Research Article
Stress-Related Gene Expression in Liver Tissues from Laying Hens Housed in Conventional Cage and Cage-Free Systems in the Tropics
Figure 3
Relative gene expression in the liver tissue of laying hens at 60 wk and 80 wk of age. (a) SREBF1 mRNA levels and (b) FXR mRNA levels; CC: conventional cage production system and CF: cage-free production system. The actin beta (ACTB) gene was used as a reference gene. .
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