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Fig. 3 | BMC Veterinary Research

Fig. 3

From: Development and application of a baculovirus-expressed capsid protein-based indirect ELISA for detection of porcine circovirus 3 IgG antibodies

Fig. 3

Determination of cut-off value for PCV3 Cap ELISA. Cut-off values were evaluated by testing 48 negative control sera. Each value represented the mean absorbance at 450 nm obtained from three replicates of each serum sample tested. The cut-off value was defined as mean OD value of all tested negative control sera, plus three standard deviations. The cut-off value (0.541) was represented by dashed lines. Error bars indicated mean and SD

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