larvae were studied. Six experimental diets containing different levels of Ala-Gln 0.125% were randomly assigned to triplicate groups of 1 000fish for 8 weeks. Water temperature was at 7-10 and dissolved oxygen value was maintained higher than 7.8 mg/L. Glutamine and glutamic acid contents of intestine increased significantly by adding Ala-Gln）K^{），P））Hucho taimen larvae can be improvedtaimen larvae can also be improved by adding Ala-Gln in the feeds.}