Abstract
Abstract 1. Avorophyll, a product derived from the petals of marigold (Tagetes erecta), was tested for its pigmenting ability in a layers diet in added quantities of 0, 102, 159, 250, 364, 523 and 750 mg/kg. 2. Food intake, egg production and egg weight were measured. Yolk colours were compared with the Hoffman‐La Roche yolk colour fan by a panel of 10 persons on 4 occasions with intervals of 19, 14, 14 and 10 d. 3. Avorophyll had a pigmenting ability for egg yolks but the intensity was 2 to 4 points less on the colour scale fan than calculated on the basis of the pigment content of the diets. 4. Selected panel members showed a high degree of stability in colour discrimination when visually scoring the egg yolks with the colour fan.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
