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. 2022 Jan 18;18:43. doi: 10.1186/s12917-022-03144-4

Fig. 1.

Fig. 1

Standard curves of the multiplex qRT-PCR. The triplicate standard curves indicated a linear correlation between the logarithm of the copy number and the Ct values. The concentrations of the standard plasmids (p-ASFV, p-CSFV and p-APPV) ranged from 2.52 × 108 to 2.52 × 100 copies/μL (5.04 × 108 to 5.04 × 100 copies per reaction)