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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
17/08/2007 |
Data da última atualização: |
23/06/2021 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
SANTOS, P. M.; CAMARGO-BORTOLIN, L. H. G. de; BERNARDI, A. C. de C.; BENDOLASSI, J. A. |
Afiliação: |
PATRICIA MENEZES SANTOS, CPPSE; Lívia H. Guedes de Camargo-Bortolin, UFSCar/SÃO CARLOS, SP.; ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE; José Albertino Bendolassi, USP/CENA. |
Título: |
Absorção de nitrato e de amônio em cultivares de Panicum maximum. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 44., Jaboticabal, SP. Anais... Jaboticabal: SBZ: UNESP, 2007. |
Descrição Física: |
1 CD-ROM |
Idioma: |
Português |
Conteúdo: |
A forma de absorção e o padrão de partição de N em Panicum maximum cvs. Tanzânia e Aruana foram determinados utilizando-se técnicas isotópicas. O experimento foi desenvolvido em casa de vegetação na Embrapa Pecuária Sudeste, em São Carlos SP. Soluções nutritivas enriquecidas com 15NO3 ou 15NH4 foram utilizadas para estimar a absorção de amônio e nitrato. Nas folhas em expansão, bainhas e lâminas das folhas novas e hastes o conteúdo de N total foi maior no capim-tanzânia; já o conteúdo de N total das raízes foi maior no capim-aruana. A variação no conteúdo de N total entre a primeira e a segunda coleta indica que nos tratamentos 15NH4 e 15NO3 os principais drenos de nitrogênio foram os perfilhos laterais e as folhas em expansão. As raízes também representaram um importante dreno de nitrogênio, exceto para o capim-tanzânia no tratamento 15NH4. O conteúdo de 15NO3 na planta inteira foi mais elevado que o de 15NH4 nos dois capins, indicando que há absorção preferencial de nitrogênio na forma de nitrato. Concluiu-se que os perfilhos laterais, as folhas em expansão e as raízes representam os principais drenos de nitrogênio do capim-tanzânia e do capim-aruana e que nestes cultivares há absorção preferencial de nitrogênio na forma de nitrato. |
Palavras-Chave: |
C-apim-aruana; Capim-tanzânia; Fonte; Partição de nutrientes. |
Thesagro: |
Dreno. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPPSE/17098/1/PROCIPMS2007.00098.pdf
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Marc: |
LEADER 02001nam a2200217 a 4500 001 1033023 005 2021-06-23 008 2007 bl uuuu u00u1 u #d 100 1 $aSANTOS, P. M. 245 $aAbsorção de nitrato e de amônio em cultivares de Panicum maximum.$h[electronic resource] 260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 44., Jaboticabal, SP. Anais... Jaboticabal: SBZ: UNESP$c2007 300 $c1 CD-ROM 520 $aA forma de absorção e o padrão de partição de N em Panicum maximum cvs. Tanzânia e Aruana foram determinados utilizando-se técnicas isotópicas. O experimento foi desenvolvido em casa de vegetação na Embrapa Pecuária Sudeste, em São Carlos SP. Soluções nutritivas enriquecidas com 15NO3 ou 15NH4 foram utilizadas para estimar a absorção de amônio e nitrato. Nas folhas em expansão, bainhas e lâminas das folhas novas e hastes o conteúdo de N total foi maior no capim-tanzânia; já o conteúdo de N total das raízes foi maior no capim-aruana. A variação no conteúdo de N total entre a primeira e a segunda coleta indica que nos tratamentos 15NH4 e 15NO3 os principais drenos de nitrogênio foram os perfilhos laterais e as folhas em expansão. As raízes também representaram um importante dreno de nitrogênio, exceto para o capim-tanzânia no tratamento 15NH4. O conteúdo de 15NO3 na planta inteira foi mais elevado que o de 15NH4 nos dois capins, indicando que há absorção preferencial de nitrogênio na forma de nitrato. Concluiu-se que os perfilhos laterais, as folhas em expansão e as raízes representam os principais drenos de nitrogênio do capim-tanzânia e do capim-aruana e que nestes cultivares há absorção preferencial de nitrogênio na forma de nitrato. 650 $aDreno 653 $aC-apim-aruana 653 $aCapim-tanzânia 653 $aFonte 653 $aPartição de nutrientes 700 1 $aCAMARGO-BORTOLIN, L. H. G. de 700 1 $aBERNARDI, A. C. de C. 700 1 $aBENDOLASSI, J. A.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
