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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste; Embrapa Pecuária Sul. |
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Data corrente: |
20/02/2020 |
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Data da última atualização: |
21/01/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PINTO, N. B.; GASPAR, E. B.; MINHO, A. P.; DOMINGUES, R.; MOURA, M. Q. de; VARELA JUNIOR, A. S.; CAPELLA, G. A.; SANTOS, P. A. dos; COSTA, C. M. da; LEITE, F. P. L. |
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Afiliação: |
N. B. PINTO, UFPEL; EMANUELLE BALDO GASPAR, CPPSUL; ALESSANDRO PELEGRINE MINHO, CPPSE; ROBERT DOMINGUES, CPPSUL; M. Q. DE MOURA, UFPEL; A. S. VARELA JUNIOR, FURG; G. A. CAPELLA, UFPEL; P. A. DOS SANTOS, COLABORADOR CPPSUL; C. M. DA COSTA, UFPEL; F. P. LEIVAS LEITE, UFPEL. |
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Título: |
Saccharomyces cerevisiae (YT001) supplementation for the control of Haemonchus contortus and modulation of the immune response of sheep. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Beneficial Microbes, v. 11, n. 2, p. 175-181, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Studies aiming at the development and evaluation of alternative methods to minimise losses caused by the gastrointestinal nematode Haemonchus contortus are extremely important. Such research is essential, given the high morbidity rates among sheep and the significant mortality rates of lambs, allied to the low efficacy of commercial products for the control of this parasite. The purpose of this study was to evaluate the effect of the Saccharomyces cerevisiae (YT001 ? YEASTECH) on the control of H. contortus and its modulation of the immune response in experimentally infected sheep. Eighteen sheep were divided into two groups. Group 1, the control group, comprised animals infected with H. contortus and supplemented with distilled water, while Group 2, the treated group, consisted of animals infected and supplemented with S. cerevisiae (400 million cfu/day of suspension for 49 days). The following parasitological parameters were evaluated: number of eggs per gram of faeces, number of infective larvae (L3) recovered per faecal culture, and parasitic load of the abomasum. The following immunological parameters were quantified: immunoglobulin (Ig)A in the mucous secretions and serum IgG; cytokines interleukin (IL)-4, IL-5 and IL-10; number of eosinophils in the abomasal mucosa and groups of cells positive for the markers: MHCII, CD4+CD25+, CD5+CD8+, WC4, CD5+CD4+, CD8+CD11b+ and CD5+WC1 by whole blood flow cytometry. The results revealed a significant decrease (P<0.05) in the number of larvae and significantly higher serum IgG levels (P<0.05) in the group supplemented with S. cerevisiae. The supplemented animals showed significantly larger numbers of eosinophils (P<0.05), as well as more cells positive for MHCII, CD4+CD25+, CD5+CD8+ than the control animals. This study confirmed the beneficial action of S. cerevisiae on the host immune response to H. contortus, as evidenced mainly by the smaller number of L3 recovered from the faeces of sheep supplemented with S. cerevisiae. MenosAbstract Studies aiming at the development and evaluation of alternative methods to minimise losses caused by the gastrointestinal nematode Haemonchus contortus are extremely important. Such research is essential, given the high morbidity rates among sheep and the significant mortality rates of lambs, allied to the low efficacy of commercial products for the control of this parasite. The purpose of this study was to evaluate the effect of the Saccharomyces cerevisiae (YT001 ? YEASTECH) on the control of H. contortus and its modulation of the immune response in experimentally infected sheep. Eighteen sheep were divided into two groups. Group 1, the control group, comprised animals infected with H. contortus and supplemented with distilled water, while Group 2, the treated group, consisted of animals infected and supplemented with S. cerevisiae (400 million cfu/day of suspension for 49 days). The following parasitological parameters were evaluated: number of eggs per gram of faeces, number of infective larvae (L3) recovered per faecal culture, and parasitic load of the abomasum. The following immunological parameters were quantified: immunoglobulin (Ig)A in the mucous secretions and serum IgG; cytokines interleukin (IL)-4, IL-5 and IL-10; number of eosinophils in the abomasal mucosa and groups of cells positive for the markers: MHCII, CD4+CD25+, CD5+CD8+, WC4, CD5+CD4+, CD8+CD11b+ and CD5+WC1 by whole blood flow cytometry. The results revealed a significant decrease (P<0.05) i... Mostrar Tudo |
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Thesagro: |
Doença Animal; Haemonchus Contortus; Levedo; Nematóide; Ovino; Saccharomyces Cerevisiae. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02920naa a2200301 a 4500
001 2120463
005 2021-01-21
008 2020 bl uuuu u00u1 u #d
100 1 $aPINTO, N. B.
