Marigold flowers represent one of the richest natural sources of lutein.
The concentration of lutein and zeaxanthin in hens and embryonic tissue is associated with increased resistance to oxidative stress and decreased lipid oxidation. Lutein in hens' diets has also been shown to affect the immunocompetence of chicks. In songbirds, dietary lutein and zeaxanthin in mothers have been shown to significantly improve egg hatchability and progeny survivability.
For a desirable chicken skin and egg yolk colour, a mixture of yellow and red xanthophylls is recommended. The main carotenoids are lutein, zeaxanthin, and apo-ester (yellow carotenoids), as well as canthaxanthin and capsanthin (red carotenoids). These can be blended to produce a wide range of yolk colours at lower total xanthophylls levels than feeding yellow supplements alone. However, if exclusively red carotenoids were used, a pinkish yolk would result. Therefore, it is important to get the right combination, and the xanthophylls present in the feed ingredients should also be taken into account.
Lutein and zeaxanthin are frequently used in feed for canaries and other songbirds, giving feathers a wide range of shades from bright yellow to orange-red.
Feed additive, category: carotenoids and xanthophylls
WELDING supplies lutein products Nature Yellow Y-15, Nature Yellow Y-20 and Nature Yellow Y-50 from a qualified Chinese manufacturer.
Welding GmbH & Co. KG is not the manufacturer of the product. All product information and analytical data serves only as a product description and has been provided to us by the manufacturer. It may not be interpreted as a guarantee of special properties or a guarantee of suitability for specific purposes. The customer is required to examine the suitability of the product for the intended purpose himself/herself before use.
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