26/02/2018 |
Data da última atualização: |
06/12/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
PEIXOTO, R. M.; ANDRIOLI, A.; PINHEIRO, R. R.; ALVES, F. S. F.; SANTOS, V. W. S. dos; SOUSA, M. M. de; AZEVEDO, D. A. A. de; DAMASCENO, E. M.; TEIXEIRA, M. F. da S. |
Afiliação: |
Renato Mesquita Peixoto, Pós-graduação - Laboratório de Virologia (LABOVIR), Universidade Estadual do Ceará (UECE) - Fortaleza, CE, Brasil; ALICE ANDRIOLI, CNPC; RAYMUNDO RIZALDO PINHEIRO, CNPC; FRANCISCO SELMO FERNANDES ALVES, CNPC; Vanderlan Warlington Souza dos Santos, Universidade Federal Rural do Semiárido (UFERSA) - Mossoró, RN, Brazil; Maximiana Mesquita de Sousa, Universidade Federal Rural do Semiárido (UFERSA) - Mossoró, RN, Brazil; Dalva Alana Aragão de Azevedo, Pós-graduação - Laboratório de Virologia (LABOVIR), Universidade Estadual do Ceará (UECE), Fortaleza, CE, Brazil; Edgar Marques Damasceno, Pós-graduação - Universidade Estadual Vale do Acaraú (UVA) - Sobral, CE, Brasil; Maria Fátima da Silva Teixeira, Pós-graduação - Laboratório de Virologia (LABOVIR), Universidade Estadual do Ceará (UECE) - Fortaleza, CE, Brasil. |
Título: |
Mycoplasma agalactiae em rebanhos leiteiros no estado do Ceará em associação com o vírus da artrite encefalite caprina. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Acta Scientiae Veterinariae, v. 46, Pub. 1533, 2018. |
Idioma: |
Português |
Conteúdo: |
Background: Contagious agalactia is an infectious disease caused by Mycoplasma agalactiae (M. agalactiae) that occurs in small ruminants leading to productive and economic losses. Due to the similarity of clinical signs presented in Caprine Arthritis Encephalitis (CAE), which is a viral disease, a differential diagnosis is important. Therefore, this study aimed to investigate the presence of anti-Mycoplasma agalactiae antibodies in dairy goat flocks in Ceará State and possible correlation with CAE. Materials, Methods & Results: The research was performed in four mesoregions in Ceará State (Metropolitan Region of FortalezaMRF; Northeast Ceará - NeC; North Ceará - NC; Sertões in Ceará - SC), from which 16 productions located in 10 cities with the highest representativeness for goat milk production within the State or mesoregion were sampled. A total of 417 females and 69 males (486 animals) of breeds with dairy production aptitude, pure or crossbreed, maintained in semi-intensive or intensive systems, were tested. Blood serum was obtained by venipuncture of the jugular vein with vacuum pressure syringe followed by centrifugation at 1,500 g for 10min. Antibodies against the caprine arthritis encephalitis virus (CAEV) were detected with micro technique of agarose gel immunodiffusion (AGID) and Western Blot (WB). The anti-Mycoplasma agalactiae antibodies were detected with commercial kit of enzymatic immunoassay (IDEXX Laboratories). Seroprevalence of M. agalactiae in dairy goat flocks in Ceará State was 0.62% (3/486). From the total of 16 visited productions, 18.75% (3/16) had seropositive animals for M. agalactiae located in MRF, NC and SC mesoregions. CAE was diagnosed in 56.25% (9/16) of productions with AGID and in 81.25% (13/16) with WB. In addition, 5.2% (25/486) of animals were seropositive for CAE with AGID and 16.6% (80/486) with WB. Animals that reacted positive for M. agalactiae were all females of pure breed with milk production aptitude in distinct mesoregions submitted to intensive rearing system. None of these animals was positive in neither test (AGID or WB) for CAE. Therefore, no correlation of results obtained in diagnosis of M. agalactiae by ELISA and CAEV by AGID or WB (P < 0.05) was identified. However, two out of three productions that were positive for M. agalactiae presented positive results for CAEV with frequencies of 10% and 20%. Discussion: Seroprevalence of M. agalactiae in Ceará State was low in comparison with other Brazilian states and even other countries. However, the presence of the pathogen in more than one mesoregion indicates that the disease occurs in different