AMP	Adenosine 5′-monophosphate
cGMP-PKG	Cyclic guanosine monophosphate-protein kinase G
CE	Collision energy
D	Duck egg
DW	Duck albumen
DY	Duck egg yolk
DP	Declustering potential
FC	Fold change
H	Chicken egg
HMDB	Human Metabolome Database
HW	Chicken albumen
HY	Chicken egg yolk
IMP	Inosine-5′-monophosphate
KEGG	Kyoto Encyclopedia of Genes and Genomes
LC-MS	Liquid chromatograph-mass spectrometer
LC-MS/MS	Liquid chromatography-tandem mass spectrometry
MRM	Multiple reaction monitoring
PCA	Principal component analysis
PLS-DA	Partial least-squares discriminant analysis
Q	Quail egg
QW	Quail albumen
QY	Quail egg yolk
RT	Retention time
VIP	Variable important in projection