Figure 3. A, Molecular mass of total DNA extracted from animal feed grade avoparcin. M: 1 kb plus DNA ladder (Invitrogen, Burlington, Ontario, Canada). Lane 1: sample of total DNA extracted from animal feed–grade avoparcin. B, Polymerase chain reaction amplification of partial 16S rDNA (1051 bp) with primers 16S 440F and 16S 1491R. M:1 kb plus DNA ladder. Lane 1: DNA extracted from animal feed grade avoparcin. Lane 2: DNA of the avoparcin producer Amycolatopsis coloradensis NRRL 3218.
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