| REPC | rumen epithelial primary cell |
| SCFAs | short-chain fatty acids |
| HDAC | histone deacetylase |
| HDACi | histone deacetylase inhibitor |
| H3K27ac | histone H3 lysine 27 acetylation |
| IGV | integrative genomics viewer |
| DEG | differentially expressed gene |
| GSEA | gene set enrichment analysis |
| PPI | protein–protein interaction |
| TSS | transcription start site |
| TES | transcription end site |
| SE | super-enhancer |
| HAT | histone acetyltransferase |
| DHG | differentially H3K27ac-modified gene |
| TPM | transcripts per million |
| hUP-gUP | H3K27ac-gain and up-regulated DEG expression |
| hDN-gDN | H3K27ac-loss and down-regulated DEG expression |
| MAPK | mitogen-activated protein kinase |