Effect of dietary fat on the content of vitamins and carotenoids in egg yolks
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F19%3AN0000055" target="_blank" >RIV/00027014:_____/19:N0000055 - isvavai.cz</a>
Result on the web
<a href="https://vuzv.cz/_privat/19054.pdf" target="_blank" >https://vuzv.cz/_privat/19054.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1399/eps.2019.265" target="_blank" >10.1399/eps.2019.265</a>
Alternative languages
Result language
angličtina
Original language name
Effect of dietary fat on the content of vitamins and carotenoids in egg yolks
Original language description
This study evaluated the effects of fat source in the diet on the content of vitamins E and A, and carotenoids in egg yolks. Hisex Brown hens aged 49-56 weeks were fed on diets that differed in the content of crude fat (a diet without fat and diets supplemented with rapeseed or palm oil at 40 g/kg). Diets of all hens contained 3% dehydrated alfalfa (a source of carotenoids). Measurement of vitamin and carotenoid content in yolks was carried out by HPLC methods. Supplements of fat increased the alpha-tocopherol content in egg yolks by 80.1% (rapeseed oil) and 72.1% (palm oil), respectively. The increase of lutein, zeaxanthin and retinol in yolks of hens fed dehydrated alfalfa and oils was less pronounced (varied from 13.4% to 26.5%). Effects of dietary fat supplementation on deposition of lipophilic vitamins and carotenoids were small or statistically non-significant. The saturation of diets with fat increased the hen-day egg production and decreased the feed intake. It can be concluded that dietary inclusion of fat increased the deposition of alpha-tocopherol, retinol and carotenoids in eggs of hens fed a diet containing dehydrated alfalfa.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40201 - Animal and dairy science; (Animal biotechnology to be 4.4)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Poultry Science
ISSN
1612-9199
e-ISSN
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Volume of the periodical
83
Issue of the periodical within the volume
Marz
Country of publishing house
DE - GERMANY
Number of pages
8
Pages from-to
1-7
UT code for WoS article
000464101500001
EID of the result in the Scopus database
2-s2.0-85068697218