J. Appl. Poult. Res.
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J APPL POULT RES 2003. 12:24-26
© 2003 Poultry Science Association
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Research Reports

Vitamin Enrichment of Eggs

S. Leeson and L. J. Caston

Department of Animal & Poultry Science, University of Guelph, Guelph, Ontario Canada N1G 2W1

Correspondence: S. Leeson, E-mail: SLeeson{at}uoguelph.ca

Layers were fed diets with regular or 3 to 10 times more supplemental vitamins in an attempt to enrich eggs with these nutrients. Dietary concentrations of vitamins were chosen with the expectation of producing an egg with sufficient vitamins to achieve 50% of daily recommended intake (DRI). Eggs were assayed for all vitamins following a 90-d feeding period. There was considerable variation in egg vitamin enrichment. Only for biotin, vitamin B12, and vitamin K was ≥50% DRI achieved with one egg. Egg content of niacin, thiamine, and pyridoxine were insensitive to diet manipulation.

Key Words: egg • vitamin






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