가축 유래 staphylococcus aureus의 enterotoxin 산생과 plasmid profile에 관한 연구 I. 가축 및 집합유로부터 staphylococcus aureus의 분리 및 분리주의 coagulase형

Enterotoxin Production and Plasmid Profiles of Staphylococcus aureus Isolated from Domestic Animals I. Isolation of Staphylococcus aureus from Bulk Milk and Domestic Animals, and Coagulase. Types of Isolates

In order to know the prevalence of Staphylococcus aureus in bulkand domestic animals, attempts were made to isolate the organisms from 593 samples. Also examined were the biochemical properties and the coagulase types of the isolates. Overall, S. aureus were present in 43.4% of poultry meat samples, 24.6% of bulk milk and 15.5% of pork, The incidence of S. aureus isolated from the body skin and the nasal cavity of cattle and pigs were 11.3%, 14.9% 21.9% and 44.4%, respectively. The majority of biochemical and cultural properties of the S. aureus isolates were identical to those of the standard strains. Particlarly, β-homolysis was common in the organisms isolated from bulk milk and pigs, while α-hemolysis was common from Korean native cattle and poultry meat. Most isolates(86.0%) produced one or more coagulase types. Only the mixed type ⅡㆍⅢ was detected in the organisms isolated from poultry meat and type Ⅱ and Ⅶ were most common in other samples.