Fig. 4

The transcriptome alterations in the gut and magnum of hens are related to substance transport and immunity. PCA of the magnum (a) and gut (d) in the transcriptome. Scatterplot showing DEGs of magnum (b) and gut (e) in the BC group compared with the CON group. Top 30 enriched GO terms with rich factors (the DEG number/total gene number in the term) in the BP category for up-regulated DEGs in the magnum (c) and gut (f) of hen transcriptome. n = 5. CON, control group with their hens fed basic diet; BC, experimental group with their hens receiving a basal diet supplemented with β-carotene.