Variation in Egg Yolk Colour in Different Systems of Rearing Laying Hens

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16270%2F10%3A00002768" target="_blank" >RIV/62157124:16270/10:00002768 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Variation in Egg Yolk Colour in Different Systems of Rearing Laying Hens

Popis výsledku v původním jazyce

72 laying hens (ISA BROWN hybrid combination) were divided into two groups. 36 layers in the first group were reared on litter while the second group of layers was reared using the cage rearing system. Samples of eggs were collected from both groups fora period of seven months. Yolk colour was determined using a portable spectrophotometer using a newly developed method, which complied with the CIELAB system. Yolk colour parameter L* decreased for the rearing system on litter, i.e. egg yolk colour became darker in the course of the whole experiment (? = 0.05). Parameter a* showed a distinct increase in the case of the rearing system on litter, with the differences being significantly (? = 0.05) over the last three months of the experiment. Differencesfor the whole experiment were highly conclusive (? = 0.01), as seen from an increasing red colour intensity. Similarly, parameter b* also increased, i.e. egg yolk was of more distinct yellow colour. In the case of the cage-rearing system,

Název v anglickém jazyce

Variation in Egg Yolk Colour in Different Systems of Rearing Laying Hens

Popis výsledku anglicky

72 laying hens (ISA BROWN hybrid combination) were divided into two groups. 36 layers in the first group were reared on litter while the second group of layers was reared using the cage rearing system. Samples of eggs were collected from both groups fora period of seven months. Yolk colour was determined using a portable spectrophotometer using a newly developed method, which complied with the CIELAB system. Yolk colour parameter L* decreased for the rearing system on litter, i.e. egg yolk colour became darker in the course of the whole experiment (? = 0.05). Parameter a* showed a distinct increase in the case of the rearing system on litter, with the differences being significantly (? = 0.05) over the last three months of the experiment. Differencesfor the whole experiment were highly conclusive (? = 0.01), as seen from an increasing red colour intensity. Similarly, parameter b* also increased, i.e. egg yolk was of more distinct yellow colour. In the case of the cage-rearing system,

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Acta veterinaria Brno

ISSN

0001-7213

e-ISSN

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Svazek periodika

79

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

000282195800003

EID výsledku v databázi Scopus

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