CDH26 expression in the bovine small intestine during Cooperia oncophora infection. The expression value at the mRNA level was detected using quantitative RT-PCR. The expression value of the naïve control group was set as 1.0. The fold change (N = 4) were calculated using the 2-ΔΔCT method and normalized against the naïve control group (mean ± SD). CDH26 = cadherin 26.