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Response of rainbow trout to source and level of supplemental dietary methionine

Comparative Biochemistry and Physiology, Part A: Physiology

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https://doi.org/10.1016/0300-9629(86)90720-6

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Abstract

1. Methionine and total sulfur amino acid (TSAA) requirements of rainbow trout (Salmo gairdneri) were investigated by feeding graded isosulfurous levels of l- and dl-methionine, l-cystine, and the free acid and calcium forms of methionine hydroxy analog (MHA).

2. Added cystine did not promote growth, survival or prevent cataracts.

3. l-methionine produced fastest growth, followed by dl-methionine, CaMHA and free acid MHA.

4. Trout fed CaMHA gained 85.7 and 92.3% as much as those fed l-methionine and dl-methionine.

5. Within each experiment, the level of L-methionine isomer that prevented cataracts was constant (1.86 g/100g protein in experiment (1), 1.45 in experiment (2) and was lower than for maximum growth (2.89 and 2.15 g) regardless of methionine source.


Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Response of rainbow trout to source and level of supplemental dietary methionine
Series title:
Comparative Biochemistry and Physiology, Part A: Physiology
DOI:
10.1016/0300-9629(86)90720-6
Volume:
83
Issue:
4
Year Published:
1986
Language:
English
Publisher:
Elsevier
Contributing office(s):
Leetown Science Center
Description:
6 p.
First page:
739
Last page:
744