Comparative utilization of d- and l-methionine by the white pekin duckling (Anas platyrhynchos)

Robert Glenn Elkin, M. L. Lyons, J. C. Rogler

Research output: Contribution to journalArticle

3 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)325-329
Number of pages5
JournalComparative Biochemistry and Physiology -- Part B: Biochemistry and
Volume91
Issue number2
DOIs
StatePublished - Jan 1 1988

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Methionine
Birds
Nutrition
Diet
Sulfur Amino Acids
Liver
Zea mays
Weight Gain
Meals
Oxidoreductases
Kidney
Plasmas
Amino Acids

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Physiology
  • Molecular Biology

Cite this

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Comparative utilization of d- and l-methionine by the white pekin duckling (Anas platyrhynchos). / Elkin, Robert Glenn; Lyons, M. L.; Rogler, J. C.

In: Comparative Biochemistry and Physiology -- Part B: Biochemistry and, Vol. 91, No. 2, 01.01.1988, p. 325-329.

Research output: Contribution to journalArticle

TY - JOUR

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AB - 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.

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