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Alfalfa meal as a source of carotenoids in combination with ascorbic acid in the diet of laying hens

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F19%3AN0000015" target="_blank" >RIV/00027014:_____/19:N0000015 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.agriculturejournals.cz/publicFiles/116_2018-CJAS.pdf" target="_blank" >https://www.agriculturejournals.cz/publicFiles/116_2018-CJAS.pdf</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.17221/116/2018-CJAS" target="_blank" >10.17221/116/2018-CJAS</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Alfalfa meal as a source of carotenoids in combination with ascorbic acid in the diet of laying hens

  • Original language description

    The purpose of the experiment was to determine how the addition of dehydrated alfalfa (DA) and ascorbic acid (AA) into the diet of hens influences the performance characteristics and egg quality characterised by physical parameters, yolk carotenoid content, and the oxidative stability of yolks. Two hundred and forty Hisex Brown hens were divided into 6 treatment groups according to the level of DA (0 and 40 g/kg) and concentration of AA (0, 100, and 200 mg/kg) in the diet. Hen-day egg production and egg mass production were reduced by the supplement of DA (P < 0.001) and AA (P = 0.017). The addition of DA itself increased the feed intake per egg (P < 0.001) and the feed conversion ratio (P < 0.001). The heaviest eggs (P < 0.001) were laid by hens fed a diet with 100 mg/kg of AA (67.6 g). The AA supplement improved egg content quality, i.e., Haugh units (P < 0.001), albumen index (P < 0.001), and yolk index (P < 0.001), whereas the addition of DA increased values of yolk colour (P < 0.001) and had a negative effect on shell quality. The interaction of DA and AA was detected in the zeaxanthin concentration in the yolks (P = 0.002). The highest concentration was found in eggs from hens fed a diet with a DA supplement and 100 or 200 mg/kg of AA (17.33 or 17.25 mg/kg dry matter of yolk). In addition, 40 g/kg of DA significantly increased the concentration of other carotenoids, lutein (P < 0.001) and β-carotene (P < 0.001) in the yolks and increased the oxidative stability of fresh eggs (P < 0.001). The results suggest that adding DA in the amount of 40 g/kg to the hen diet provides a good source of carotenoids and, in combination with AA, a better deposition of carotenoids in egg yolks. On the other hand, DA deteriorates performance and shell quality.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    40101 - Agriculture

Result continuities

  • Project

  • 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

    Czech Journal of Animal Science

  • ISSN

    1212-1819

  • e-ISSN

  • Volume of the periodical

    64

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    9

  • Pages from-to

    17-25

  • UT code for WoS article

    000455987200003

  • EID of the result in the Scopus database

    2-s2.0-85062669343