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bovis shows a dysgonic colony shape on Lowenstein-Jensen medium, is negative for niacin accumulation and nitrate reduction, is susceptible to thiophene-2-carboxylic acid hydrazide (TCH), and shows microaerophilic growth on Lebek medium (1-3).
bovis shows dysgonic growth on Lowenstein-Jensen (LJ) medium and has been described as negative for nitrate reduction and niacin accumulation (2).
Subcultures remained negative on L6wenstein-Jensen slants but after approximately 4 weeks became positive on mycobactin-supplemented Middlebrook slants with colorless dysgonic colonies.