Effects of supplementing microalgae in laying hen diets on productive performance, fatty-Acid profile, and oxidative stability of eggs

T. Ao, L. M. Macalintal, M. A. Paul, A. J. Pescatore, A. H. Cantor, M. J. Ford, B. Timmons, K. A. Dawson

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

The purpose of this trial was to investigate the effects of adding graded levels of dehydrated, whole-cell microalgae (All-G-RichTM, Alltech Inc.) in layer diets on the performance, egg and shell quality, yolk color, oxidative stability, and fatty-Acid concentration of eggs. Six replicate groups of 5 Hy-LineW-36 laying hens were assigned to each of 4 dietary treatments. Treatments consisted of feeding a corn-soybean meal control diet alone or supplemented with 1.0, 2.0, or 3.0% All-G-RichTM during a 32-wk production period. Fatty-Acid content of egg yolk was analyzed after feeding the experimental diets for 4 wk. The docosahexaenoic acid (DHA) content in egg yolk was linearly increased (P < 0.01) with increasing levels of algae in the diet. There was no effect of dietary treatments on production performance of layers in the entire trial period. Egg weight and eggshell quality were not affected by dietary treatments. Supplements of 2 or 3% All-G-RichTM significantly increased redness (a) and decreased lightness (L) of egg yolk. Yolk fatty-Acid oxidation, as measured by thiobarbituric acid reactive substances (TBARS), was not affected by treatments in eggs stored up to 30 d at 4°C. Based on these data, adding All-G-RichTM in layer diets can produce DHA-enriched eggs with no negative impact on egg quality.

Original languageEnglish
Pages (from-to)394-400
Number of pages7
JournalJournal of Applied Poultry Research
Volume24
Issue number3
DOIs
StatePublished - 2015

Bibliographical note

Publisher Copyright:
© 2015 Poultry Science Association Inc.

Keywords

  • DHA
  • egg quality
  • layer hens
  • microalgae
  • performance

ASJC Scopus subject areas

  • Animal Science and Zoology

Fingerprint

Dive into the research topics of 'Effects of supplementing microalgae in laying hen diets on productive performance, fatty-Acid profile, and oxidative stability of eggs'. Together they form a unique fingerprint.

Cite this