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Registro Completo |
Biblioteca(s): |
Embrapa Amapá. |
Data corrente: |
11/11/2022 |
Data da última atualização: |
18/11/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
NEGREIROS, L. P.; SOUZA, E. X.; LIMA, T. A.; TAVARES-DIAS, M. |
Afiliação: |
LUCIANO PEREIRA NEGREIROS, INSTITUTO FEDERAL DO ACRE; ELIANE XAVIER SOUZA, INSTITUTO FEDERAL DO ACRE; TIAGO ARAÚJO LIMA, INSTITUTO FEDERAL DO ACRE; MARCOS TAVARES DIAS, CPAF-AP. |
Título: |
Albendazole is effective for controlling monogenean parasites of the gills of Piaractus brachypomus (Serrasalmidae) and Megaleporinus macrocephalus (Anostomidae). |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Revista Brasileira de Parasitologia Veterinária, v. 31, n. 4, e010322, set. 2022. |
ISSN: |
1984-2961 |
DOI: |
https://doi.org/10.1590/S1984-29612022057 |
Idioma: |
Inglês |
Conteúdo: |
Monogenean infestations can cause high mortality in farmed fish and therefore significant economic losses. The present study investigated the efficacy of albendazole in therapeutic baths against monogeneans of Piaractus brachypomus Cuvier, 1818 and Megaleporinus macrocephalus (Garavello & Britski, 1988). For both fish, a 24 hours therapeutic bath with albendazole concentrations of 150, 300 and 500 mg/L were tested against monogeneans from the gills. The baths had an efficacy from 61.4 ± 32.9 (95%CI=64.5) against monogeneans of P. brachypomus, and from 95.4 ± 5.6 (95%CI=10.9) against monogeneans of M. macrocephalus. In P. brachypomus, the hepatosomatic index (HSI) in fish exposed to 150 mg/L of albendazole was higher than in fish exposed to 300 mg/L. The splenosomatic index (SSI) values in fish exposed to 150 mg/L of albendazole were lower than in fish exposed to 300 mg/L. In M. macrocephalus, the HSI and SSI values decreased in treatments with 150, 300 and 500 mg/L of albendazole to control and treat infestations by monogeneans. For M. macrocephalus, 150 mg/L of albendazole can be used to control and treat infestations by monogeneans, while for P. brachypomus 500 mg/L of albendazole can be used in a 24 hours bath. |
Thesagro: |
Medicamento; Parasitose. |
Categoria do assunto: |
S Ciências Biológicas |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148210/1/CPAF-AP-2022-Albendazole-is-effective-for-controlling-monogenean.pdf
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Marc: |
LEADER 01963naa a2200205 a 4500 001 2148210 005 2022-11-18 008 2022 bl uuuu u00u1 u #d 022 $a1984-2961 024 7 $ahttps://doi.org/10.1590/S1984-29612022057$2DOI 100 1 $aNEGREIROS, L. P. 245 $aAlbendazole is effective for controlling monogenean parasites of the gills of Piaractus brachypomus (Serrasalmidae) and Megaleporinus macrocephalus (Anostomidae).$h[electronic resource] 260 $c2022 520 $aMonogenean infestations can cause high mortality in farmed fish and therefore significant economic losses. The present study investigated the efficacy of albendazole in therapeutic baths against monogeneans of Piaractus brachypomus Cuvier, 1818 and Megaleporinus macrocephalus (Garavello & Britski, 1988). For both fish, a 24 hours therapeutic bath with albendazole concentrations of 150, 300 and 500 mg/L were tested against monogeneans from the gills. The baths had an efficacy from 61.4 ± 32.9 (95%CI=64.5) against monogeneans of P. brachypomus, and from 95.4 ± 5.6 (95%CI=10.9) against monogeneans of M. macrocephalus. In P. brachypomus, the hepatosomatic index (HSI) in fish exposed to 150 mg/L of albendazole was higher than in fish exposed to 300 mg/L. The splenosomatic index (SSI) values in fish exposed to 150 mg/L of albendazole were lower than in fish exposed to 300 mg/L. In M. macrocephalus, the HSI and SSI values decreased in treatments with 150, 300 and 500 mg/L of albendazole to control and treat infestations by monogeneans. For M. macrocephalus, 150 mg/L of albendazole can be used to control and treat infestations by monogeneans, while for P. brachypomus 500 mg/L of albendazole can be used in a 24 hours bath. 650 $aMedicamento 650 $aParasitose 700 1 $aSOUZA, E. X. 700 1 $aLIMA, T. A. 700 1 $aTAVARES-DIAS, M. 773 $tRevista Brasileira de Parasitologia Veterinária$gv. 31, n. 4, e010322, set. 2022.
