Characterisation of staphylococci associated with clinical and subclinical bovine mastitis

Hodges, R.T.; Jones, Yvonne; Holland, Juliette

doi:10.1080/00480169.1984.35099

Cited by 28 publications

(15 citation statements)

References 14 publications

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“…In Japan, the major aetiological factor of clinical mastitis was S. epidermidis (Baba et al 1980), whereas in Portugal this species was isolated most frequently in cows with subclinical mastitis (Nunes et al 2007). Furthermore, Hodges et al (1984), who identified species in milk of New Zealand cows with increased SCC but no other clinical symptoms, showed that the majority of isolates had biochemical features of S. chromogenes.…”

Section: Discussionmentioning

confidence: 99%

Coagulase-negative staphylococci (CNS) as an aetiological factor of mastitis in cows

Bochniarz¹,

Wawron²,

Szczubiał³

2013

Polish Journal of Veterinary Sciences

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The aim of the present study was to determine the proportions of individual coagulase-negative Staphylococcus species in clinical and subclinical mastitis. The material consisted of 100 CNS isolates obtained from 223 milk samples collected from cows with clinical and subclinical mastitis. Coagulase-negative staphylococci constituted 44.8% of all isolated microorganisms. CNS were isolated from the mammary gland secretions of 86 cows from farms in the Lublin region (Poland). Clinical mastitis was found in 20 whereas subclinical mastitis in 66 study cows (23.3% and 76.7%, respectively). The symptoms of clinical mastitis were mild. The clinical forms of mastitis concerned mainly the first or second lactation. Subclinical mastitis was most commonly observed during the second lactation. Four CNS species (S. xylosus, S. chromogenes, S. haemolyticus and S. sciuri ) were isolated from clinical and subclinical mastitis. S. xylosus was the commonest CNS species isolated from cows with clinical mastitis whereas S. chromogenes was the most prevalent one in subclinical mastitis cases. The three CNS species (S. warneri, S. hominis and S. saprophyticus) caused only subclinical mastitis.

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Section: Discussionmentioning

confidence: 99%

Coagulase-negative staphylococci (CNS) as an aetiological factor of mastitis in cows

Bochniarz¹,

Wawron²,

Szczubiał³

2013

Polish Journal of Veterinary Sciences

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“…hyicus, Staph. simulans [9][10][11][12][13]. The most prevalent CNS species isolated from goats with subclinical mastitis was Staph.…”

Section: Speciationmentioning

confidence: 99%

“…A collection of 41 isolates from the mammary secretion of ewes with acute clinical mastitis (isolates [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], subelinical mastitis (20-36) or chronic clinical mastitis detected after weaning (37)(38)(39)(40)(41) were obtained during a survey of ovine mastitis in England and Wales [4].…”

Section: Staphylococcal Isolatesmentioning

confidence: 99%

Some properties of coagulase–negative staphylococci isolated from cases of ovine mastitis

et al. 1994

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“…Entre as espé-cies mais frequentemente isoladas, S. aureus é um pató-geno primário, responsável por infecções clínicas e subclínicas e altas contagens de células somáticas (CCS) no leite (National Mastitis Council 2004). Duas outras espéci-es coagulase positivas, S. hyicus e S. intermedius têm sido relatadas como causas de mastite, mas são encontradas menos frequentemente nos rebanhos leiteiros (Hodges et al 1984, Roberson et al 1996, Capurro et al 1999, Gianneechini et al 2002. As demais espécies de Staphylococcus, classificadas como coagulase negativas, são consideradas patógenos secundários.…”

Section: Introductionunclassified

Uso de PCR e sequenciamento do rDNA 16S para identificação de bactérias do gênero Staphylococcus isoladas de mastite bovina

Lange¹,

Brito²,

Brito

et al. 2011

Pesq. Vet. Bras.

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O objetivo deste trabalho foi identificar espécies de Staphylococcus (n=100) isoladas de mastite em rebanhos bovinos do Estado de Minas Gerais. Para esta finalidade foram utilizadas reações de PCR empregando oligonucleotídeos iniciadores descritos anteriormente para amplificar genes específicos de S. aureus (femA), S. intermedius (rDNA 16S) e S. hyicus (rDNA 16S-23S) e o sequenciamento do rDNA 16S. De acordo com as reações de PCR, 83 isolados foram identificados como S. aureus, 13 isolados como S. intermedius, dois como S. hyicus e dois isolados não foram identificados. Foram submetidos ao sequenciamento do rDNA 16S seis isolados identificados como S. aureus e os 17 restantes. Os seis isolados identificados como S. aureus confirmaram essa identificação. Dos outros 17 isolados, 13 foram identificados como S. chromogenes e quatro como S. hyicus, com similaridade igual ou superior a 99%. Baseando-se nos resultados da reação de PCR do gene femA e do sequenciamento do rDNA 16S, foram identificados 83 S. aureus, 13 S. chromogenes e quatro S. hyicus. Neste estudo os oligonucleotídeos iniciadores empregados na reação de PCR para S. intermedius não foram específicos, pois amplificaram também S. chromogenes; e os empregados na reação de PCR para S. hyicus não foram sensíveis, pois falharam na identificação de dois isolados de S. hyicus. A identificação definitiva das duas últimas espécies somente foi possível pelo sequenciamento do rDNA 16S.

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Characterisation of staphylococci associated with clinical and subclinical bovine mastitis

Cited by 28 publications

References 14 publications

Coagulase-negative staphylococci (CNS) as an aetiological factor of mastitis in cows

Coagulase-negative staphylococci (CNS) as an aetiological factor of mastitis in cows

Some properties of coagulase–negative staphylococci isolated from cases of ovine mastitis

Uso de PCR e sequenciamento do rDNA 16S para identificação de bactérias do gênero Staphylococcus isoladas de mastite bovina

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