Figure 3From: Differential expression of CXCR1 and commonly used reference genes in bovine milk somatic cells following experimental intramammary challengeGene expression stability of candidate reference genes in milk somatic cells analysed using Normfinder software. Intergroup variation (+ intragroup variation) of expression of 8 candidate reference genes in milk somatic cells isolated from quarters inoculated with PBS (n = 8) or Staphylococcus chromogenes (n = 8) of 8 dairy heifers. Candidate reference genes are ranked on gene expression stability (ρ) calculated using Normfinder [16] with most stable genes on the right side (smallest inter- and intragroup variation).Back to article page