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Correct Answer » A
Explanation
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Ans:A. Brucellosis.
The test shown in the picture above represents milk ring test.
Milk ring test is seen in Brucellosis.
Milk ring test
- A milk test called Brucellosis Ring Test (BRT) is conducted in dairies two to four times a year by testing a small sample obtained from the creamery or farm milk tank for
- Milk from each cow in the herd is pooled and a sample is taken for testing.
- A suspension of killed Brucella organisms is added to a small amount of milk.
- If the test is positive, a bluish ring forms at the cream line as the cream rises.
Brucellosis
- It is a highly contagious zoonosis caused by ingestion of unpasteurized milk or undercooked meat from infected animals, or close contact with their secretions.
