AASL	Angelica membranaceus stem and leaf–Astragalus sinensis stem and leaf mixture
ADG	Average daily gain
IgA	Immunoglobulin A
PLS-DA	Partial least squares discriminant analysis
AMSL	Astragalus membranaceus stem and leaf
T-AOC	Total antioxidant capacity
LDH	Lactate dehydrogenase
LYM	Lymphocyte count
ASSL	Angelica sinensis stem and leaf
MDA	Malondialdehyde
Gran	Granulocyte count
OTUs	Operational taxonomic units
IgG	Immunoglobulin G
SCFAs	Short-chain fatty acids
SOD	Superoxide dismutase
PCA	Principal component analysis
IgM	Immunoglobulin M
TNF-α	Tumor necrosis factor-alpha
VIP	Variable importance in projection
WBC	White blood cell count