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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Pantanal; Embrapa Rondônia. |
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Data corrente: |
28/07/1995 |
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Data da última atualização: |
28/07/1995 |
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Autoria: |
LEVINE, N. D. |
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Título: |
Weather climate, and the bionomics of ruminant nematode larvae. |
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Ano de publicação: |
1963 |
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Fonte/Imprenta: |
Advances in Veterinary Science, v.8, p.215-261, 1963. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
Abstract: The state of our knowledge of the relation of weather and climate to the development and survival of ruminant strongylorid nematode larvae on pasture is reviewed. The use of parasite profiles to compare parasite species distribution in different localities and under different conditions is suggested. These are bar graphs depicting the relative percentages of the diffeent nematode genera or species, based on a figure of 100% for the total number of strongylorid nematodes and recording non-stroingylorids in terms of this total. Climate is related to nematode epidemiology by use of bioclimatographs in wihich mean monthly temperature is plotted in a closed curve against total monthly precipitation. The limits for optimum pasture transmission of Haemonchus are taken to be 5 cm. (2 inches) or more precipitation and 15 to 37C. (59 to 99F.) mean monthly mean temperature. The limits for optimum pasture transmission of Trichostrongylus and Oestertagia are taken to be 5 cm. (2 inches) or more precipitation and 6 to 20C. (43 to 68F.) mean monthly mean temperature. Potential evapotranspiration is an important factor in nematode epidemiology. It determines the soil moisture supply, which in turn has a marked effect on larval development and survival. Potential transmission periods based on temperature and soil moisture were calculated. The potential transmission period of Haemonchus is taken to be at a mean monthly mean temperature of 15 to 37C. (59 to 99F.) when the soil water deficiency is not more than 2.0 cm. (0.8 inches). That of Trichostrongylus and Ostertagia is taken ro be at a mean monthly mean temperature of 6. MenosAbstract: The state of our knowledge of the relation of weather and climate to the development and survival of ruminant strongylorid nematode larvae on pasture is reviewed. The use of parasite profiles to compare parasite species distribution in different localities and under different conditions is suggested. These are bar graphs depicting the relative percentages of the diffeent nematode genera or species, based on a figure of 100% for the total number of strongylorid nematodes and recording non-stroingylorids in terms of this total. Climate is related to nematode epidemiology by use of bioclimatographs in wihich mean monthly temperature is plotted in a closed curve against total monthly precipitation. The limits for optimum pasture transmission of Haemonchus are taken to be 5 cm. (2 inches) or more precipitation and 15 to 37C. (59 to 99F.) mean monthly mean temperature. The limits for optimum pasture transmission of Trichostrongylus and Oestertagia are taken to be 5 cm. (2 inches) or more precipitation and 6 to 20C. (43 to 68F.) mean monthly mean temperature. Potential evapotranspiration is an important factor in nematode epidemiology. It determines the soil moisture supply, which in turn has a marked effect on larval development and survival. Potential transmission periods based on temperature and soil moisture were calculated. The potential transmission period of Haemonchus is taken to be at a mean monthly mean temperature of 15 to 37C. (59 to 99F.) when the soil water ... Mostrar Tudo |
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Palavras-Chave: |
Nematodeo; Ruminantes. |
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Thesagro: |
Epidemiologia; Infestação; Parasitologia; Ruminante. |
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Categoria do assunto: |
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Marc: |
LEADER 02152naa a2200193 a 4500
001 1785103
005 1995-07-28
008 1963 bl --- 0-- u #d
100 1 $aLEVINE, N. D.
245 $aWeather climate, and the bionomics of ruminant nematode larvae.
260 $c1963
520 $aAbstract: The state of our knowledge of the relation of weather and climate to the development and survival of ruminant strongylorid nematode larvae on pasture is reviewed. The use of parasite profiles to compare parasite species distribution in different localities and under different conditions is suggested. These are bar graphs depicting the relative percentages of the diffeent nematode genera or species, based on a figure of 100% for the total number of strongylorid nematodes and recording non-stroingylorids in terms of this total. Climate is related to nematode epidemiology by use of bioclimatographs in wihich mean monthly temperature is plotted in a closed curve against total monthly precipitation. The limits for optimum pasture transmission of Haemonchus are taken to be 5 cm. (2 inches) or more precipitation and 15 to 37C. (59 to 99F.) mean monthly mean temperature. The limits for optimum pasture transmission of Trichostrongylus and Oestertagia are taken to be 5 cm. (2 inches) or more precipitation and 6 to 20C. (43 to 68F.) mean monthly mean temperature. Potential evapotranspiration is an important factor in nematode epidemiology. It determines the soil moisture supply, which in turn has a marked effect on larval development and survival. Potential transmission periods based on temperature and soil moisture were calculated. The potential transmission period of Haemonchus is taken to be at a mean monthly mean temperature of 15 to 37C. (59 to 99F.) when the soil water deficiency is not more than 2.0 cm. (0.8 inches). That of Trichostrongylus and Ostertagia is taken ro be at a mean monthly mean temperature of 6.
650 $aEpidemiologia
650 $aInfestação
650 $aParasitologia
650 $aRuminante
653 $aNematodeo
653 $aRuminantes
773 $tAdvances in Veterinary Science$gv.8, p.215-261, 1963.
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Registro original: |
Embrapa Pantanal (CPAP) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
18/04/2008 |
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Data da última atualização: |
18/04/2008 |
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Autoria: |
NOVOTNY, E. H.; MARTIN-NETO, L. |
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Título: |
Factors affecting humic substances organic free radical analysis by EPR. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: INTERNATIONAL MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY-IHSS, 10., 2000, Toulouse, France. Entering the third millenium with a common approach to humic substances and organic matter in water, soil and sediments: proceedings... [S.l.]: IHSS, 2000. v.1, p. 85-90. |
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Idioma: |
Inglês |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00590naa a2200121 a 4500
001 1030919
005 2008-04-18
008 2000 bl --- 0-- u #d
100 1 $aNOVOTNY, E. H.
245 $aFactors affecting humic substances organic free radical analysis by EPR.
260 $c2000
700 1 $aMARTIN-NETO, L.
773 $tIn: INTERNATIONAL MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY-IHSS, 10., 2000, Toulouse, France. Entering the third millenium with a common approach to humic substances and organic matter in water, soil and sediments: proceedings... [S.l.]: IHSS, 2000.$gv.1, p. 85-90.
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Embrapa Instrumentação (CNPDIA) |
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