I'd say it depends why you're looking for an alternative. If you are looking to avoid the use of animal based products, you could try to find human blood agar. If you just want to find something other than sheep you could look for horse, goat, or bovine based blood agar.
in the fridge
No it does not pit blood agar I am curently studying Chromobcaterium violaceum and recently grew it on a sheep blood agar it did not pit it. Cv turned the agar a brown color.
Sheep blood agar inhibits gram negative bacteria. E. coli is gram negative.
Sheep blood agar is a base medium like nutrient agar, but with the addition of 5% sheep blood. The blood acts as an enriching ingredient for fastidious bacteria that require additional nutrients to grow. It is commonly used in microbiology laboratories to culture and identify various bacteria based on their hemolytic patterns.
Many pathogens either fail to grow entirely or exhibit morphologies and hemolytic patterns on human blood agar that confound colony recognition. Availability of sheep blood is one reason (Need not to take consent to draw blood). Safety (free from HIV, HBV or HCV like organisms), another important reason. Blood from specially breed sheep for microbiological purpose are free from antibiotics which interrupt the growth of bacteria. Because of hemolysis which occur more frequently than to other animals blood, may be a reason but, not sure.
Blood agar is the agar most often used for throat cultures. It contains nutrients for bacterial growth and sheep's blood, which allows for the detection of hemolysis patterns that can help identify certain pathogens.
In blood agar, the substrate is typically a base medium such as tryptic soy agar or nutrient agar that is enriched with sheep or horse blood. This enriched medium provides essential nutrients and growth factors for a wide variety of bacteria. The blood also allows for the observation of hemolytic activity, as some bacteria can lyse red blood cells and change the appearance of the agar around their colonies.
It depends on the type of blood agar you are using. Blood agar generallly means whatever agar you are using + 5-10% of some type of mammalian blood (sheep, horse, rabbit, etc). I generally use TSA + 5% Sheep blood or Brucella Agar + 5% Horse blood, for instance.
Some gelatin alternatives that can be used in recipes include agar-agar, pectin, carrageenan, and tapioca starch.
Some vegan gelatin alternatives that can be used in recipes include agar-agar, carrageenan, and pectin.
Thayer-Martin agar is a selective agar medium commonly used for the growth of Neisseria meningitidis. It contains antibiotics that inhibit the growth of competing bacteria, allowing N. meningitidis to grow. Additional supplements like blood or chocolate agar may also be used to enhance the growth of this bacterium.
The medium commonly used to culture bacteria suspected to be Streptococcus is called blood agar. It provides essential nutrients for bacterial growth and typically contains sheep's blood, which can help identify different hemolytic patterns produced by Streptococcus species.