Results 221 to 230 of about 6,022 (255)

Biofilm production by Staphylococcus aureus associated with intramammary infection

Veterinary Microbiology, 2005
Biofilm production by 221 Staphylococcus aureus isolates from 45 dairy herds was evaluated. Isolates were from composite milk of 117 cows, from teat skin of 70 cows, and from 34 milking machine unit liners. Of S. aureus from milk samples, 41.4% were biofilm producers, as compared to 24.7 and 14.7% of the isolates collected from skin and liners.
L K, Fox, R N, Zadoks, C T, Gaskins
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Host-response patterns of intramammary infections in dairy cows

Veterinary Immunology and Immunopathology, 2011
Many different bacterial species have the ability to cause an infection of the bovine mammary gland and the host response to these infections is what we recognize as mastitis. In this review we evaluate the pathogen specific response to the three main bacterial species causing bovine mastitis: Escherichia coli, Streptococcus uberis and Staphylococcus ...
Schukken, Ynte H., Günther, J., Fitzpatrick, J., Fontaine, M. C., Goetze, L., Holst, O., Leigh, J., Petzl, W., Schuberth, H. J., Sipka, A., Smith, D. G.E., Quesnell, R., Watts, J., Yancey, R., Zerbe, H., Gurjar, A., Zadoks, R. N., Seyfert, H. M.   +17 more
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Duration of bovine intramammary infections in commercial dairy herds

Veterinary Record, 1985
Data on the infection status of cows on seven commercial dairy farms were collected over 492 full lactations. Foremilk samples were taken at an average interval of five weeks. A total of 249 streptococcal and 433 staphylococcal infections were diagnosed.
F J, Grommers, D, van de Geer, C A, in 't Veen   +2 more
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Prevention of Intramammary Infections by Milking Time Hygiene

American Journal of Veterinary Research, 1970
SUMMARY Certain milking time hygienic procedures (washing of the udder and teats with disinfectant-free running tap water and drying with individual disposable paper towels before each milking, sanitization of the milking unit with hot water, and teat dipping in a disinfectant solution after milking) prevented transmission of microorganisms from cow to
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Pharmacokinetics and efficacy of teicoplanin against intramammary infections in sheep

Veterinary Record, 2009
The pharmacokinetics of teicoplanin were evaluated in 10 healthy sheep. After intravenous injection it showed monophasic behaviour, with a short mean (sd) elimination half‐life (5 [0.24] hours). After intramuscular injection its bioavailability was 100 per cent but it was absorbed slowly; its elimination half‐life was ...
NACCARI, CLARA, NIUTTA, Pietro Paolo, TROMBETTA, Domenico, De Domenico A., PIZZIMENTI, FRANCESCO, Cagnardi P., Carli S., NACCARI, Francesco   +7 more
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Detection of ovine intramammary infection with the California mastitis test

Journal of the American Veterinary Medical Association, 1986
SUMMARY The overall sensitivity of the California mastitis test (cmt) for detecting intramammary infection (the likelihood of a positive cmt score in the presence of intramammary infection) was 69.3%. The specificity of the cmt (likelihood of a negative test in the absence of intramammary infection) was 76.5%.
W D, Hueston, N R, Hartwig, J K, Judy
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Natural and experimental bovine intramammary infection with Prototheca zopfii

American Journal of Veterinary Research, 1984
SUMMARY A naturally occurring case of chronic mastitis caused by Prototheca zopfii was detected in a dairy cow. The cow was observed for 12 weeks, and milk samples were cultured each week. Milk production was decreased, and high numbers (> 103/ml) of the organism were detected in the milk. Six glands of 2 cows were inoculated with small numbers of P
J S, McDonald, J L, Richard, N F, Cheville   +2 more
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Antibiograms of Streptococci Isolated from Bovine Intramammary Infections

American Journal of Veterinary Research, 1976
SUMMARY A total of 455 streptococcal cultures from bovine intramammary infection in 72 herds were studied to determine their sensitivity to 17 antimicrobial agents. More than 90% of the cultures were sensitive to carbenicillin, chloramphenicol, erythromycin, and penicillin.
J S, McDonald, T J, McDonald, D R, Stark
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The effect of intramuscular and intramammary vaccination of cows on antibody levels and resistance to intramammary infection by Staphylococcus aureus

Research in Veterinary Science, 1975
Cows were vaccinated simultaneously by the intramuscular and intramammary route with formolised Staphylococcus aureus cells of strains BB, Mexi and 3528. Vaccination resulted in slight increases in serum agglutinin titres, but the levels of the agglutinins in milk and colostrum were not higher in vaccinated cows than in the unvaccinated controls ...
J H, Brock, E D, Steel, B, Reiter
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An atypical Staphylococcus aureus intramammary infection in a dairy herd

Veterinary Microbiology, 1996
An atypical Staphylococcus aureus (S. aureus) strain, isolated in a dairy herd over an 8 month period, was examined. The S. aureus strain was clumping factor negative, weakly heat-resistant deoxyribonuclease positive and produced narrow zones of double haemolysis. In total, 57 quarter infections were observed.
H, Laevens, L A, Devriese, H, Deluyker, J, Hommez, A, de Kruif   +4 more
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