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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
25/05/2015 |
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Data da última atualização: |
04/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AMORIM, L. S.; KAWAMOTO, T. S.; TORRES, C. A. A.; GUIMARÃES, J. D.; SILVA FILHO, J. M.; OLIVEIRA, M. M. N. F.; CARVALHO, G. R.; FONSECA, J. F. da. |
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Afiliação: |
Universidade Federal de Viçosa (UFV) - Viçosa, MG, Brasil; UFV - Viçosa, MG, Brasil; UFV - Viçosa, MG, Brasil; UFV - Viçosa, MG, Brasil; Escola de Medicina Veterinária - UFMG - Belo Horizonte, MG, Brasil; Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM) - Diamantina, MG, Brasil; UFV - Viçosa, MG, Brasil; JEFERSON FERREIRA DA FONSECA, CNPC. |
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Título: |
Influência do Hormônio do Crescimento na concentração de testosterona plasmática e nas características seminais de touros jovens e adultos da raça Nelore. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 67, n. 1, p. 7-14, Fev. 2015. |
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DOI: |
http://dx.doi.org/10.1590/1678-7189 |
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Idioma: |
Português |
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Conteúdo: |
Resumo: Estudou-se o efeito do Hormônio do Crescimento bovino (bGH) sobre os parâmetros seminais e a concentração sérica de testosterona de touros da raça Nelore. Dezesseis touros foram distribuídos em um delineamento fatorial 2 x 2 (duas idades e dois níveis de r-bST), com quatro animais em cada tratamento. As aplicações de r-bST foram realizadas a cada 14 dias, totalizando nove aplicações por animal, em um período experimental de 120 dias. As coletas de sêmen foram realizadas a cada 15 dias e, para determinar as concentrações de testosterona, foram realizadas coletas de sangue a cada quatro horas, num total de 24 horas, e a cada 30 dias a partir da primeira aplicação de r-bST. O sêmen dos touros adultos tratados com r-bST apresentaram maior motilidade e vigor (P<0,05) em relação aos animais controles (79,70±11,56% vs 64,06±23,65%) e (3,80±0,88 vs 2,92±1,25), respectivamente; entretanto, as demais características seminais não foram influenciadas (P>0,05) pelo tratamento com r-bST. Os aspectos físicos do sêmen dos touros jovens não foram afetados (P>0,05) pelo tratamento com r-bST. Entretanto o tratamento com r-bST diminuiu os defeitos morfológicos menores (delgado, gigante normal, pequeno normal, globoso, cabeça isolada normal, abaxial, cauda dobrada e enrolada levemente e gota distal) em relação aos jovens não tratados (P<0,05). As concentrações séricas de testosterona foram influenciadas (P<0,05) pelo tratamento, aos 120 dias após a primeira aplicação do r-bST, e apresentaram tendência de três picos no período de 24 horas. [Influence of Growth Hormone on plasma testosterone concentration and seminal characteristics of young and adult Nellore bulls]. Abstract: The aim of this trial was to study the effect of Growth Hormone (GH) on the seminal parameters and testosterone profile from Nellore bulls. Sixteen bulls were allocated in a 2 x 2 factorial arrangement (two ages and two r-bST levels), with four animals per treatment. The r-bST was injected every 14 days, with a total of nine injections per animal, during the 120 days of the experimental period. The semen collections were done every 15 days and blood samples were collected in four hour intervals for 24 hours, and in 30 day intervals from the first r-bST injection for testosterone profile. The semen of adult bulls treated with r-bST showed greater MOT and VIG (P<0.05) in relation to the control (79.70±11.56% vs 64.06±23.65%) and (3.80±0.88 vs 2.92±1.25) respectively; however, the other evaluated seminal parameters were not affected (P>0.05) by the r-bST treatment. The physical measurements of the semen of young animals was also unaffected (P>0.05) by r-bST injection. However, the treatment with r-bST decreased the number of minor morphologic defects (narrow head, giant head, small normal head, round head, free normal head, abaxial implantation, simple bent tail and distal droplet) compared to untreated young bulls (P<0.05). The serum testosterone concentration was influenced (P<0.05) by treatment, at 120 days after the first injection of r-bST and they showed a tendency of three picks in a 24 hour period of sampling MenosResumo: Estudou-se o efeito do Hormônio do Crescimento bovino (bGH) sobre os parâmetros seminais e a concentração sérica de testosterona de touros da raça