Effect of dietary fat on the content of vitamins and carotenoids in egg yolks

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of dietary fat on the content of vitamins and carotenoids in egg yolks

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Effect of dietary fat on the content of vitamins and carotenoids in egg yolks

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

European Poultry Science

ISSN

1612-9199

e-ISSN

—

Svazek periodika

83

Číslo periodika v rámci svazku

Marz

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

1-7

Kód UT WoS článku

000464101500001

EID výsledku v databázi Scopus

2-s2.0-85068697218