Table 4.

LC–MS identified (acetonitrile precipitation) differentially regulated polar metabolites in grazing and non-grazing animals.

Metabolomic pathway	Compound name	Adduct	Fold change	log2(FC)
Amino acid	Leucyl-Leucine	[M + H]+	0.135	− 2.885
Amino acid	Tyrosyl-Threonine	[M −H ]−	6.124	2.611
Amino acid	Histidinyl-Cysteine	[M + H]+	4.180	2.031
Amino acid	Threoninyl-Aspartate	[M + H]+	0.248	− 1.984
Carbohydrate	Fucose 1-phosphate	[M + H]+	0.261	− 1.899
Purine metabolism	1-Methyladenine	[M − H]−	3.476	1.738
Amino acid	Isoleucyl-Hydroxyproline	[M + H]+	0.293	− 1.717
Amino acid	l-Cysteine	[M − H]−	3.082	1.591
Amino acid	Aspartic acid	[M + H]+	2.998	1.581
Amino acid	Glutaminyl valine	[M + H]+	2.912	1.549
Amino acid	Arginyl arginine	[M + H]+	0.378	1.535
Carbohydrate	l-arabinose	[M + H]+	0.405	− 1.250
Carbohydrate	Ribose 1,5-bisphosphate	[M + H]+	0.454	− 1.130
Amino acid	Serylmethionine	[M + H]+	2.032	1.102
Amino acid	Glycyl-glycine	[M − H]−	2.021	1.015
Amino acid	5-Hydroxylysine	[M + H]+	1.976	0.978
Amino acid	Aspartyl-Tyrosine	[M + H]+	0.516	− 0.834
Amino acid	Threoninyl-Proline	[M − H]−	1.706	0.760
Amino acid	Selenocysteine	[M − H]−	1.667	0.752
Amino acid	Glycyl-Arginine	[M + H]+	0.650	− 0.704
Amino acid	Leucyl-Histidine	[M − H]−	0.689	− 0.572
Amino acid	l-Proline	[M + H]+	1.432	0.516