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Sheep Blood Agar

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1. 5% Sheep blood agar media – is an enriching as well as differential media .Sheep blood agar was used to differentiate between the Gram positive Cocci that would grow in the media. Streptococcal species will produce substances that will destroy red bloods cells that will cause hemolysis of the blood on the ager plates. Staphylococci species will display a light to golden yellow pigment indicating differentiate If gram positive Cocci samples collected is Streptococci or Staphylococci species.
2. MacConkey agar- is both selective and differential media; it can be selective for Gram negative and differentiate those bacteria that have the ability to ferment lactose like coliforms. It inhibits most Gram- positive bacteria except for Enterococcus

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