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Milho e Sorgo. |
Data corrente: |
17/12/2021 |
Data da última atualização: |
21/12/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
VIDAL, A. K. F.; DAHER, R. F.; ANDRADE, E. K. V. de; FREITAS, R. S.; STIDA, W. F.; AMARAL JÚNIOR, A. T. do; MENEZES, B. R. da S.; PEREIRA, A. V.; SILVA, V. B. da; TARDIN, F. D.; OLIVEIRA, L. J. da S. de. |
Afiliação: |
Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidade Estadual do Norte Fluminense Darcy Ribeiro; Universidade Federal Rural do Rio de Janeiro; ANTONIO VANDER PEREIRA, CNPGL; Universidade Estadual do Norte Fluminense Darcy Ribeiro; FLAVIO DESSAUNE TARDIN, CNPMS; Universidade Estadual do Norte Fluminense Darcy Ribeiro. |
Título: |
Estimate of genetic diversity in germplasm of elephant grass accessions in Brazil using the Gower algorithm. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Genetics and Molecular Research, v. 20, n. 4, gmr18944, 2021. |
DOI: |
http://dx.doi.org/10.4238/gmr18944 |
Idioma: |
Inglês |
Conteúdo: |
Management of variability in germplasm banks is essential for genetic improvement, so that the breeder can estimate the genetic similarity between cultivars, as well as maintain genetic diversity in breeding programs. Elephant grass is a forage crop plant native to Africa of great socio-economic and environmental importance; it can be used for animal feed and for bioenergy production. Understanding the genetic variability of elephant grass is essential for breeding programs. In this context, we examined the genetic divergence of elephant grass accessions using the Gower algorithm. The experiment was conducted under field conditions in the municipality of Campos dos Goytacazes-RJ, Brazil. All 85 elephant grass accessions belonging to the Active Elephant Grass Germplasm Bank of Embrapa Gado de Leite were included. These genotypes are commercial varieties from various countries. They were evaluated for morphoagronomic, morphological and phenological characteristics. The experimental design was randomized blocks with two repetitions. The plots were composed of 5.5-meter rows, with 2.0-meter spacing between the planting rows, totaling 11.0 m2 . The useful area was a sample in the center of the plot. We generated an illustrative dendrogram, obtained by the UPGMA method and the Tocher clustering, based on the Gower algorithm. Data were examined by means of the GENES statistical programs and the R program. According to the dissimilarity matrices based on the Gower algorithm, the genetic distances varied between 0.08 and 0.56, and the mean distance of the 85 evaluated accessions was 0.25, suggesting, consequently, that there is wide genetic variability between the accessions. Of the 85 genotypes, seven presented genetic distances smaller than 0.1, being indicative of duplicates in the germplasm bank, which could be eliminated without risk of loss of genetic variability. MenosManagement of variability in germplasm banks is essential for genetic improvement, so that the breeder can estimate the genetic similarity between cultivars, as well as maintain genetic diversity in breeding programs. Elephant grass is a forage crop plant native to Africa of great socio-economic and environmental importance; it can be used for animal feed and for bioenergy production. Understanding the genetic variability of elephant grass is essential for breeding programs. In this context, we examined the genetic divergence of elephant grass accessions using the Gower algorithm. The experiment was conducted under field conditions in the municipality of Campos dos Goytacazes-RJ, Brazil. All 85 elephant grass accessions belonging to the Active Elephant Grass Germplasm Bank of Embrapa Gado de Leite were included. These genotypes are commercial varieties from various countries. They were evaluated for