Nelore. Dezesseis touros foram distribuídos em um delineamento fatorial 2 x 2 (duas idades e dois níveis de r-bST), com quatro animais em cada tratamento. As aplicações de r-bST foram realizadas a cada 14 dias, totalizando nove aplicações por animal, em um período experimental de 120 dias. As coletas de sêmen foram realizadas a cada 15 dias e, para determinar as concentrações de testosterona, foram realizadas coletas de sangue a cada quatro horas, num total de 24 horas, e a cada 30 dias a partir da primeira aplicação de r-bST. O sêmen dos touros adultos tratados com r-bST apresentaram maior motilidade e vigor (P<0,05) em relação aos animais controles (79,70±11,56% vs 64,06±23,65%) e (3,80±0,88 vs 2,92±1,25), respectivamente; entretanto, as demais características seminais não foram influenciadas (P>0,05) pelo tratamento com r-bST. Os aspectos físicos do sêmen dos touros jovens não foram afetados (P>0,05) pelo tratamento com r-bST. Entretanto o tratamento com r-bST diminuiu os defeitos morfológicos menores (delgado, gigante normal, pequeno normal, globoso, cabeça isolada normal, abaxial, cauda dobrada e enrolada levemente e gota distal) em relação aos jovens não tratados (P<0,05). As concentrações séricas de testosterona foram influenciadas (P<0,05) pelo tratamento, aos 120 dias após a primeira aplicação do r-bST, e apresent... Mostrar Tudo |
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Palavras-Chave: |
R-bST; Recombinant bovine Somatotropin; Somatotrofina bovina recombinante. |
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Thesagro: |
Hormônio animal; Sêmen; Testosterona; Touro. |
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Thesaurus Nal: |
Bulls; Hormones; Testosterone. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/124456/1/CNPC-2015-Influencia.pdf
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Marc: |
LEADER 04307naa a2200337 a 4500
001 2016114
005 2016-03-04
008 2015 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/1678-7189$2DOI
100 1 $aAMORIM, L. S.
245 $aInfluência do Hormônio do Crescimento na concentração de testosterona plasmática e nas características seminais de touros jovens e adultos da raça Nelore.$h[electronic resource]
260 $c2015
520 $aResumo: Estudou-se o efeito do Hormônio do Crescimento bovino (bGH) sobre os parâmetros seminais e a concentração sérica de testosterona de touros da raça Nelore. Dezesseis touros foram distribuídos em um delineamento fatorial 2 x 2 (duas idades e dois níveis de r-bST), com quatro animais em cada tratamento. As aplicações de r-bST foram realizadas a cada 14 dias, totalizando nove aplicações por animal, em um período experimental de 120 dias. As coletas de sêmen foram realizadas a cada 15 dias e, para determinar as concentrações de testosterona, foram realizadas coletas de sangue a cada quatro horas, num total de 24 horas, e a cada 30 dias a partir da primeira aplicação de r-bST. O sêmen dos touros adultos tratados com r-bST apresentaram maior motilidade e vigor (P<0,05) em relação aos animais controles (79,70±11,56% vs 64,06±23,65%) e (3,80±0,88 vs 2,92±1,25), respectivamente; entretanto, as demais características seminais não foram influenciadas (P>0,05) pelo tratamento com r-bST. Os aspectos físicos do sêmen dos touros jovens não foram afetados (P>0,05) pelo tratamento com r-bST. Entretanto o tratamento com r-bST diminuiu os defeitos morfológicos menores (delgado, gigante normal, pequeno normal, globoso, cabeça isolada normal, abaxial, cauda dobrada e enrolada levemente e gota distal) em relação aos jovens não tratados (P<0,05). As concentrações séricas de testosterona foram influenciadas (P<0,05) pelo tratamento, aos 120 dias após a primeira aplicação do r-bST, e apresentaram tendência de três picos no período de 24 horas. [Influence of Growth Hormone on plasma testosterone concentration and seminal characteristics of young and adult Nellore bulls]. Abstract: The aim of this trial was to study the effect of Growth Hormone (GH) on the seminal parameters and testosterone profile from Nellore bulls. Sixteen bulls were allocated in a 2 x 2 factorial arrangement (two ages and two r-bST levels), with four animals per treatment. The r-bST was injected every 14 days, with a total of nine injections per animal, during the 120 days of the experimental period. The semen collections were done every 15 days and blood samples were collected in four hour intervals for 24 hours, and in 30 day intervals from the first r-bST injection for testosterone profile. The semen of adult bulls treated with r-bST showed greater MOT and VIG (P<0.05) in relation to the control (79.70±11.56% vs 64.06±23.65%) and (3.80±0.88 vs 2.92±1.25) respectively; however, the other evaluated seminal parameters were not affected (P>0.05) by the r-bST treatment. The physical measurements of the semen of young animals was also unaffected (P>0.05) by r-bST injection. However, the treatment with r-bST decreased the number of minor morphologic defects (narrow head, giant head, small normal head, round head, free normal head, abaxial implantation, simple bent tail and distal droplet) compared to untreated young bulls (P<0.05). The serum testosterone concentration was influenced (P<0.05) by treatment, at 120 days after the first injection of r-bST and they showed a tendency of three picks in a 24 hour period of sampling
650 $aBulls
650 $aHormones
650 $aTestosterone
650 $aHormônio animal
650 $aSêmen
650 $aTestosterona
650 $aTouro
653 $aR-bST
653 $aRecombinant bovine Somatotropin
653 $aSomatotrofina bovina recombinante
700 1 $aKAWAMOTO, T. S.
700 1 $aTORRES, C. A. A.
700 1 $aGUIMARÃES, J. D.
700 1 $aSILVA FILHO, J. M.
700 1 $aOLIVEIRA, M. M. N. F.
700 1 $aCARVALHO, G. R.
700 1 $aFONSECA, J. F. da
773 $tArquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte$gv. 67, n. 1, p. 7-14, Fev. 2015.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca |
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Origem |
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Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
23/03/2022 |
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Data da última atualização: |
23/03/2022 |
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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: |
HORÁK-TERRA, I.; TERRA, F. da S.; LOPES, A. K. A.; DOBBSS, L. B.; FONTANA, A.; SILVA, A. C.; VIDAL-TORRADO, P. |
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Afiliação: |
INGRID HORÁK-TERRA, UNIVERSIDADE FEDERAL DOS VALES DO JEQUITINHONHA E MUCURI; FABRÍCIO DA SILVA TERRA, UNIVERSIDADE FEDERAL DOS VALES DO JEQUITINHONHA E MUCURI; ADRIENY KEROLLEN ALVES LOPES, UNIVERSIDADE FEDERAL DOS VALES DO JEQUITINHONHA E MUCURI; LEONARDO BARROS DOBBSS, UNIVERSIDADE FEDERAL DOS VALES DO JEQUITINHONHA E MUCURI; ADEMIR FONTANA, CNPS; ALEXANDRE CHRISTÓFARO SILVA, UNIVERSIDADE FEDERAL DOS VALES DO JEQUITINHONHA E MUCURI; PABLO VIDAL-TORRADO, USP/ESALQ. |
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Título: |
Soil characterization and drainage effects in a savanna palm swamp (vereda) of an agricultural area from Central Brazil. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 46, e0210065, 2022. |
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DOI: |
http://dx.doi.org/10.36783/18069657rbcs20210065 |
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Idioma: |
Inglês |
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Conteúdo: |
Brazilian palm swamps (veredas) are fundamentals in the hydrological balance of watercourses in the Brazilian savanna (Cerrado). The "sponge effect" of their soils is the main factor controlling local hydrology, storing rainwater, and functioning as headwaters. The restricted knowledge of these tropical ecosystems has led to increased losses, poor preservation, and reduction in their ecosystem services. Veredas have become refuges surrounded by croplands, often drained and inappropriately managed. This study shows the impacts of anthropization on soil processes and properties of a vereda in an agricultural area. Two soil profiles were selected and characterized as preserved and anthropized, respectively upstream and downstream of the studied vereda. Morphological, physical, chemical and microbiological properties were analyzed. Principal Components Analysis (PCA) was applied to synthesize the data and provide evidence of the main properties and underlying processes that most responded to the degradation action. The arrangement of this analysis shows three main distinguish drivers: one joining the properties related to the humification of organic matter and relative accumulation of mineral matter versus accumulation of organic matter; the second with properties related to soil chemical reactivity; and the third reflecting the mineralization of organic matter. Our results suggest that the anthropic action has strongly caused the organic carbon reduction (~22 %). After 20 years, the anthropized soil presents not only a great decline in carbon stock (~14 kg m-2), but also strong impacts on several other ecologic functions, such as water holding capacity. Veredas are complex and fragile environments, and they should be fully protected to maintain their ecosystem services. MenosBrazilian palm swamps (veredas) are fundamentals in the