Slime production by Staphylococcus aureus strains isolated from cases of bovine mastitis.

The objective of the present research was to determine the frequency of slime production by Staphylococcus aureus strains recovered from bovine mastitis and comparison of slime formation frequency, depending on the determination procedure employed. The investigations embraced 59 Staphylococcus aureus strains obtained from the inflammatory secretion of mammary glands of 45 cows. Slime production was determined using Christensen method and Congo red agar (CRA) method. Out of the 59 S. aureus isolates, 47.45% produced slime as shown by Christensen method and 42.37% by the CRA method. However, 7 strains (11.86%) demonstrated slime production ability only when tested by the Christensen method, whereas 4 strains (6.77%) only using the CRA method.