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| Registros recuperados : 12 | |
| 2. |  | AGNOLON, I. C. C.; ESTELLA, B. M.; DOMINGUES, L. F.; FANTATTO, R. R.; FIGUEIREDO, A.; CHAGAS, A. C. de S. Determinação de limites de uso de solventes e emulsificantes na diluição de extratos vegetais em testes in vitro sobre ovos e larvas de isolado resistente de Haemonchus contortus. In: CONGRESSO DE INICIAÇÃO CIENTÍFICA, 17., 2015, São Carlos, SP. Anais... São Carlos, SP: UNICEP: CENIP, 2015| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 4. | | ESTELLA, B. M.; DOMINGUES, L. F.; FANTATTO, R. R.; AGNOLON, I. C. C.; BONADIO, D. N.; OIANO NETO, J.; CHAGAS, A. C. de S. Avaliação in vitro da atividade anti-helmíntica de extratos vegetais sobre o nematoide gastrintestinal de ovinos Haemonchus contortus. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA PARA O PROGRESSO DA CIÊNCIA, 67., 2015, São Carlos, SP. Resumos....São Paulo: SBPC, 2015 C.13.1| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 5. | | DOMINGUES, L. F.; ESTELLA, B. M.; AGNOLON, I. C. C.; FANTATTO, R.; RABELO, M. D.; RODRIGUES, R.; MINHO, A. P.; CHAGAS, A. C. de S. Avaliação in vitro da atividade carrapaticida de plantas do Bioma Pampa sobre Rhipicephalus (B.) microplus de bovinos. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA PARA O PROGRESSO DA CIÊNCIA, 67., 2015, São Carlos, SP. Resumos....São Paulo: SBPC, 2015 C. 13.1| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 6. | | AGNOLON, I. C. C.; DOMINGUES, L. F.; ESTELLA, B. M.; RABELO, M. D.; BONADIO, D. N.; OIANO NETO, J.; CHAGAS, A. C. de S. Avaliação in vitro da atividade larvicida de extratos vegetais sobre o carrapato Rhipicephalus (B.) microplus. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA PARA O PROGRESSO DA CIÊNCIA, 67., 2015, São Carlos, SP. Resumos....São Paulo: SBPC, 2015 C.13.1| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 7. | | FANTATTO, R. R.; POLITI, F. A. S.; AGNOLON, I. C. C.; FIGUEIREDO, A.; MONTANARI JUNIOR, I.; CHAGAS, A. C. de S.; PIETRO, R. C. L. R. Avaliação do óleo essencial e do extrato etanólico de Achyrocline satureioides sobre larvas do carrapato Rhipicephalus (Boophilus) microplus. In: SILVA, W. T. L. da et al. (Ed.). Anais da 8ª Jornada Científica Embrapa São Carlos. Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2016. p. 105. (Embrapa Instrumentação; Documentos, 61)| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 8. | | AGNOLON, I. C. C.; FIGUEIREDO, A.; FANTATTO, R. R.; LOPES, L. G.; GIGLIOTI, R.; OLIVEIRA, M. C. de S.; ALVES, T. C.; CHAGAS, A. C. de S. Parâmetros reprodutivos de fêmeas de Rhipicephalus (Boophilus) microplus obtidas de bovinos tratados com homeopatia (resultados preliminares). In: SILVA, W. T. L. da et al. (Ed.). Anais da 8ª Jornada Científica Embrapa São Carlos. Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2016. p. 100. (Embrapa Instrumentação; Documentos, 61)| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 9. | | FANTATTO, R. R.; DOMINGUES, L. F.; AGNOLON, I. C. C.; ESTELLA, B. M.; PEREIRA, V. S. do A.; CHAGAS, A. C. de S.; BARIONI JUNIOR, W.; ALVES, T. C. Avaliação do impacto de medicamento homeopático e do mineral clinoptilolita na diarreia de bezerros de leite. In: SILVA, W. T. L. da et al. (Ed.). Anais da 8ª Jornada Científica Embrapa São Carlos. Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2016. p. 104. (Embrapa Instrumentação; Documentos, 61)| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 10. | | LOPES, L. G.; AGNOLON, I. C. C.; MAIA, A. R.; DANIEL, A. C. da S.; BARIONI JUNIOR, W.; OLIVEIRA, M. C. de S.; ESTEVES, S. N.; CHAGAS, A. C. de S. Avaliação da eficácia do óleo essencial de Mentha arvensis, e de seu majoritário mentol, no controle de Haemonchus contortus em ovelhas. In: SILVA, W. T. L. da et al. (Ed.). Anais da 8ª Jornada Científica Embrapa São Carlos. Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2016. p. 103. (Embrapa Instrumentação; Documentos, 61)| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 11. | | CRUVINEL, G. G.; MAIA, A. R.; FERRACIOLI, C. de M.; AGNOLON, I. C. C.; LOPES, L. G.; FIGUEIREDO, A.; ESTEVES, S. N.; CHAGAS, A. C. de S.; NICIURA, S. C. M. Indução da resistência ao anti-helmíntico monepantel em Haemonchus contortus (resultados preliminares). In: SILVA, W. T. L. da (Ed.) et al. Anais da 8ª Jornada Científica Embrapa São Carlos. Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2016. p. 33 (Embrapa Instrumentação. Documentos, 61)| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 12. | | FIGUEIREDO, A.; FANTATTO, R. R.; AGNOLON, I. C.; LOPES, L. G.; OLIVEIRA, P. R. de; MATHIAS, M. I. C.; ALVES, T. C.; BARIONI JUNIOR, W.; CHAGAS, A. C. de S. In vivo study of a homeopathic medicine against Rhipicephalus (Boophilus) microplus in dairy cow. Revista Brasileira de Farmacognosia, v.28, p.207-213, mar./abr. 2018. Brazilian Journal of Pharmacognosy.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 12 | |
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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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Circulação/Nível: |
A - 2 |
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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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