Document Detail


Effect of short-term UVB exposure on vitamin D concentration of eggs and vitamin D status of laying hens.
MedLine Citation:
PMID:  22185347     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Vitamin D deficiency in humans is widespread and only a few food items are important natural sources of vitamin D. This study investigated the effect of UVB exposure of laying hens on the vitamin D content in egg yolk. In a two-factorial design hens fed a vitamin D-deficient (-D) or -adequate (+D) diet were non-exposed or exposed to UVB light over a period of 4 wk. UVB exposure of the -D group caused nearly normal egg production rate and egg shell quality; exposure of the +D group did not further improve these parameters. UVB exposure tended to improve the concentration of plasma 25-hydroxycholecalciferol (25(OH)D3), but had no effect on 1,25-dihydroxycholecalciferol in plasma nor on cholecalciferol and 25(OH)D3 in egg yolk. The present study shows that a short-term exposure of laying hens with UVB light is not an appropriate way to improve the vitamin D content of egg yolk.
Authors:
Julika Lietzow; Holger Kluge; Corinna Brandsch; Nicole Seeburg; Frank Hirche; Marcus Andreas Glomb; Gabriele I Stangl
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-20
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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