (%). Then, eggs and larvae were counted into samples of 100 individuals, in three repetitions by stereo microscope. Significant differences were found between the two tests (p?0.05). The egg hatching average of visual estimation was higher than the quantification by sampling, 56.8?48.0, respectively (correlation=0.85). We found that the visual assessment leads to a higher estimate of larvae in relation to eggs, because the infertile eggs can be concealed in the center of the syringe. In quantification by sampling, no statistical differences (p=0.99) were observed in the pairwise counts between the three samples (48.1 ± 26.6%, 47.8 ± 26.9%, 48.1 ± 26.5%) (correlation of repetitions=0.96). This suggests that counting one sample is sufficient and the result should not differ much, regardless of the evaluator. Regarding the cutoff point of tick resistance status (95%), both methods are reliable. This study contributes to impro... Mostrar Tudo |
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Palavras-Chave: |
Adult immersion test (AIT); Cattle tick; Methods of larvae estimation; Quantification by sampling; Rhipicephalus (Boophilus) microplus; Visual estimation. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187834/1/ComparativeStudy.pdf
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Marc: |
LEADER 02408naa a2200253 a 4500
001 2100813
005 2019-01-09
008 2018 bl uuuu u00u1 u #d
022 $a1873-2550
100 1 $aFIGUEIREDO, A.
245 $aComparative study of hatching estimation methods of Rhipicephalus (Boophilus) microplus eggs.$h[electronic resource]
260 $c2018
520 $aReproductive parameters of Rhipicephalus (Boophilus) microplus are often evaluated. They are good indicators of resistance to commercial acaricides and of plant extracts? efficacy. The objective of this study was to compare the techniques: visual estimation and quantification by sampling used in the Adult Immersion Test (AIT) to calculate the hatching rate of eggs. Engorged females collected from cattle were subjected to the AIT with plant extracts and kept in an incubator for oviposition. The egg hatching was evaluated in 210 syringes by visual estimation (%). Then, eggs and larvae were counted into samples of 100 individuals, in three repetitions by stereo microscope. Significant differences were found between the two tests (p?0.05). The egg hatching average of visual estimation was higher than the quantification by sampling, 56.8?48.0, respectively (correlation=0.85). We found that the visual assessment leads to a higher estimate of larvae in relation to eggs, because the infertile eggs can be concealed in the center of the syringe. In quantification by sampling, no statistical differences (p=0.99) were observed in the pairwise counts between the three samples (48.1 ± 26.6%, 47.8 ± 26.9%, 48.1 ± 26.5%) (correlation of repetitions=0.96). This suggests that counting one sample is sufficient and the result should not differ much, regardless of the evaluator. Regarding the cutoff point of tick resistance status (95%), both methods are reliable. This study contributes to improvement of the AIT and can stimulate researchers to choose more accurate techniques for the assessment of egg hatching.
653 $aAdult immersion test (AIT)
653 $aCattle tick
653 $aMethods of larvae estimation
653 $aQuantification by sampling
653 $aRhipicephalus (Boophilus) microplus
653 $aVisual estimation
700 1 $aAGNOLON, I. C.
700 1 $aLOPES, L. G.
700 1 $aGIGLIOTI, R.
700 1 $aCHAGAS, A. C. de S.
