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Glutamine supplementation to diets of 21-day old pigs
| dc.creator | Meier, Sabina Ann | |
| dc.date.accessioned | 2012-06-07T22:41:46Z | |
| dc.date.available | 2012-06-07T22:41:46Z | |
| dc.date.created | 1995 | |
| dc.date.issued | 1995 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1995-THESIS-M453 | |
| dc.description | 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. | en |
| dc.description | Includes bibliographical references. | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | 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) the plasma concentrations of aspartate, valine and taurine, but had no effect (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 < .01) was found for LPD and a quadratic age effect (P<.Ol)for villus height. Supplemental GLN did not affect (P>,IO)VHorLPD in the duodenum, but prevented (P < IO) VH atrophy in the jejunum on d 7 (358 vs. 27011m). Experiment 4 was conducted to determine if dietary free GLN would pass through the stomach intact. Pigs fitted with a T-cannula in the mid-duodenum were used to collect digesta leaving the stomach. The basal com-skim milk-soybean meal diet from Exp. 2 was used with 0 or 1.0% GLN. Free GLN levels were higher (P <.001) in the duodenal digesta from pigs fed 1.0% GLN (1.49 vs. .19% of dry matter) but glutamic acid concentrations were similar (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. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | nutrition. | en |
| dc.subject | Major nutrition. | en |
| dc.title | Glutamine supplementation to diets of 21-day old pigs | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | nutrition | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
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