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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
15/08/2016 |
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Data da última atualização: |
15/08/2016 |
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Autoria: |
CARVALHO, D.; MORAES, L. B. de; CHITOLINA, G. Z.; HERPICH, J. I.; OSÓRIO, F. S.; FALLAVENA, L. C. B.; MORAES, H. L. de S.; SALLE, C. T. P. |
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Afiliação: |
DAIANE CARVALHO, CDPA/UFRGS; LUCAS BRUNELLI DE MORAES, IPVDF/FEPAGRO; GABRIELA ZOTTIS CHITOLINA, CDPA/UFRGS; JULIANA INÊS HERPICH, CDPA/UFRGS; FERNANDO SANTOS OSÓRIO, ICMC/USP; LUIZ CESAR BELLO FALLAVENA, ULBRA; HAMILTON LUIZ DE SOUZA MORAES, CDPA/UFRGS; CARLOS TADEU PIPPI SALLE, CDPA/UFRGS. |
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Título: |
Evaluation of thymic lymphocyte loss of broiler using Digital Analysis of the Lymphoid Depletion System (ADDL). |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Brasília, DF, v.36, n. 7, p. 652-656, jul. 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
The thymus is a lymphoid organ and usually evaluated for the degree of lymphocyte loss with subjective histological techniques. This study aimed to adapt and to apply of the digital analysis of the lymphoid depletion system (ADDL) in the thymus in order to obtain a more accurate analysis. Glucocorticoid was used to induce immunosuppression in 55 broilers at 21 days of age; other 15 broilers were the control group. After euthanasia of the broilers, postmortem examination was made. Both thymic chains were collected and six lobes were selected for histological examination of the degree of lymphocyte depletion (scores 1 to 5) and for submission to all stages of processing by the ADDL system. The artificial constructed neural networks (ANN) obtained 94.03% of correct classifications. In conclusion, it was possible to adopt objective criteria to evaluate thymic lymphoid depletion with the ADDL system. |
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Palavras-Chave: |
Análise de imagem; Ave; Depleção linfóide; Imunidade celular; Lymphoid depletion; Rede neural artificial. |
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Thesaurus Nal: |
Cell-mediated immunity; Image analysis; Neural networks; Poultry. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/146407/1/Evaluation-of-thymic.pdf
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Marc: |
LEADER 01883naa a2200325 a 4500
001 2050913
005 2016-08-15
008 2016 bl uuuu u00u1 u #d
100 1 $aCARVALHO, D.
245 $aEvaluation of thymic lymphocyte loss of broiler using Digital Analysis of the Lymphoid Depletion System (ADDL).
260 $c2016
520 $aThe thymus is a lymphoid organ and usually evaluated for the degree of lymphocyte loss with subjective histological techniques. This study aimed to adapt and to apply of the digital analysis of the lymphoid depletion system (ADDL) in the thymus in order to obtain a more accurate analysis. Glucocorticoid was used to induce immunosuppression in 55 broilers at 21 days of age; other 15 broilers were the control group. After euthanasia of the broilers, postmortem examination was made. Both thymic chains were collected and six lobes were selected for histological examination of the degree of lymphocyte depletion (scores 1 to 5) and for submission to all stages of processing by the ADDL system. The artificial constructed neural networks (ANN) obtained 94.03% of correct classifications. In conclusion, it was possible to adopt objective criteria to evaluate thymic lymphoid depletion with the ADDL system.
650 $aCell-mediated immunity
650 $aImage analysis
650 $aNeural networks
650 $aPoultry
653 $aAnálise de imagem
653 $aAve
653 $aDepleção linfóide
653 $aImunidade celular
653 $aLymphoid depletion
653 $aRede neural artificial
700 1 $aMORAES, L. B. de
700 1 $aCHITOLINA, G. Z.
700 1 $aHERPICH, J. I.
700 1 $aOSÓRIO, F. S.
700 1 $aFALLAVENA, L. C. B.
700 1 $aMORAES, H. L. de S.
700 1 $aSALLE, C. T. P.