locations within the State. Therefore, flocks in Ceará are susceptible to the infection, which may be favored by uncontrolled commerce that occurs with deficient surveillance, associated with the importation of animals to improve flock genetic quality. The presence of the pathogen in dairy goats may contribute to significant losses in the local production. On the other hand, CAE was diagnosed in nearly all productions proving the dissemination of this lentivirus infection among dairy goat flocks in Ceará State. Although an association between these diseases was not identified, the presence of a retrovirus in the organism may favor co-infection with another micro-organism, promoting the deficiency in the immune system of the host. In conclusion, M. agalactiae is present in different mesoregions of the Ceará State and control measures should be adopted in short term to prevent pathogen dissemination and, consequently reduce economic and productive losses in the local dairy goat production. No correlation was identified between the prevalence of infection by CAEV and M. agalactiae in this study. [Mycoplasma agalactiae in dairy goat flocks bred in Ceará State of Ceará in association with Caprine Arthritis Encephalitis Virus]. MenosBackground: Contagious agalactia is an infectious disease caused by Mycoplasma agalactiae (M. agalactiae) that occurs in small ruminants leading to productive and economic losses. Due to the similarity of clinical signs presented in Caprine Arthritis Encephalitis (CAE), which is a viral disease, a differential diagnosis is important. Therefore, this study aimed to investigate the presence of anti-Mycoplasma agalactiae antibodies in dairy goat flocks in Ceará State and possible correlation with CAE. Materials, Methods & Results: The research was performed in four mesoregions in Ceará State (Metropolitan Region of FortalezaMRF; Northeast Ceará - NeC; North Ceará - NC; Sertões in Ceará - SC), from which 16 productions located in 10 cities with the highest representativeness for goat milk production within the State or mesoregion were sampled. A total of 417 females and 69 males (486 animals) of breeds with dairy production aptitude, pure or crossbreed, maintained in semi-intensive or intensive systems, were tested. Blood serum was obtained by venipuncture of the jugular vein with vacuum pressure syringe followed by centrifugation at 1,500 g for 10min. Antibodies against the caprine arthritis encephalitis virus (CAEV) were detected with micro technique of agarose gel immunodiffusion (AGID) and Western Blot (WB). The anti-Mycoplasma agalactiae antibodies were detected with commercial kit of enzymatic immunoassay (IDEXX Laboratories). Seroprevalence of M. agalactiae in dairy goat ... 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Palavras-Chave: |
Agalaxia contagiosa; CAE; CAEV; Caprine arthritis encephalit virus; Correlação; Diagnosis; Mycoplasmoses. |
Thesagro: |
Anticorpo; Caprino; Diagnóstico; Doença animal; Micoplasmose. |
Thesaurus NAL: |
Animal diseases; Antibodies; Brazil; correlation; Goats; Lentivirus; Mycoplasma agalactiae. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/173157/1/CNPC-2018-Mycoplasma.pdf
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Marc: |
LEADER 05118naa a2200445 a 4500 001 2088158 005 2023-12-06 008 2018 bl uuuu u00u1 u #d 100 1 $aPEIXOTO, R. M. 245 $aMycoplasma agalactiae em rebanhos leiteiros no estado do Ceará em associação com o vírus da artrite encefalite caprina. 