Table 3.

KEGG pathway enrichment analysis of upregulated genes in the uterus of layers.

ID	Pathway terms	Fold Enrichment	Genes
gga00770	Pantothenate and CoA biosynthesis	13.6	GADL1, UPB1, VNN1
gga04261	Adrenergic signaling in cardiomyocytes	3.4	ATP2B2, ATP1B1, ADRB1, PLCB4, CREM, ATP1A1
gga04020	Calcium signaling pathway	2.96	ATP2B2, ADRB1, PLCB4, ATP2A3, ADORA2A, P2RX2, AVPR1A

229 up-regulated genes in the layers (15–20 hours p.o.) were subjected to the DAVID database for pathway enrichment analysis. All the pathways with a modified Fisher Exact P-value < 0.05 and threshold gene count of 2 were considered enriched.