Response of rainbow trout to source and level of supplemental dietary methionine
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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.
| 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 |
| Google Analytic Metrics | Metrics page |