245 $aSaccharomyces cerevisiae (YT001) supplementation for the control of Haemonchus contortus and modulation of the immune response of sheep.$h[electronic resource]
260 $c2020
520 $aAbstract Studies aiming at the development and evaluation of alternative methods to minimise losses caused by the gastrointestinal nematode Haemonchus contortus are extremely important. Such research is essential, given the high morbidity rates among sheep and the significant mortality rates of lambs, allied to the low efficacy of commercial products for the control of this parasite. The purpose of this study was to evaluate the effect of the Saccharomyces cerevisiae (YT001 ? YEASTECH) on the control of H. contortus and its modulation of the immune response in experimentally infected sheep. Eighteen sheep were divided into two groups. Group 1, the control group, comprised animals infected with H. contortus and supplemented with distilled water, while Group 2, the treated group, consisted of animals infected and supplemented with S. cerevisiae (400 million cfu/day of suspension for 49 days). The following parasitological parameters were evaluated: number of eggs per gram of faeces, number of infective larvae (L3) recovered per faecal culture, and parasitic load of the abomasum. The following immunological parameters were quantified: immunoglobulin (Ig)A in the mucous secretions and serum IgG; cytokines interleukin (IL)-4, IL-5 and IL-10; number of eosinophils in the abomasal mucosa and groups of cells positive for the markers: MHCII, CD4+CD25+, CD5+CD8+, WC4, CD5+CD4+, CD8+CD11b+ and CD5+WC1 by whole blood flow cytometry. The results revealed a significant decrease (P<0.05) in the number of larvae and significantly higher serum IgG levels (P<0.05) in the group supplemented with S. cerevisiae. The supplemented animals showed significantly larger numbers of eosinophils (P<0.05), as well as more cells positive for MHCII, CD4+CD25+, CD5+CD8+ than the control animals. This study confirmed the beneficial action of S. cerevisiae on the host immune response to H. contortus, as evidenced mainly by the smaller number of L3 recovered from the faeces of sheep supplemented with S. cerevisiae.
650 $aDoença Animal
650 $aHaemonchus Contortus
650 $aLevedo
650 $aNematóide
650 $aOvino
650 $aSaccharomyces Cerevisiae
700 1 $aGASPAR, E. B.
700 1 $aMINHO, A. P.
700 1 $aDOMINGUES, R.
700 1 $aMOURA, M. Q. de
700 1 $aVARELA JUNIOR, A. S.
700 1 $aCAPELLA, G. A.
700 1 $aSANTOS, P. A. dos
700 1 $aCOSTA, C. M. da
700 1 $aLEITE, F. P. L.
773 $tBeneficial Microbes$gv. 11, n. 2, p. 175-181, 2020.
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Embrapa Pecuária Sul (CPPSUL) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
06/05/2011 |
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Data da última atualização: |
29/02/2012 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
TOLEDO, M. Z.; TOMAZ, C. A.; CAVARIANI, C.; FRANCA NETO, J. de B. |
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Afiliação: |
M. Z. TOLEDO, UNESP - Botucatu; C. A. TOMAZ, UNESP - Botucatu; C. CAVARIANI, UNESP - Botucatu; JOSE DE BARROS FRANCA NETO, CNPSO. |
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Título: |
Pre-harvest desiccation with glyphosate and physiological quality of soybean seeds. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Informativo ABRATES, Brasília, DF, v. 21, n. 1, p. 223, abr. 2011. N. Especial, ref. 298. Edition of the Abstracts: 10th Conference of the International Society for Seed Science, Costa do Sauípe, Apr. 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
Pre-harvest desiccation of soybean plants with glyphosate is routinely conducted by seed producers, although it is not recommended for it may decrease seed physiological quality and, mainly, seedling development. This work had the objective of evaluating the effects of pre-harvest desiccation of soybean plants with glyphosate on the physiological quality of seeds harvested at two different times after the application. The experimental design was the completely randomized block, with four replications. Treatments consisted of the presence and absence of plant desiccation with glyphosate at R7 stage and harvest of seeds 7 and 14 days after the application. Moisture content of seeds was evaluated at physiological maturity and right after each harvest. Mechanical damage, viability, weight of 100 seeds, protein content and accumulation of glyphosate residues in seeds were determined after each harvest. Seed physiological quality was evaluated by tests of germination, accelerated aging, electrical conductivity, seedling length and seedling dry matter. Data was submitted to variance analysis and means were compared by the Tukey test (p?0.05), as a 2 x 2 factorial (presence and absence of desiccation x harvest times). Moisture content of soybean seeds harvested after desiccation of plants was 6.87% lower than moisture of seeds produced by non-desiccated plants 7 days after the application but no effects were