Cultures on blood agar plates from ordinary milk usually give rise to colonies of streptococci that do not cause any hemolysis, but the injection of rabbits and other animals with milk “slime” ...

Staphylococcus aureus is capable of fermenting mannitol (left side of left plate) while Staphylococcus ... ingredient in this agar is bile, which inhibits the growth of Gram-positives other than ...