Results 231 to 240 of about 10,871 (266)

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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Prevalence and Effects of Intramammary Infection in Beef Cows

Journal of Animal Science, 1986
Prevalence and effects of intramammary infection in 322 beef cows was determined during three calving intervals. Intramammary infection was confirmed in 37% of cows and 18.1% of quarters. Coagulase-positive staphylococci accounted for 17.9% of infections with Staphylococcus aureus isolated from 7.1% of cows.
J L, Watts, J W, Pankey, W M, Oliver, S C, Nickerson, A W, Lazarus   +4 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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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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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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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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Quantification of bovine oxylipids during intramammary Streptococcus uberis infection

Prostaglandins & Other Lipid Mediators, 2015
Streptococcus uberis mastitis results in severe mammary tissue damage in dairy cows due to uncontrolled inflammation. Oxylipids are potent lipid mediators that orchestrate pathogen-induced inflammatory responses, however, changes in oxylipid biosynthesis during S. uberis mastitis are unknown.
V E, Ryman, G M, Pighetti, J D, Lippolis, J C, Gandy, C M, Applegate, L M, Sordillo   +5 more
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Patterns of nonclinical intramammary infection in a ewe flock

Journal of the American Veterinary Medical Association, 1986
SUMMARY Coagulase-negative staphylococci were the most frequent bacterial isolates from nonclinical intramammary infections (nimi) in a ewe flock. The prevalence of nimi was 22.9 % of the udder halves at lambing and decreased to 12.5% or less between week 2 and week 6 of lactation.
W D, Hueston, N R, Hartwig, J K, Judy
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Intramammary Coliform Infection After Heavy External Contamination of Teats

American Journal of Veterinary Research, 1980
SUMMARY Teats of lactating dairy cows were exposed to massive, repeated external contamination by application of a freshly prepared broth culture of Escherichia coli that was maintained in wet contact with the teat ends during 14 or 21 successive entire intermilking periods. When contamination was restricted to the intermilking periods by dipping teats
W D, Schultze, P D, Thompson
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Intramammary antibiotic treatment at the end of lactation for prophylaxis and treatment of intramammary infections in ewes

Journal of the American Veterinary Medical Association, 1989
Summary Ewes treated by intramammary infusion of cephapirin benzathine at the end of lactation were less likely to develop new intramammary infections by early in the next lactation. A controlled clinical trial involving 135 treated ewes and 145 untreated control ewes evaluated the prophylactic and treatment efficacy of intramammary antibiotic ...
W D, Hueston, G J, Boner, S L, Baertsche
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