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Abstract

The study was conducted to investigate isolation and antimicrobial drug susceptibility of mastitic pathogens from 610 dairy cattle (897 quarters) of 36 dairy farms in Korea Republic (March 1999 to August 2002). Isolation rate of posterior 2 quarters was higher than the anterior 2 quarters....

Author(s)
Kim ChungHui; Kim GonSup; Heo JungHo; Jung MyungHo; Kim KukHun; Cho MyungHeui; Lee KukCheon; Ryu JaeDoo; Hah DaeSik; Kim JongShu
Publisher
Korean Society of Veterinary Clinics, Daegu, Korea Republic
Citation
Journal of Veterinary Clinics, 2003, 20, 2, pp 177-184
Abstract

Staphylococcus aureus belongs to the group of major contagious mastitis pathogens, whereas the coagulase-negative staphylococci (CNS) are also capable of causing opportunistic bovine mastitis. Many of these strains are resistant to penicillin or ampicillin because of the long-term use of β-lactam...

Author(s)
Moon, J. S.; Lee, A. R.; Kang, H. M.; Lee, E. S.; Kim, M. N.; Paik, Y. H.; Park, Y. H.; Joo, Y. S.; Koo, H. C.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2007, 90, 3, pp 1176-1185
Abstract

We investigated antibiogram and coagulase gene diversity in staphylococcal enterotoxin (StE)-producing Staphylococcus aureus isolated from raw milk samples of cows infected with mastitis from 140 dairy farms in Korea between 1997 and 2004. Of the 696 Staph. aureus isolates collected in this study,...

Author(s)
Moon, J. S.; Lee, A. R.; Kang, H. M.; Lee, E. S.; Joo, Y. S.; Park, Y. H.; Kim, M. N.; Koo, H. C.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2007, 90, 4, pp 1716-1724
Abstract

Of 1589 and 1269 milk samples taken from bulk milk received at a dairy factory in the Chungnam area in Jan. 1984 and July 1985, 46.9 and 65.6%, resp., had somatic cell counts <200 000/ml and 12.7 and 7.0% had counts >500 000/ml. Mastitis bacteria isolated from the samples (291 isolates) were...

Author(s)
Kang, I. S.; Park, S. Y.; Kim, J. H.; Kwon, H. G.; Kyung, C. H.
Citation
Korean Journal of Dairy Science, 1986, 8, 4, pp 236-242
Abstract

The growth of 261 staphylococcal isolates from mastitic milk was inhibited by cloxacillin and methicillin at a minimum inhibitory concentration (MIC) of 0.78 µg/ml and by gentamicin at a MIC of 1.56 µg/ml. In the starch-iodine test, positive reactions for penicillinase production were given by 99...

Author(s)
Park, C. K.
Citation
Korean Journal of Veterinary Research, 1984, 24, 2, pp 163-168
Abstract

Bacteriological examination of 285 quarter milk samples from 137 cows in 41 herds in Gyeonggi Province in 1975 showed that mastitis infections were higher in Aug. than in other months. 31% of quarters were infected with acute mastitis, 67% with chronic mastitis and 1.78% were infected before...

Author(s)
Shon, B. W.; Chung, K. S.
Citation
Korean Journal of Animal Science, 1978, 20, 3, pp 227-232
Abstract

119 raw bulk milk samples from 10 dairy farms contained a mean of 132 000 total bacterial counts/ml; 68% of the samples contained <100 000 bacteria/ml. Numbers of bacteria increased during summer months. Of 739 quarter milk samples from 186 cows in 14 herds examined for mastitis, 195 quarters...

Author(s)
Na, J. S.; Kang, B. K.
Citation
Korean Journal of Veterinary Research, 1975, 15, 1, pp 83-91

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