found after 14 days. Accumulation of glyphosate residues in soybean seeds was higher whenever pre-harvest desiccation was conducted although residues were also found in seeds produced conventionally due to drift. Seed germination was decreased by pre-harvest desiccation as a result of increased number of abnormal seedlings. Glyphosate applied as desiccant also decreased seedling length, mainly primary root length. Later harvest decreased seed quality by slightly increasing mechanical damage and, thus, electrical conductivity, as well as protein content but not in interaction with pre-harvest desiccation. MenosPre-harvest desiccation of soybean plants with glyphosate is routinely conducted by seed producers, although it is not recommended for it may decrease seed physiological quality and, mainly, seedling development. This work had the objective of evaluating the effects of pre-harvest desiccation of soybean plants with glyphosate on the physiological quality of seeds harvested at two different times after the application. The experimental design was the completely randomized block, with four replications. Treatments consisted of the presence and absence of plant desiccation with glyphosate at R7 stage and harvest of seeds 7 and 14 days after the application. Moisture content of seeds was evaluated at physiological maturity and right after each harvest. Mechanical damage, viability, weight of 100 seeds, protein content and accumulation of glyphosate residues in seeds were determined after each harvest. Seed physiological quality was evaluated by tests of germination, accelerated aging, electrical conductivity, seedling length and seedling dry matter. Data was submitted to variance analysis and means were compared by the Tukey test (p?0.05), as a 2 x 2 factorial (presence and absence of desiccation x harvest times). Moisture content of soybean seeds harvested after desiccation of plants was 6.87% lower than moisture of seeds produced by non-desiccated plants 7 days after the application but no effects were found after 14 days. Accumulation of glyphosate residues in soybean seeds w... Mostrar Tudo |
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Thesagro: |
Qualidade; Semente; Soja. |
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Thesaurus NAL: |
Seed quality; Soybeans. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02772naa a2200217 a 4500
001 1887905
005 2012-02-29
008 2011 bl uuuu u00u1 u #d
100 1 $aTOLEDO, M. Z.
245 $aPre-harvest desiccation with glyphosate and physiological quality of soybean seeds.
260 $c2011
520 $aPre-harvest desiccation of soybean plants with glyphosate is routinely conducted by seed producers, although it is not recommended for it may decrease seed physiological quality and, mainly, seedling development. This work had the objective of evaluating the effects of pre-harvest desiccation of soybean plants with glyphosate on the physiological quality of seeds harvested at two different times after the application. The experimental design was the completely randomized block, with four replications. Treatments consisted of the presence and absence of plant desiccation with glyphosate at R7 stage and harvest of seeds 7 and 14 days after the application. Moisture content of seeds was evaluated at physiological maturity and right after each harvest. Mechanical damage, viability, weight of 100 seeds, protein content and accumulation of glyphosate residues in seeds were determined after each harvest. Seed physiological quality was evaluated by tests of germination, accelerated aging, electrical conductivity, seedling length and seedling dry matter. Data was submitted to variance analysis and means were compared by the Tukey test (p?0.05), as a 2 x 2 factorial (presence and absence of desiccation x harvest times). Moisture content of soybean seeds harvested after desiccation of plants was 6.87% lower than moisture of seeds produced by non-desiccated plants 7 days after the application but no effects were found after 14 days. Accumulation of glyphosate residues in soybean seeds was higher whenever pre-harvest desiccation was conducted although residues were also found in seeds produced conventionally due to drift. Seed germination was decreased by pre-harvest desiccation as a result of increased number of abnormal seedlings. Glyphosate applied as desiccant also decreased seedling length, mainly primary root length. Later harvest decreased seed quality by slightly increasing mechanical damage and, thus, electrical conductivity, as well as protein content but not in interaction with pre-harvest desiccation.
650 $aSeed quality
650 $aSoybeans
650 $aQualidade
650 $aSemente
650 $aSoja
700 1 $aTOMAZ, C. A.
700 1 $aCAVARIANI, C.
700 1 $aFRANCA NETO, J. de B.
773 $tInformativo ABRATES, Brasília, DF$gv. 21, n. 1, p. 223, abr. 2011. N. Especial, ref. 298. Edition of the Abstracts: 10th Conference of the International Society for Seed Science, Costa do Sauípe, Apr. 2011.
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