Figure 2From: Evaluation of suitable reference genes for gene expression studies in porcine alveolar macrophages in response to LPS and LTAAverage cycle threshold (Ct) values of candidate reference genes tested in AMs under different conditions. a) The values are the average qRT-PCR cycle threshold numbers (Ct values). The bars indicate standard deviation. Letters indicate a significant difference in average Ct value. Average Ct values that have the same letter are not significantly different (P > 0.05)Back to article page