773 $tVeterinary Parasitology$gv.264, p.35-38, dec. 2018.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Biblioteca |
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| Registros recuperados : 188 | |
| 8. |  | BRITO, L. G.; BARBIERI, F. da S.; GIGLIOTI, R.; SOUZA, G. C. R.; BENITEZ, F.; OLIVEIRA, M. C. de S. Babesia bovis infection in catlle from Rondonia, Brazil. In: WORLD BUATRICS CONGRESS, 26., 2010, Santiago. Abstracts...Santiago: BUATRICS, 2010.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste; Embrapa Rondônia. |
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| 9. | | OLIVEIRA, M. C. de S.; CHAGAS, A. C. de S.; FORIM, M.; SILVA, M. F.; GIGLIOTI, R.; CARVALHO, C. O. Ação de extrato de Neem sobre Rhipicephalus ( Boophilus micropulus) com azadirachtina - A quantificada por HPLC. In: REUNION ASOCIACION LATINOAMERICANA DE PRODUCCION ANIMAL, 20.; REUNION ASOCIACION PERUANA DE PRODUCCION ANINAL, 30.; CONGRESSO INTERNACIONAL DE GANDEIRA DE DOBLE PROPOSTO, 5., 2007, Cuzco, Perú. Annales... Cuzco: ALPA: APPA, 2007. 1 CD-ROM. Resumo na seguinte fonte: Archivos Latinoamericano de Produccion Animal, v. 15, (supl.), p. 489, 2007| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 10. | | PORTILHO, A. I.; GIGLIOTI, R.; OLIVEIRA, H. N. de; MARCONDES, C. R.; OKINO, C. H.; OLIVEIRA, M. C. de S. Associação entre os níveis de infecção por Babesia bovis e Babesia bigemina em amostras de sangue e carrapatos Rhipicephalus microplus colhidos em bovinos da raça Canchim. In: JORNADA CIENTÍFICA DA EMBRAPA SÃO CARLOS, 9., 2017, São Carlos, SP. Anais... São Carlos, SP: Embrapa Pecuária Sudeste; Embrapa Instrumentação, 2017. p. 37. (Embrapa Pecuária Sudeste. Documentos, 126). Editores técnicos: Alexandre Berndt, Ana Rita Araujo Nogueira, Bianca Baccili Zanotto Vigna, Juliana Gonçalves Costa, Lea Chapaval, Manuel Antonio Chagas Jacinto, Patricia Menezes Santos.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 11. | | FUNES-HUACCA, M.E.; GIGLIOTI, R.; NÉO, T. A.; CARRILHO, E.; BRITO, L. G.; OLIVEIRA, M. C. de S. ANÁLISE DO PERFIL PROTÉICO DOS PRODUTOS DE EXCREÇÃO/SECREÇÃO DE LARVAS DE Cochliomyia hominivorax. In: SIMPÓSIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PECUÁRIA SUDESTE, 2006, São Carlos, SP. Anais... São Carlos: Embrapa Pecuária Sudeste, 2006.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 13. | | OKINO, C. H.; GIGLIOTI, R.; Silva, P. C.; OLIVEIRA, H. N. de; OLIVEIRA, M. C. de S. Comparative evaluation of DNA extraction kit, matrix sample and qPCR assays for bovine babesiosis monitoring. Molecular Biology Reports, v. 45, n. 6, p. 2671-2680, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 14. | | CHAGAS, A. C. de S.; SILVA, I. C.; ESTEVES, S. N.; GIGLIOTI, R.; OLIVEIRA, M. C. de S.; BROCK, I. Caracterização do grau de resistência anti-helmíntica do isolado de haemonchus contortus do rebanho ovino Santa Inês da Embrapa Pecuária Sudeste, São Carlos, SP. In: CONGRESSO BRASILEIRO DE PARASITOLOGIA VETERINÁRIA, 16., Campo Grande. Anais... Campo Grqande: CBPV, 2010.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 15. | | CHAGAS, A. C. de S.; OLIVEIRA, M. C. de S.; FORIM, M. R.; GIGLIOTI, R.; MIGLIATO, M. A. T. Avaliação do óleo de Neem com teor padronizado de azadirachtina - A sobre as larvas de Rhipicephalus Boophilus microplus. In: CONGRESSO BRASILEIRA DE VETERINÁRIA, 34., 2007, Santos. Resumos... São Paulo, Sociedade Paulista de Medicina Veterinária, 2007. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 18. | | NEO, T. A.; BERALDO, M. de C. D.; NAKANDAKARI, E.; GIGLIOTI, R.; BRITO, L. G.; OLIVEIRA, M. C. de S. Estudo da infecção por Anaplasma marginale em búfalos leiteiros naturalmente infestados com carrapatos. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 3., 2011, São Carlos. Anais... São Carlos: Embrapa Pecuária Sudeste: Embrapa Instrumentação, 2011. p..40.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 19. | | BASSETTO, C. C.; OKINO, C. H.; GIGLIOTI, R.; OLIVEIRA, H. N. de; OLIVEIRA, M. C. de S. Levels of antibodies against babesia bigemina and babesia bovis in cows and calves by elisa using recombinant antigens. In: CONGRESSO BRASILEIRO DE PARASITOLOGIA VETERINÁRIA, 20., 2018, Londrina, PR. Anais...Londrina, PR: CBPV, 2018. p. 255| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 188 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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