Diagnosis of bovine tuberculosis by means the comparative test which implies a single injection of Avian PPD Tuberculin and a single injection of Bovine PPD Tuberculin, administered simultaneously.
Purified protein derivative of Mycobacterium avium, subsp. avium strain D4 ER. (25.000 IU/ml). Contains phenol and Ponceau Red (E 124).
Pack of 10 x 50 doses.