Our Industry Today: Deoxyribonucleic Acid Fingerprinting of Staphylococcus aureus From Heifer Mammary Secretions and from Horn Flies

摘要

Staphylococcus aureus isolated from heifer mam- mary secretions, streak canals, and horn flies (Hae- matobia irritans) were evaluated by randomly ampli- fied polymorphic DNA fingerprinting. The relationship between DNA fingerprint patterns of S. aureus isolated from horn flies and S. aureus isolated from heifer mammary glands was examined. Ampli- fied DNA fragments were visualized by agarose gel electrophoresis and were analyzed by densitometry. Analysis of DNA fingerprint patterns of 56 S. aureus Isolates that were obtained from heifer mammary Secretions or streak canals resulted in three distince Subtypes of S. aureus.