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Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2003;16(12): 1770-1776.
DOI: https://doi.org/10.5713/ajas.2003.1770    Published online January 1, 2003.
Effect of Dietary Glutamine Supplement on Performance and Intestinal Morphology of Weaned Pigs
Der-Nan Lee, Yeong-Hsiang Cheng, Fu-Yu Wu, Hiroyuki Sato, Izuru Shinzato, Shih-Ping Chen, Houng-Ta Yen
Two experiments were conducted to investigate the effect of dietary glutamine (Gln) supplement on the performance and villus morphology of weaned pigs. In Exp. 1, 48 pigs were fed diets supplemented with 0, 0.5, 1.0, or 1.5% Gln for 28 days. Dietary Gln supplemented levels did not influence performance and plasma Gln concentration of weaned pigs. In Exp. 2, 48 weaned pigs were fed the same treatment diets of Exp. 1 for 7 or 14 days. Dietary Gln supplement reduced the ratio of small intestine weight to empty carcass weight at d 14 postweaning. However, the villus height and villus height/crypt depth ratio at the duodenum were increased. IgA and protein in the bile from d 7 and d 14 postweaning were higher in the pigs fed the diet supplemented with 0.5% Gln. Plasma IgA concentration was not influenced by dietary Gln levels. In conclusion, dietary Gln supplement might benefit the development of the small intestine and bile IgA production in weaned pigs.
Keywords: Glutamine; Weaned Pigs; Intestinal Morphology; Performance

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