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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
17/10/1995 |
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Data da última atualização: |
17/10/1995 |
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Autoria: |
THOMAS, R. J. |
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Título: |
Forecasting the peak of gastrointestinal nematode infection in lambs. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Veterinary Record, v.103, n.21, p.465-468, Nov. 1978. |
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Idioma: |
Inglês |
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Conteúdo: |
The pattern of sheep nematode infective alarvae on pasture show a marked midsummer peak arising largely from the ewe peri-parturient egg output. Records of larval pattern over
a nine-year period were examined in relation to meteorological data, and a correlation was demonstrated between the time of the summer peak and cumulative rainfall. A "wet score" was allocated to 12-hourly raianfall figures, and a "critical index" of 440 units of wetness was shoen to be necessary before the larval peak was reached. A "warning in-
dex" of 350 to 380 wetness units is suggested which would allow a prediction to be made
of the onset of major infection in lambs. |
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Palavras-Chave: |
Nematode; Parasita; Parasite; Pasture. |
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Thesagro: |
Carneiro; Infecção; Larva; Nematóide; Pastagem. |
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Thesaurus Nal: |
infection; larvae; sheep. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01296naa a2200265 a 4500
001 1786515
005 1995-10-17
008 1978 bl --- 0-- u #d
100 1 $aTHOMAS, R. J.
245 $aForecasting the peak of gastrointestinal nematode infection in lambs.
260 $c1978
520 $aThe pattern of sheep nematode infective alarvae on pasture show a marked midsummer peak arising largely from the ewe peri-parturient egg output. Records of larval pattern over a nine-year period were examined in relation to meteorological data, and a correlation was demonstrated between the time of the summer peak and cumulative rainfall. A "wet score" was allocated to 12-hourly raianfall figures, and a "critical index" of 440 units of wetness was shoen to be necessary before the larval peak was reached. A "warning in- dex" of 350 to 380 wetness units is suggested which would allow a prediction to be made of the onset of major infection in lambs.
650 $ainfection
650 $alarvae
650 $asheep
650 $aCarneiro
650 $aInfecção
650 $aLarva
650 $aNematóide
650 $aPastagem
653 $aNematode
653 $aParasita
653 $aParasite
653 $aPasture
773 $tVeterinary Record$gv.103, n.21, p.465-468, Nov. 1978.
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Registro original: |
Embrapa Pantanal (CPAP) |
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