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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

The combined effects of EDTA-Tris and eighteen antimicrobial agents have been evaluated in eight clinically isolated methicillin-resistant bacteria (Staphylococcus aureus, Escherichia coli, Streptococcus uberis and Streptococcus agalactiae) from bovine mastitis. The antimicrobial activity was...

Author(s)
Yoo JongHyun; Park HeeMyung
Publisher
Korean Society of Veterinary Clinics, Seoul, Korea Republic
Citation
Journal of Veterinary Clinics, 2008, 25, 5, pp 346-354
Abstract

Causative agents of mastitis were isolated from glandular udder tissues of 101 culled Holstein cows and tested with antimicrobials using the standardized disc diffusion method. Pathogens most commonly isolated were coagulase-negative staphylococci (43.9%) and streptococci (21.4%). Most of the...

Author(s)
Kim HyeRa; Lee JeongChi; Kim SangKi; Yoon ByeongCheol; Seo KyeWon; Lee ChungGil; Lee ChaiYong
Publisher
Korean Society of Veterinary Clinics, Daegu, Korea Republic
Citation
Journal of Veterinary Clinics, 2004, 21, 2, pp 129-132
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
Abstract

Of 128 strains of coagulase-positive staphylococci isolated from cows with subclinical mastitis, 87 and 77 could be typed by the human and bovine phage sets respectively, and 35 and 40 of these typable strains were lysed by phages from >1 group. Of the strains lysed by a single group of the...

Author(s)
Lee, H. S.; Seok, H. B.; Jeon, K. H.; Kang, Y. B.
Citation
Research Reports of the Office of Rural Development, Veterinary, 1973, 15, pp 31-38
Abstract

835 quarter milk samples from 212 cows in 14 herds were examined; 358 (42.9%) quarters and 149 (70.3%) cows were infected, 11 of these quarters having clinical and the rest subclinical infections. Streptococcus agalactiae was isolated from 62 quarters, Str. dysgalactiae from 12, Str. uberis from 5, ...

Author(s)
Chang Kook Cheong; Hong Ryul Han; Gill Taik Chung
Citation
Korean Journal of Veterinary Research, 1970, 10, 1, pp 39-45

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