|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
01/08/1992 |
Data da última atualização: |
01/12/2023 |
Autoria: |
SMITH, W. D.; JACKSON, F.; JACKSON, E.; WILLIAMS, J. |
Título: |
Age immunity to ostertagia circuncincta comparison to the local immune responses of 4 1/2 and 10-Month-old lambs. |
Ano de publicação: |
1985 |
Fonte/Imprenta: |
Journal of Comparative Pathology, v. 95, n. 2, p. 235-245, Apr. 1985. |
DOI: |
https://doi.org/10.1016/0021-9975(85)90010-6 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: In 2 experiments, the local immune response to infection with 50 000 O. circumcincta was monitored in previously infected lambs by following changes in the composition of gastric lymph. The previously infected lambs were partially resistant to the challenge in that they harboured a greater proportion of early fourth stage parasites and that the developing larvae recovered from them were distinctly shorter than those present in controls. They also exhibited a secondary local immune response in the gastric lymph consisting of increases in the output of lymphoblasts and IgA cells which peaked 3 to 5 days after challenge, followed by increases in lymph IgA and IgA anti-larval antibody on days 6 and 7. The size of the total IgA response in a sheep was highly correlated with the degree of stunting of its larvae, suggesting that IgA antibody can reduce the growth of developing Ostertagia. When compared with the results of 2 identically designed experiments carried out previously in 10-month-old sheep, the younger lambs were measurably less resistant to challenge and most aspects of the magnitude of the local immune response were significantly depressed, although the timing of the response was similar. It is suggested that this poorly developed ability to mount a secondary mucosal immune response may explain the relative failure of the younger lamb to develop resistance to gastro-intestinal nematodes. |
Palavras-Chave: |
Nematode gastrintestinal; Trichostrongyloidiasis / veterinary*. |
Thesagro: |
Ovino; Parasitologia; Resistência. |
Thesaurus Nal: |
Biosynthesis; Gastrointestinal nematodes; Immunoglobulin A; Immunology; Kinetics; Lymphocytes; Ostertagia; Regression analysis; Sheep diseases. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02459naa a2200337 a 4500 001 1521259 005 2023-12-01 008 1985 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/0021-9975(85)90010-6$2DOI 100 1 $aSMITH, W. D. 245 $aAge immunity to ostertagia circuncincta comparison to the local immune responses of 4 1/2 and 10-Month-old lambs.$h[electronic resource] 260 $c1985 520 $aAbstract: In 2 experiments, the local immune response to infection with 50 000 O. circumcincta was monitored in previously infected lambs by following changes in the composition of gastric lymph. The previously infected lambs were partially resistant to the challenge in that they harboured a greater proportion of early fourth stage parasites and that the developing larvae recovered from them were distinctly shorter than those present in controls. They also exhibited a secondary local immune response in the gastric lymph consisting of increases in the output of lymphoblasts and IgA cells which peaked 3 to 5 days after challenge, followed by increases in lymph IgA and IgA anti-larval antibody on days 6 and 7. The size of the total IgA response in a sheep was highly correlated with the degree of stunting of its larvae, suggesting that IgA antibody can reduce the growth of developing Ostertagia. When compared with the results of 2 identically designed experiments carried out previously in 10-month-old sheep, the younger lambs were measurably less resistant to challenge and most aspects of the magnitude of the local immune response were significantly depressed, although the timing of the response was similar. It is suggested that this poorly developed ability to mount a secondary mucosal immune response may explain the relative failure of the younger lamb to develop resistance to gastro-intestinal nematodes. 650 $aBiosynthesis 650 $aGastrointestinal nematodes 650 $aImmunoglobulin A 650 $aImmunology 650 $aKinetics 650 $aLymphocytes 650 $aOstertagia 650 $aRegression analysis 650 $aSheep diseases 650 $aOvino 650 $aParasitologia 650 $aResistência 653 $aNematode gastrintestinal 653 $aTrichostrongyloidiasis / veterinary* 700 1 $aJACKSON, F. 700 1 $aJACKSON, E. 700 1 $aWILLIAMS, J. 773 $tJournal of Comparative Pathology$gv. 95, n. 2, p. 235-245, Apr. 1985.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
16/07/2004 |
Data da última atualização: |
16/07/2004 |
Autoria: |
VILELA, L.; SOARES, W. V.; SOUSA, D. M. G. de; MACEDO, M. C. M. |
Afiliação: |
Embrapa Cerrados (Planaltina, DF). |
Título: |
Calagem e adubação para pastagens. |
Edição: |
2. ed. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
In: SOUSA, D. M. G. de; LOBATO, E. (Ed.). Cerrado: correção do solo e adubação. Brasília, DF: Embrapa Informação Tecnológica, 2004. |
Páginas: |
p. 367-382. |
ISBN: |
85-7075-019-6 |
Idioma: |
Português |
Notas: |
CNPGC.
|
Conteúdo: |
Calagem e adubação para o estabelecimento. Exigência de fertilidade so solo das principais gramíneas e leguminosas forrageiras.Calagem. Gessagem. Adubação. Fósforo. Potássio. Nitrogênio. Enxofre. Micronutrientes. Calagem e adubação para manutenção.Considerações finais. |
Palavras-Chave: |
Brasil; Brazilian savannas. |
Thesagro: |
Adubação; Calagem; Cerrado; Pastagem. |
Thesaurus NAL: |
Brazil; fertilizer application; liming; pastures. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01150naa a2200325 a 4500 001 1325549 005 2004-07-16 008 2004 bl uuuu u00u1 u #d 020 $a85-7075-019-6 100 1 $aVILELA, L. 245 $aCalagem e adubação para pastagens. 250 $a2. ed. 260 $c2004 300 $ap. 367-382. 500 $aCNPGC. 520 $aCalagem e adubação para o estabelecimento. Exigência de fertilidade so solo das principais gramíneas e leguminosas forrageiras.Calagem. Gessagem. Adubação. Fósforo. Potássio. Nitrogênio. Enxofre. Micronutrientes. Calagem e adubação para manutenção.Considerações finais. 650 $aBrazil 650 $afertilizer application 650 $aliming 650 $apastures 650 $aAdubação 650 $aCalagem 650 $aCerrado 650 $aPastagem 653 $aBrasil 653 $aBrazilian savannas 700 1 $aSOARES, W. V. 700 1 $aSOUSA, D. M. G. de 700 1 $aMACEDO, M. C. M. 773 $tIn: SOUSA, D. M. G. de; LOBATO, E. (Ed.). Cerrado: correção do solo e adubação. Brasília, DF: Embrapa Informação Tecnológica, 2004.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Gado de Corte (CNPGC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|