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l.C. KIM(金益千),T J. KIM(金泰鍾) 한국예방수의학회 1991 예방수의학회지 Vol.15 No.1
Groups of pigs were injected intramuscularly once daily for two days with therapeutic dose of penicillin (3㎎/㎏ Body weight), ampicillin(10㎎/㎏ B.W.) or chloramphenicol (5.5㎎/㎏ B.W.) and killed by stunning 24 hour after the second injection, Samples of gluteus muscle(opposite injection site), kidney, serum and urine were collected when slaughtered and determinded antibiotic residues by microbiological assay. The results were as follows; 1. All samples of muscle, kidney and serum in pigs injected with penicillin, ampicillin or chloramphenicol were found in positive reaction by microbiological assay plate technique. 2. In all pigs injected with penicillin, the antibiotic was present at levels of >0.04㎍/g tissues. 3. In the pigs injected with ampicillin, >0.04㎍/g tissues was found in 3/4 sites; but 5 urine samples were all negative. 4. muscle, kidney and serum have little commercial value samples of them are most suitable for antibiotic assays.
강희정,김익천,김진회,손원근,이두식,Kang, Hee-Jung,Kim, Ik-Chun,Kim, Jin-Hoe,Son, Won-Geun,Lee, Du-Sik 대한수의학회 2001 大韓獸醫學會誌 Vol.41 No.4
Microorganisms were isolated and identified from bovine 296 quarters which showed positive reaction by California Mastitis Test (CMT) in 40 farms of Jeju from September 1999 to June 2000. The organisms associated with the mastitis of bovine were 11 different bacterial species in this study. Which of them, Staphylococcus aureus was the most predominant species as 152 (51.4%) isolates. Other identified species included 49 (16.5%) coliform, 47 (15.8%) Streptococcus dysgalactiae, 15 (5.1%) Bacillus spp., 8 (2.7%) Staphylococcus epidermidis, 6 (2.1%) Streptococcus agalactiae, 5 (1.7%) Enterococcus faecalis, 5 (1.7%) Corynebacterium spp., 3 (1.0%) Streptococcus uberis, 1 (0.3%) Pseudomonas aeruginosa and 1 (0.3%) Pasteurella haemolytica. Almost of all the islolated beacterial species showed high sensitivity against kanamycin (98.6%), cephalothin (98.0%), streptomycin (94.9%), gentamicin (94.6%), ampicillin (92.2%) and polymyxin B (90.2%). On the contrary, they showed resistance against penicillin (47.0%), tetracycline (37.2%), cefazolin (26.0%), bacitracin (22.6%) and erythromycin (19.9%). Eighty-one isolates were not resistant to any antibiotics and 215 drug resistant isolates showed 89 different drug resistance patterns from single to nine multiple antibiotics resistance patterns.