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VetMed Resource

Veterinary information to support practice, based on evidence and continuing education

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Abstract

Staphylococcus aureus is a frequent and major contagious mastitis bacterial pathogen. The antibiotic treatment cure rates vary considerably from 4% to 92%. Staphylococcus aureus readily becomes resistant to antibiotics, resulting in persistent noncurable intramammary infection that usually results...

Author(s)
Abdi, R. D.; Gillespie, B. E.; Vaughn, J.; Merrill, C.; Headrick, S. I.; Ensermu, D. B.; D'Souza, D. H.; Agga, G. E.; Almeida, R. A.; Oliver, S. P.; Dego, O. K.
Publisher
Mary Ann Liebert, Inc., New Rochelle, USA
Citation
Foodborne Pathogens and Disease, 2018, 15, 7, pp 449-458
Abstract

Coagulase-negative Staphylococcus species (CNS) were isolated from 11.3% (1407 of 12,412) of mammary quarter milk samples obtained from cows in three dairy research herds in 2005. Approximately 27% (383/1407) of CNS was identified to the species level. The species distribution among those CNS...

Author(s)
Gillespie, B. E.; Headrick, S. I.; Boonyayatra, S.; Oliver, S. P.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2009, 134, 1/2, pp 65-72
Abstract

Coagulase-negative Staphylococcus (CNS) isolates (n=168) obtained from milk from heifers and dairy cows were screened for minimum inhibitory concentration (MIC) to antimicrobials used commonly for mastitis therapy. Of the 10 CNS species included in the study, the predominant species were ...

Author(s)
Sawant, A. A.; Gillespie, B. E.; Oliver, S. P.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2009, 134, 1/2, pp 73-81
Abstract

This study was conducted to determine whether intramammary antibiotic treatment of heifer mammary glands following the first milking after calving was effective for reducing the percentage of mammary quarters infected during early lactation. Jersey and Holstein heifers (43 and 36, respectively)...

Author(s)
Oliver, S. P.; Headrick, S. I.; Gillespie, B. E.; Lewis, M. J.; Johnson, D. L.; Lamar, K. C.; Moorehead, H.; Dowlen, H. H.; Hallberg, J. W.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Journal of Dairy Research, 2007, 74, 2, pp 211-217
Abstract

Staphylococcus aureus isolated from milk of cows with mastitis were evaluated for the prevalence of 16 enterotoxin genes (sea-see and seg-seq) and toxic shock syndrome toxin gene (tsst-1). Of 78 S. aureus examined, 73 (93.6%) were positive for one or more enterotoxin genes and these were divided...

Author(s)
Srinivasan, V.; Sawant, A. A.; Gillespie, B. E.; Headrick, S. J.; Ceasaris, L.; Oliver, S. P.
Publisher
Mary Ann Liebert, Inc., New Rochelle, USA
Citation
Foodborne Pathogens and Disease, 2006, 3, 3, pp 274-283
Abstract

Author(s)
Oliver, S. P.; Gillespie, B. E.; Ivey, S. J.; Lewis, M. J.; Johnson, D. L.; Lamar, K. C.; Moorehead, H.; Dowlen, H. H.; Chester, S. T.; Hallberg, J. W.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2004, 87, 6, pp 1727-1731
Abstract

Preparturient heifers (n=561) from 9 herds in 6 US states and 1 Canadian province were enrolled in a study to test the hypothesis that prepartum intramammary therapy would cure existing intramammary infections (IMI) and lead to increased milk production, reduced linear somatic cell count (LSCC),...

Author(s)
Borm, A. A.; Fox, L. K.; Leslie, K. E.; Hogan, J. S.; Andrew, S. M.; Moyes, K. M.; Oliver, S. P.; Schukken, Y. H.; Hancock, D. D.; Gaskins, C. T.; Owens, W. E.; Norman, C.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2006, 89, 6, pp 2090-2098
Abstract

A trial was conducted for 12 months in a herd of 120 Holstein cows in order to determine the efficacy of a teat disinfectant, which contained a phenolic combination, for the prevention of bovine intramammary infections during lactation. Postmilking teat disinfection was compared with a negative...

Author(s)
Oliver, S. P.; Lewis, M. J.; Gillespie, B. E.; Ivey, S. J.; Coleman, L. H.; Almeida, R. A.; Fang, W.; Lamar, K.
Citation
Journal of Food Protection, 1999, 62, 11, pp 1354-1357
Abstract

Little research has focused on treatment of cows with subclinical mastitis during lactation. Ceftiofur is a new broad-spectrum, third-generation cephalosporin antibiotic for veterinary use that inhibits bacterial cell wall synthesis by interfering with enzymes essential for peptidoglycan synthesis. ...

Author(s)
Oliver, S. P.; Gillespie, B. E.; Headrick, S. J.; Moorehead, H.; Lunn, P.; Dowlen, H. H.; Johnson, D. L.; Lamar, K. C.; Chester, S. T.; Moseley, W. M.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2004, 87, 8, pp 2393-2400
Abstract

This review describes intramammary infections with coagulase-negative staphylococci (CNS) in heifers and cows during the non-lactating and peripartum periods. Mammary secretions from udders infected with CNS during early lactation and the non-lactating period have increased somatic cell counts, CNS ...

Author(s)
Oliver, S. P.; Jayarao, B. M.
Citation
Journal of Veterinary Medicine. Series B, 1997, 44, 6, pp 355-363

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