Glutamine supplementation to diets of 21-day old pigs

Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item.Includes bibliographical references.Issued also on microfiche from Lange Micrographics.Five experiments were conducted to determine the effects of supplemental free Lglutamine (GLN) on growth performance, intestinal morphology and recovery of GLN in duodenal digesta in the 21-d old pig. In Exp. I and 2, supplementing either corn-soybean meal or com-dried skim milk-soybean meal diets with up to 1% GLN did not affect performance during the 21-d postweaning period, or during the subsequent 21-d period when pigs were not fed supplemental GLN. In Exp. 1, GLN increased (P .05) on those of other amino acids. In Exp. 3, pigs were fed the corn-soybean basal diet used in Exp. I with 0 or 1.0% GLN added. Five pigs were sacrificed at d 0, 7 or 14 postweaning to determine average villus height (VH) and lamina propria depth (LPD) in the duodenum and jejunum. A linear age effect (P ,IO)VHorLPD in the duodenum, but prevented (P .10) between diets. Experiment 5 was designed to determine if up to 5.0% GLN would affect intestinal morphology in 21-d old pigs fed the corn-soybean meal diet in Exp. 1. Supplemental GLN did not affect VH or LPD over the 14-d period. These studies indicate that GLN is not significantly hydrolyzed to glutamic acid in the piglet's stomach, appears to have a beneficial effect on villus height postweaning but does not affect growth performance