morphoagronomic, morphological and phenological characteristics. The experimental design was randomized blocks with two repetitions. The plots were composed of 5.5-meter rows, with 2.0-meter spacing between the planting rows, totaling 11.0 m2 . The useful area was a sample in the center of the plot. We generated an illustrative dendrogram, obtained by the UPGMA method and the Tocher clustering, based on the Gower algorithm. Data were examined by means of the GENES statistical programs and the R program. According to the dissimilarity matrices based on the Gower algorithm, the gen... Mostrar Tudo |
Palavras-Chave: |
Análise de agrupamento; Cenchrus purpureus; Clustering analysis; Diversidade genética. |
Thesagro: |
Capim Elefante; Germoplasma; Variação Genética. |
Thesaurus NAL: |
Germplasm; Multivariate analysis. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/229453/1/Estimate-genetic.pdf
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Marc: |
LEADER 03014naa a2200361 a 4500 001 2138016 005 2021-12-21 008 2021 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.4238/gmr18944$2DOI 100 1 $aVIDAL, A. K. F. 245 $aEstimate of genetic diversity in germplasm of elephant grass accessions in Brazil using the Gower algorithm.$h[electronic resource] 260 $c2021 520 $aManagement of variability in germplasm banks is essential for genetic improvement, so that the breeder can estimate the genetic similarity between cultivars, as well as maintain genetic diversity in breeding programs. Elephant grass is a forage crop plant native to Africa of great socio-economic and environmental importance; it can be used for animal feed and for bioenergy production. Understanding the genetic variability of elephant grass is essential for breeding programs. In this context, we examined the genetic divergence of elephant grass accessions using the Gower algorithm. The experiment was conducted under field conditions in the municipality of Campos dos Goytacazes-RJ, Brazil. All 85 elephant grass accessions belonging to the Active Elephant Grass Germplasm Bank of Embrapa Gado de Leite were included. These genotypes are commercial varieties from various countries. They were evaluated for morphoagronomic, morphological and phenological characteristics. The experimental design was randomized blocks with two repetitions. The plots were composed of 5.5-meter rows, with 2.0-meter spacing between the planting rows, totaling 11.0 m2 . The useful area was a sample in the center of the plot. We generated an illustrative dendrogram, obtained by the UPGMA method and the Tocher clustering, based on the Gower algorithm. Data were examined by means of the GENES statistical programs and the R program. According to the dissimilarity matrices based on the Gower algorithm, the genetic distances varied between 0.08 and 0.56, and the mean distance of the 85 evaluated accessions was 0.25, suggesting, consequently, that there is wide genetic variability between the accessions. Of the 85 genotypes, seven presented genetic distances smaller than 0.1, being indicative of duplicates in the germplasm bank, which could be eliminated without risk of loss of genetic variability. 650 $aGermplasm 650 $aMultivariate analysis 650 $aCapim Elefante 650 $aGermoplasma 650 $aVariação Genética 653 $aAnálise de agrupamento 653 $aCenchrus purpureus 653 $aClustering analysis 653 $aDiversidade genética 700 1 $aDAHER, R. F. 700 1 $aANDRADE, E. K. V. de 700 1 $aFREITAS, R. S. 700 1 $aSTIDA, W. F. 700 1 $aAMARAL JÚNIOR, A. T. do 700 1 $aMENEZES, B. R. da S. 700 1 $aPEREIRA, A. V. 700 1 $aSILVA, V. B. da 700 1 $aTARDIN, F. D. 700 1 $aOLIVEIRA, L. J. da S. de 773 $tGenetics and Molecular Research$gv. 20, n. 4, gmr18944, 2021.
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Embrapa Gado de Leite (CNPGL) |
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