Effects of carotenoids from lucerne, marigold and tomato on egg yolk pigmentation and carotenoid composition

@article{Karadas2006EffectsOC,
  title={Effects of carotenoids from lucerne, marigold and tomato on egg yolk pigmentation and carotenoid composition},
  author={F. Karadas and Evangelos Grammenidis and Peter F Surai and Thomas Acamovic and N. H. C. Sparks},
  journal={British Poultry Science},
  year={2006},
  volume={47},
  pages={561 - 566}
}
1. The effects of various sources of natural carotenoids (Px alfalfa concentrate, tomato powder and marigold extract) as feed additives in quail diets on egg yolk pigmentation and carotenoid composition were investigated. 2. Adult Japanese quail were fed one of 5 different diets for 23 d: three diets each contained Px alfalfa concentrate (PX) or tomato powder (TP) or marigold extract (MG), one diet contained marigold extract and tomato powder (MG + TP) and a control diet (wheat/barley based… 
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Dietary supplementation of marigold extract significantly increased the yellowness values of carcass, antioxidant capacity and meat quality in broiler chickens and no significant effect on growth performance was found.
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The present study investigated the effect of 1 and 2% feed supplementation with biomass of Chlorella grown through heterotrophic fermentation on the concentration of total and individual carotenoids in egg yolks and found no differences among laying hens in plasma concentrations of triacylglycerol and cholesterol.
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