260 $c2018 520 $aBackground: Contagious agalactia is an infectious disease caused by Mycoplasma agalactiae (M. agalactiae) that occurs in small ruminants leading to productive and economic losses. Due to the similarity of clinical signs presented in Caprine Arthritis Encephalitis (CAE), which is a viral disease, a differential diagnosis is important. Therefore, this study aimed to investigate the presence of anti-Mycoplasma agalactiae antibodies in dairy goat flocks in Ceará State and possible correlation with CAE. Materials, Methods & Results: The research was performed in four mesoregions in Ceará State (Metropolitan Region of FortalezaMRF; Northeast Ceará - NeC; North Ceará - NC; Sertões in Ceará - SC), from which 16 productions located in 10 cities with the highest representativeness for goat milk production within the State or mesoregion were sampled. A total of 417 females and 69 males (486 animals) of breeds with dairy production aptitude, pure or crossbreed, maintained in semi-intensive or intensive systems, were tested. Blood serum was obtained by venipuncture of the jugular vein with vacuum pressure syringe followed by centrifugation at 1,500 g for 10min. Antibodies against the caprine arthritis encephalitis virus (CAEV) were detected with micro technique of agarose gel immunodiffusion (AGID) and Western Blot (WB). The anti-Mycoplasma agalactiae antibodies were detected with commercial kit of enzymatic immunoassay (IDEXX Laboratories). Seroprevalence of M. agalactiae in dairy goat flocks in Ceará State was 0.62% (3/486). From the total of 16 visited productions, 18.75% (3/16) had seropositive animals for M. agalactiae located in MRF, NC and SC mesoregions. CAE was diagnosed in 56.25% (9/16) of productions with AGID and in 81.25% (13/16) with WB. In addition, 5.2% (25/486) of animals were seropositive for CAE with AGID and 16.6% (80/486) with WB. Animals that reacted positive for M. agalactiae were all females of pure breed with milk production aptitude in distinct mesoregions submitted to intensive rearing system. None of these animals was positive in neither test (AGID or WB) for CAE. Therefore, no correlation of results obtained in diagnosis of M. agalactiae by ELISA and CAEV by AGID or WB (P < 0.05) was identified. However, two out of three productions that were positive for M. agalactiae presented positive results for CAEV with frequencies of 10% and 20%. Discussion: Seroprevalence of M. agalactiae in Ceará State was low in comparison with other Brazilian states and even other countries. However, the presence of the pathogen in more than one mesoregion indicates that the disease occurs in different locations within the State. Therefore, flocks in Ceará are susceptible to the infection, which may be favored by uncontrolled commerce that occurs with deficient surveillance, associated with the importation of animals to improve flock genetic quality. The presence of the pathogen in dairy goats may contribute to significant losses in the local production. On the other hand, CAE was diagnosed in nearly all productions proving the dissemination of this lentivirus infection among dairy goat flocks in Ceará State. Although an association between these diseases was not identified, the presence of a retrovirus in the organism may favor co-infection with another micro-organism, promoting the deficiency in the immune system of the host. In conclusion, M. agalactiae is present in different mesoregions of the Ceará State and control measures should be adopted in short term to prevent pathogen dissemination and, consequently reduce economic and productive losses in the local dairy goat production. No correlation was identified between the prevalence of infection by CAEV and M. agalactiae in this study. [Mycoplasma agalactiae in dairy goat flocks bred in Ceará State of Ceará in association with Caprine Arthritis Encephalitis Virus]. 650 $aAnimal diseases 650 $aAntibodies 650 $aBrazil 650 $acorrelation 650 $aGoats 650 $aLentivirus 650 $aMycoplasma agalactiae 650 $aAnticorpo 650 $aCaprino 650 $aDiagnóstico 650 $aDoença animal 650 $aMicoplasmose 653 $aAgalaxia contagiosa 653 $aCAE 653 $aCAEV 653 $aCaprine arthritis encephalit virus 653 $aCorrelação 653 $aDiagnosis 653 $aMycoplasmoses 700 1 $aANDRIOLI, A. 700 1 $aPINHEIRO, R. R. 700 1 $aALVES, F. S. F. 700 1 $aSANTOS, V. W. S. dos 700 1 $aSOUSA, M. M. de 700 1 $aAZEVEDO, D. A. A. de 700 1 $aDAMASCENO, E. M. 700 1 $aTEIXEIRA, M. F. da S. 773 $tActa Scientiae Veterinariae$gv. 46, Pub. 1533, 2018.
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Embrapa Caprinos e Ovinos (CNPC) |
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