Abstract
1. 1. White Pekin ducklings (Anas platyrhynchos) were fed a sulfur amino acid-deficient corn-peanut meal basal diet supplemented with either d- or l-methionine (MET) at levels of 0,0.04, 0.08, or 0.16%. 2. 2. Although liver and kidney d-amino acid oxidase activities were induced in birds fed d-MET, their weight gains were only approximately 78% of those fed l-MET at each level of supplementation. 3. 3. Ducklings fed the basal diet supplemented with 0.08 or 0.16% d-MET had significantly (P<0.05) higher plasma MET levels than birds fed an equimolar amount of l-MET. 4. 4. It was concluded that d-MET was a less efficacious source of dietary MET activity than l-MET for White Pekin ducklings.
Original language | English (US) |
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Pages (from-to) | 325-329 |
Number of pages | 5 |
Journal | Comparative Biochemistry and Physiology -- Part B: Biochemistry and |
Volume | 91 |
Issue number | 2 |
DOIs | |
State | Published - 1988 |
All Science Journal Classification (ASJC) codes
- Biochemistry
- Physiology
- Molecular Biology