773 $tPesquisa Veterinária Brasileira, Brasília, DF$gv.36, n. 7, p. 652-656, jul. 2016.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
19/08/2021 |
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Data da última atualização: |
25/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
SAMPAIO, F. G.; ARAUJO, C. A. S. de; DALLAGO, B. S. L.; STECH, J. L.; LORENZZETTI, J. A.; ALCÂNTARA, E.; LOSEKANN, M. E.; MARIN, D. B.; LEÃO, J. A. D.; BUENO, G. W. |
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Afiliação: |
FERNANDA GARCIA SAMPAIO, CNPMA; CARLOS ALBERTO SAMPAIO DE ARAUJO, Université du Québec; BRUNO STÉFANO LIMA DALLAGO, UnB; JOSÉ LUIZ STECH, INPE; JOÃO ANTÔNIO LORENZZETTI, INPE; ENNER ALCÂNTARA; MARCOS ELISEU LOSEKANN, CNPMA; DIEGO BEDIN MARIN, UFLA; JOAQUIM ANTÔNIO DIONÍSIO LEÃO, INPE; GUILHERME WOLFF BUENO, CAUNESP. |
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Título: |
Unveiling low-to-high-frequency data sampling caveats for aquaculture environmental monitoring and management. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Aquaculture Reports, v. 20, article 100764, 2021. |
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ISSN: |
2352-5134 |
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DOI: |
https://doi.org/10.1016/j.aqrep.2021.100764 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Aiming at the sustainability of aquaculture production, producers should adopt tools and protocols for environmental monitoring and management of these enterprises. There are currently issues concerning the efficacy of data collection procedures and limnological sampling at low frequency, which is widely used by managers and aquaculture surveillance agencies. In this context, the present study evaluated the effectiveness of high-frequency (HF) and low-frequency (LF) limnological monitoring. For the HF, autonomous data collection platforms (ADCP) were installed in a tropical reservoir, four ADCP in areas with fish production (WFP), and one ADCP in an area free of fish production (FFP, control). For both sampling methods, the temperature (Temp), pH, dissolved oxygen (DO), turbidity (Tbt), electrical conductivity (EC), and chlorophyll-a (Chl-a) were sampled at a depth of 1.5 m from the water surface. While the HF used a multiparameter probe, recording each parameter every 10 min, the LF method consisted of monthly data acquisitions of the same settings using water sampling techniques for further measurement in the laboratory. The comparison of the sampling frequency and methods revealed different profiles for all measured parameters during the monitored period. The average values of the daily amplitude of variation differed between the two monitoring strategies for water temperature, pH, DO, Tbt, and Chl-a. Comparison of the results showed that the HF limnological monitoring allowed us to create a more accurate variation profile of the water quality variables measured. The ADCP is a useful strategy that can be used to capture the influences of fish production and to bring essential water quality changes for fish management. The evaluations with LF did not demonstrate the natural variability of the measured parameters, being an ineffective tool for environmental monitoring of fish production. MenosAbstract: Aiming at the sustainability of aquaculture production, producers should adopt tools and protocols for environmental monitoring and management of these enterprises. There are currently issues concerning the efficacy of data collection procedures and limnological sampling at low frequency, which is widely used by managers and aquaculture surveillance agencies. In this context, the present study evaluated the effectiveness of high-frequency (HF) and low-frequency (LF) limnological monitoring. For the HF, autonomous data collection platforms (ADCP) were installed in a tropical reservoir, four ADCP in areas with fish production (WFP), and one ADCP in an area free of fish production (FFP, control). For both sampling methods, the temperature (Temp), pH, dissolved oxygen (DO), turbidity (Tbt), electrical conductivity (EC), and chlorophyll-a (Chl-a) were sampled at a depth of 1.5 m from the water surface. While the HF used a multiparameter probe, recording each parameter every 10 min, the LF method consisted of monthly data acquisitions of the same settings using water sampling techniques for further measurement in the laboratory. The comparison of the sampling frequency and methods revealed different profiles for all measured parameters during the monitored period. The average values of the daily amplitude of variation differed between the two monitoring strategies for water temperature, pH, DO, Tbt, and Chl-a. Comparison of the results showed that the HF limnological mon... Mostrar Tudo |
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Palavras-Chave: |
High-frequency monitoring; Monitoramento de alta frequência. |
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Thesagro: |
Aquicultura; Limnologia; Qualidade da Água. |
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Thesaurus NAL: |
Aquaculture; Environmental monitoring; Limnology; Water quality analysis. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 03032naa a2200361 a 4500
001 2133734
005 2021-08-25
008 2021 bl uuuu u00u1 u #d
022 $a2352-5134
024 7 $ahttps://doi.org/10.1016/j.aqrep.2021.100764$2DOI
100 1 $aSAMPAIO, F. G.
245 $aUnveiling low-to-high-frequency data sampling caveats for aquaculture environmental monitoring and management.$h[electronic resource]
260 $c2021
520 $aAbstract: Aiming at the sustainability of aquaculture production, producers should adopt tools and protocols for environmental monitoring and management of these enterprises. There are currently issues concerning the efficacy of data collection procedures and limnological sampling at low frequency, which is widely used by managers and aquaculture surveillance agencies. In this context, the present study evaluated the effectiveness of high-frequency (HF) and low-frequency (LF) limnological monitoring. For the HF, autonomous data collection platforms (ADCP) were installed in a tropical reservoir, four ADCP in areas with fish production (WFP), and one ADCP in an area free of fish production (FFP, control). For both sampling methods, the temperature (Temp), pH, dissolved oxygen (DO), turbidity (Tbt), electrical conductivity (EC), and chlorophyll-a (Chl-a) were sampled at a depth of 1.5 m from the water surface. While the HF used a multiparameter probe, recording each parameter every 10 min, the LF method consisted of monthly data acquisitions of the same settings using water sampling techniques for further measurement in the laboratory. The comparison of the sampling frequency and methods revealed different profiles for all measured parameters during the monitored period. The average values of the daily amplitude of variation differed between the two monitoring strategies for water temperature, pH, DO, Tbt, and Chl-a. Comparison of the results showed that the HF limnological monitoring allowed us to create a more accurate variation profile of the water quality variables measured. The ADCP is a useful strategy that can be used to capture the influences of fish production and to bring essential water quality changes for fish management. The evaluations with LF did not demonstrate the natural variability of the measured parameters, being an ineffective tool for environmental monitoring of fish production.
650 $aAquaculture
650 $aEnvironmental monitoring
650 $aLimnology
650 $aWater quality analysis
650 $aAquicultura
650 $aLimnologia
650 $aQualidade da Água
653 $aHigh-frequency monitoring
653 $aMonitoramento de alta frequência
700 1 $aARAUJO, C. A. S. de
700 1 $aDALLAGO, B. S. L.
700 1 $aSTECH, J. L.
700 1 $aLORENZZETTI, J. A.
700 1 $aALCÂNTARA, E.
700 1 $aLOSEKANN, M. E.
700 1 $aMARIN, D. B.
700 1 $aLEÃO, J. A. D.
700 1 $aBUENO, G. W.
773 $tAquaculture Reports$gv. 20, article 100764, 2021.
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