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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
22/03/2013 |
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Data da última atualização: |
08/07/2016 |
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Autoria: |
ARAÚJO NETO, J. O. de; AZEVEDO, S. S. de; GENNARI, S. M.; FUNADA, M. R.; PENA, H. F. de J.; ARAUJO, A. R. C. P.; BATISTA, C. de S. A.; SILVA, M. L. C. R.; GOMES, A. A. B.; PIATTI, R. M. |
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Título: |
Prevalence and risk factors for anti-Toxoplasma gondii antibodies in goats of the Seridó Oriental microregion, Rio Grande do Norte state, Northeast region of Brazil. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Veterinary Parasitology, Amsterdam, v. 156, n. 3-4, p. 329-332, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The prevalence and risk factors for anti-Toxoplasma gondii antibodies were investigated in goats of the Seridó Oriental microregion, Rio Grande do Norte state, Northeast region of Brazil. Three hundred and sixty-six blood samples from goats collected by jugular venopuncture were used. For the serologic diagnosis of Toxoplasma gondii infection, the indirect fluorescent-antibody test (IFAT) with cut-off value 1:64 was carried out. The prevalence of anti-T. gondii antibodies was 30.6% [95% CI = 25.9 35.6%] with titers ranging from 1:64 to 1:16,384. The multivariate logistic regression analysis showed that the risk factors associated to anti-T. gondii antibodies were presence of cats in the herd, extensive/semi-intensive management systems and lack of mineral supplementation |
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Palavras-Chave: |
Brasil; Fatores de risco; Soroprevalência. |
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Thesagro: |
Caprino; Toxoplasma gondii. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01729naa a2200289 a 4500
001 1953961
005 2016-07-08
008 2008 bl uuuu u00u1 u #d
100 1 $aARAÚJO NETO, J. O. de
245 $aPrevalence and risk factors for anti-Toxoplasma gondii antibodies in goats of the Seridó Oriental microregion, Rio Grande do Norte state, Northeast region of Brazil.$h[electronic resource]
260 $c2008
520 $aAbstract: The prevalence and risk factors for anti-Toxoplasma gondii antibodies were investigated in goats of the Seridó Oriental microregion, Rio Grande do Norte state, Northeast region of Brazil. Three hundred and sixty-six blood samples from goats collected by jugular venopuncture were used. For the serologic diagnosis of Toxoplasma gondii infection, the indirect fluorescent-antibody test (IFAT) with cut-off value 1:64 was carried out. The prevalence of anti-T. gondii antibodies was 30.6% [95% CI = 25.9 35.6%] with titers ranging from 1:64 to 1:16,384. The multivariate logistic regression analysis showed that the risk factors associated to anti-T. gondii antibodies were presence of cats in the herd, extensive/semi-intensive management systems and lack of mineral supplementation
650 $aCaprino
650 $aToxoplasma gondii
653 $aBrasil
653 $aFatores de risco
653 $aSoroprevalência
700 1 $aAZEVEDO, S. S. de
700 1 $aGENNARI, S. M.
700 1 $aFUNADA, M. R.
700 1 $aPENA, H. F. de J.
700 1 $aARAUJO, A. R. C. P.
700 1 $aBATISTA, C. de S. A.
700 1 $aSILVA, M. L. C. R.
700 1 $aGOMES, A. A. B.
700 1 $aPIATTI, R. M.
