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Which of the following can be identified by milk ring test?

  • A.Brucellosis
  • B.Salmonellosis
  • C.Bovine tuberculosis
  • D.All of these

Answer: A

Correct answer: Brucellosis

The milk ring test detects antibody to Brucella in bulk milk: stained antigen is added and, if antibody is present, the agglutinated complexes rise with the cream to form a coloured ring at the top. It is cheap, rapid and applied to whole herds at once, which makes it the standard screening test for bovine brucellosis - and it works only for that organism.

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