hydrological balance of watercourses in the Brazilian savanna (Cerrado). The "sponge effect" of their soils is the main factor controlling local hydrology, storing rainwater, and functioning as headwaters. The restricted knowledge of these tropical ecosystems has led to increased losses, poor preservation, and reduction in their ecosystem services. Veredas have become refuges surrounded by croplands, often drained and inappropriately managed. This study shows the impacts of anthropization on soil processes and properties of a vereda in an agricultural area. Two soil profiles were selected and characterized as preserved and anthropized, respectively upstream and downstream of the studied vereda. Morphological, physical, chemical and microbiological properties were analyzed. Principal Components Analysis (PCA) was applied to synthesize the data and provide evidence of the main properties and underlying processes that most responded to the degradation action. The arrangement of this analysis shows three main distinguish drivers: one joining the properties related to the humification of organic matter and relative accumulation of mineral matter versus accumulation of organic matter; the second with properties related to soil chemical reactivity; and the third reflecting the mineralization of organic matter. Our results suggest that the anthropic action has strongly caused the organic carbon reduction (~22 %). After 20 years... Mostrar Tudo |
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Palavras-Chave: |
Serviços ecossistêmicos; Tropical wetlands; Water drainage. |
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Thesagro: |
Cerrado; Drenagem; Histossolo; Pântano. |
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Thesaurus NAL: |
Ecosystem services; Histosols. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232865/1/Soil-characterization-and-drainage-effects-in-a-savanna-palm-swamp-2022.pdf
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Marc: |
LEADER 02752naa a2200313 a 4500
001 2141193
005 2022-03-23
008 2022 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.36783/18069657rbcs20210065$2DOI
100 1 $aHORÁK-TERRA, I.
245 $aSoil characterization and drainage effects in a savanna palm swamp (vereda) of an agricultural area from Central Brazil.$h[electronic resource]
260 $c2022
520 $aBrazilian palm swamps (veredas) are fundamentals in the hydrological balance of watercourses in the Brazilian savanna (Cerrado). The "sponge effect" of their soils is the main factor controlling local hydrology, storing rainwater, and functioning as headwaters. The restricted knowledge of these tropical ecosystems has led to increased losses, poor preservation, and reduction in their ecosystem services. Veredas have become refuges surrounded by croplands, often drained and inappropriately managed. This study shows the impacts of anthropization on soil processes and properties of a vereda in an agricultural area. Two soil profiles were selected and characterized as preserved and anthropized, respectively upstream and downstream of the studied vereda. Morphological, physical, chemical and microbiological properties were analyzed. Principal Components Analysis (PCA) was applied to synthesize the data and provide evidence of the main properties and underlying processes that most responded to the degradation action. The arrangement of this analysis shows three main distinguish drivers: one joining the properties related to the humification of organic matter and relative accumulation of mineral matter versus accumulation of organic matter; the second with properties related to soil chemical reactivity; and the third reflecting the mineralization of organic matter. Our results suggest that the anthropic action has strongly caused the organic carbon reduction (~22 %). After 20 years, the anthropized soil presents not only a great decline in carbon stock (~14 kg m-2), but also strong impacts on several other ecologic functions, such as water holding capacity. Veredas are complex and fragile environments, and they should be fully protected to maintain their ecosystem services.
650 $aEcosystem services
650 $aHistosols
650 $aCerrado
650 $aDrenagem
650 $aHistossolo
650 $aPântano
653 $aServiços ecossistêmicos
653 $aTropical wetlands
653 $aWater drainage
700 1 $aTERRA, F. da S.
700 1 $aLOPES, A. K. A.
700 1 $aDOBBSS, L. B.
700 1 $aFONTANA, A.
700 1 $aSILVA, A. C.
700 1 $aVIDAL-TORRADO, P.
773 $tRevista Brasileira de Ciência do Solo$gv. 46, e0210065, 2022.
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Embrapa Solos (CNPS) |
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