Modulatory Effect of Monochromatic Blue Light on Heat Stress Response in Commercial Broilers

Figure 4

Variations of SOD and CAT antioxidant enzyme activities could be predicted from their respective gene expression. The relative gene expression levels of antioxidant enzymes SOD and CAT in Ross and Cobb in the three groups, blue light (B), heat stressed with white light (H + W), and heat stressed with blue light (H + B) compared to the control group which kept at 24°C and white light. Two housekeeping genes (β-actin and GAPDH) were used to normalize the gene expression level. The expression levels were presented as log2 fold change and shown in the figure as mean ± SEM. , , and in (a) and (b) denote statistical significance (two-way ANOVA) with a , , and , respectively. (c) represents regression analysis of the association between antioxidant enzyme activities and their gene expressions. The analysis was performed at 90% confidence level. The values are shown. , , and denote statistical significance at , , and , respectively.

(a)

(b)

(c)