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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
05/09/2000 |
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Data da última atualização: |
10/10/2000 |
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Autoria: |
CONTRERAS, A.; PAAPE, M. J.; MILLER, R. H. |
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Título: |
Prevalence of subclinical intramammary infection caused by Staphylococcus epidermidis in a commercial dairy goat herd. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Small Ruminant Research, v.31, n.3, p.203-208, 1999. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: One herd with 138 lactating goats that had a high somatic cell count (SCC) in bulk tank milk was studied. Foremilk was sampled for bacteriology and SCC at two samplings 28 days apart on the Dairy Herd Improvement Association test day. Blood samples were obtained for serological analyses of caprine arthritis?encephalitis virus. Bacterial intramammary infection (IMI) was diagnosed when the same pathogen was isolated twice from the same udder half. The prevalence of IMI was 34%. Most of the pathogens isolated (95.7%) were Staphylococcus spp. Staphylococcus epidermidis was the predominant species (66.7%), and most of these had similar biochemical profiles. Seroprevalence of caprine arthritis?encephalitis virus infection as assayed by agar gel immunodiffusion was 94.3%. Composite SCC as compiled by the Dairy Herd Improvement Association averaged 106/ml for the first sampling and 1.27×106/ml for the second sampling. Uninfected right and left udder halves had a lower foremilk SCC (1.3 and 1.0×106/ml, respectively) than the infected right and left udder halves (1.74 and 1.66×106/ml), respectively, but only in the left halves was the difference significant. Halves infected by S. epidermidis averaged higher SCC (1.8×106/ml) than the halves infected by other staphylococci (1.5×106/ml). Milk SCC increased as parity increased. |
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Palavras-Chave: |
Artrite encefalite; Artrite encefalite caprina; CAEV; Caprine arthritis-encephalitis virus; Celula somatica; Etiologia mastite; Mastite. |
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Thesagro: |
Cabra leiteira; Caprino. |
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Thesaurus Nal: |
Caprine arthritis-encephalitis; Dairy goats; Somatic cell count; Staphylococcus epidermidis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02276naa a2200301 a 4500
001 1519315
005 2000-10-10
008 1999 bl uuuu u00u1 u #d
100 1 $aCONTRERAS, A.
245 $aPrevalence of subclinical intramammary infection caused by Staphylococcus epidermidis in a commercial dairy goat herd.$h[electronic resource]
260 $c1999
520 $aAbstract: One herd with 138 lactating goats that had a high somatic cell count (SCC) in bulk tank milk was studied. Foremilk was sampled for bacteriology and SCC at two samplings 28 days apart on the Dairy Herd Improvement Association test day. Blood samples were obtained for serological analyses of caprine arthritis?encephalitis virus. Bacterial intramammary infection (IMI) was diagnosed when the same pathogen was isolated twice from the same udder half. The prevalence of IMI was 34%. Most of the pathogens isolated (95.7%) were Staphylococcus spp. Staphylococcus epidermidis was the predominant species (66.7%), and most of these had similar biochemical profiles. Seroprevalence of caprine arthritis?encephalitis virus infection as assayed by agar gel immunodiffusion was 94.3%. Composite SCC as compiled by the Dairy Herd Improvement Association averaged 106/ml for the first sampling and 1.27×106/ml for the second sampling. Uninfected right and left udder halves had a lower foremilk SCC (1.3 and 1.0×106/ml, respectively) than the infected right and left udder halves (1.74 and 1.66×106/ml), respectively, but only in the left halves was the difference significant. Halves infected by S. epidermidis averaged higher SCC (1.8×106/ml) than the halves infected by other staphylococci (1.5×106/ml). Milk SCC increased as parity increased.
650 $aCaprine arthritis-encephalitis
650 $aDairy goats
650 $aSomatic cell count
650 $aStaphylococcus epidermidis
650 $aCabra leiteira
650 $aCaprino
653 $aArtrite encefalite
653 $aArtrite encefalite caprina
653 $aCAEV
653 $aCaprine arthritis-encephalitis virus
653 $aCelula somatica
653 $aEtiologia mastite
653 $aMastite
700 1 $aPAAPE, M. J.
700 1 $aMILLER, R. H.
773 $tSmall Ruminant Research$gv.31, n.3, p.203-208, 1999.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
