The substitution of synthetic sources of carotenoids in mixed feed for hens

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F13%3A%230001817" target="_blank" >RIV/00027014:_____/13:#0001817 - isvavai.cz</a>
Result on the web
<a href="http://www.vuzv.cz/sites/File/_privat/13046.pdf" target="_blank" >http://www.vuzv.cz/sites/File/_privat/13046.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The substitution of synthetic sources of carotenoids in mixed feed for hens
Original language description
ISA Brown hens were fed diets supplemented with the synthetic carotenoids Carophyll Red and Carophyll Yellow at 20 and 15 mg/kg, respectively; lutein at 250 mg/kg; and the algae Chlorella at 12.5 g/kg. The synthetic carotenoids, lutein and Chlorella significantly increased egg weight and shell weight and thickness and decreased the yolk/albumen ratio of the eggs. Lutein but not the Carophylls or Chlorella significantly increased the shell breaking strength. Furthermore, the carotenoids and Chlorella significantly increased yolk color, and the yolk redness increased significantly in the following order: control, Chlorella, Carophyll and lutein. Lutein and Chlorella increased the yellowness of the yolks. Supplementation of feed with lutein and Chlorellasignificantly increased the concentration of lutein and zeaxanthin in the yolks.
Czech name
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Czech description
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Project
<a href="/en/project/QJ1310002" target="_blank" >QJ1310002: Identification and solution of selected problems in hens nutrition and egg quality from contrast housing</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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