Step 1: Understanding the Concept:
Aerobic spore formers can cause specific defects in milk.
Each defect is associated with a particular organism.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the defects caused by spore formers.
Step 3: Detailed Explanation:
Bitty cream is a well-known effect of aerobic spore formers.
It is caused by Bacillus species.
Gas production is caused by coliforms.
Ropiness is caused by Alcaligenes.
Fruity flavour is caused by Pseudomonas fragi.
Thus, bitty cream is the correct answer.
Step 4: Final Answer:
Bitty cream is caused by aerobic spore formers.
Hence, the correct option is (C).
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