773 $tVeterinary Parasitology, Amsterdam$gv. 156, n. 3-4, p. 329-332, 2008.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
13/10/2008 |
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Data da última atualização: |
19/02/2009 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ALVES, A.; FREGENE, M.; SETTER, T.; DUQUE, L.; FERGUSON, M.; MKAMILO, G. |
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Afiliação: |
Alfredo Augusto Cunha Alves, CNPMF; Martin Fregene, CIAT; Tim Setter, Cornell University; Luis Duque, Cornel University; Morag Ferguson, IITA; Geoffrey Mkamilo, Agricultural Research Institute. |
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Título: |
Identifying the physiological and genetic traits related to drought tolerance mechanisms in cassava. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: SCIENTIFIC MEETING OF THE GLOBAL CASSAVA PARTNERSHIP, 1., 2008, Ghent. Cassava: meeting the challenges of the new millennium. Ghent:: IPBO, 2008. p. 142. |
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Idioma: |
Inglês |
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Notas: |
S10-6. |
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Conteúdo: |
To elucidate the mechanisms underlying drought tolerance in cassava and to determine the best physiological and genetic traits to be selected for in breeding programs, a collaborative work among Embrapa, CIAT, IITA, Cornell University, and African NARIs (National Agricultural Research Institures) has been going on since 2005, funded by the Generation Chalenge Program (GCP). Selected contrasting varieties have been screened and evaluated in four representative semi-arid environments in Brazil, Colombia, Tanzania and Ghana. Several trials have tested some hypotheses to characterize genotypes for drought tolerance traits, including: 1) genotypes that accumulate substantial stem starch reserves may be more able to sustain meristems and other respiring organs during a prolonged stress; 2) genotypes that maintain deep fibrous root growth would perform better in drought; 3) genotypes that maintain partitioning to storage roots and have high harvest index yield better in drought; and 4) genotypes that are more effective in closing stomata might be more able to maintain status and retain leaves. Contrasting cassava varieties were crossed at CIAT and segregation populations of F1 seeds obtained. The embryos of each seed were rescued and micropropagated in vitro. A total of 370 individuals from three populations were cloned and around five in vitro copies of each genotype were shipped to the target sites for multiplication and phenotypic evaluation. A genotypic parental screen has revealed 168 polymorphic SSRs in COL1734 x VEN77 and 147 in COL 1468 x BRA 255, from 307 SSRs screened. Genotyping of the mapping populations is underway. MenosTo elucidate the mechanisms underlying drought tolerance in cassava and to determine the best physiological and genetic traits to be selected for in breeding programs, a collaborative work among Embrapa, CIAT, IITA, Cornell University, and African NARIs (National Agricultural Research Institures) has been going on since 2005, funded by the Generation Chalenge Program (GCP). Selected contrasting varieties have been screened and evaluated in four representative semi-arid environments in Brazil, Colombia, Tanzania and Ghana. Several trials have tested some hypotheses to characterize genotypes for drought tolerance traits, including: 1) genotypes that accumulate substantial stem starch reserves may be more able to sustain meristems and other respiring organs during a prolonged stress; 2) genotypes that maintain deep fibrous root growth would perform better in drought; 3) genotypes that maintain partitioning to storage roots and have high harvest index yield better in drought; and 4) genotypes that are more effective in closing stomata might be more able to maintain status and retain leaves. Contrasting cassava varieties were crossed at CIAT and segregation populations of F1 seeds obtained. The embryos of each seed were rescued and micropropagated in vitro. A total of 370 individuals from three populations were cloned and around five in vitro copies of each genotype were shipped to the target sites for multiplication and phenotypic evaluation. A genotypic parental screen has rev... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02288naa a2200193 a 4500
001 1637949
005 2009-02-19
008 2008 bl uuuu u00u1 u #d
100 1 $aALVES, A.
245 $aIdentifying the physiological and genetic traits related to drought tolerance mechanisms in cassava.
260 $c2008
500 $aS10-6.
520 $aTo elucidate the mechanisms underlying drought tolerance in cassava and to determine the best physiological and genetic traits to be selected for in breeding programs, a collaborative work among Embrapa, CIAT, IITA, Cornell University, and African NARIs (National Agricultural Research Institures) has been going on since 2005, funded by the Generation Chalenge Program (GCP). Selected contrasting varieties have been screened and evaluated in four representative semi-arid environments in Brazil, Colombia, Tanzania and Ghana. Several trials have tested some hypotheses to characterize genotypes for drought tolerance traits, including: 1) genotypes that accumulate substantial stem starch reserves may be more able to sustain meristems and other respiring organs during a prolonged stress; 2) genotypes that maintain deep fibrous root growth would perform better in drought; 3) genotypes that maintain partitioning to storage roots and have high harvest index yield better in drought; and 4) genotypes that are more effective in closing stomata might be more able to maintain status and retain leaves. Contrasting cassava varieties were crossed at CIAT and segregation populations of F1 seeds obtained. The embryos of each seed were rescued and micropropagated in vitro. A total of 370 individuals from three populations were cloned and around five in vitro copies of each genotype were shipped to the target sites for multiplication and phenotypic evaluation. A genotypic parental screen has revealed 168 polymorphic SSRs in COL1734 x VEN77 and 147 in COL 1468 x BRA 255, from 307 SSRs screened. Genotyping of the mapping populations is underway.
700 1 $aFREGENE, M.
700 1 $aSETTER, T.
700 1 $aDUQUE, L.
700 1 $aFERGUSON, M.
700 1 $aMKAMILO, G.
773 $tIn: SCIENTIFIC MEETING OF THE GLOBAL CASSAVA PARTNERSHIP, 1., 2008, Ghent. Cassava: meeting the challenges of the new millennium. Ghent:: IPBO, 2008. p. 142.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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