Abstract
Eighty-three strains of Staphylococci isolated from skin of 30 healthy piglets of SPF swine farm and 76 strains isolated from that of 30 piglets of a conventional swine farm were subjected to identification of species and drug sensitivity test with agar dilution method. S. hominis and S. haemolyticus shared the majority of the strains isolated from the materials of both farms. There were hardly any differences noted in the bacterial species between both farms. More than 4 times higher values of 50% MIC were found out in the Staphylococci isolated from the conventional swine farm than that of the SPF swine farm in KM, CTC, and CP in the drug sensitivity test.