Response to dietary l-glutamine supplementation in weaned piglets : A serum metabolomic comparison and hepatic metabolic regulation analysis
A novel metabolomic method based on gas chromatography-mass spectrometry was applied to investigate serum metabolites in response to dietary Gln supplementation in piglets. Sixteen, 21-d-old pigs were weaned and assigned randomly to 2 isonitrogenous diets: 1) Gln diet, which contained 1% L-Gln (as-fed basis), and 2) control diet, which contained LAla to make this diet isonitrogenous with the Gln d
