Vitamin D-biofortified beef: A comparison of cholecalciferol with synthetic versus UVB-mushroom-derived ergosterol as feed source
|Title:||Vitamin D-biofortified beef: A comparison of cholecalciferol with synthetic versus UVB-mushroom-derived ergosterol as feed source||Authors:||Duffy, Sarah K.
O'Doherty, John V.
Clarke, Louise C.
Kelly, Alan K.
|Permanent link:||http://hdl.handle.net/10197/9645||Date:||1-Aug-2018||Online since:||2019-03-21T14:42:28Z||Abstract:||This study investigates dietary fortification of heifer feeds with cholecalciferol and ergocalciferol sources and effects on beef total vitamin D activity, vitamer, respective 25-hydroxymetabolite contents, and meat quality. Thirty heifers were allocated to one of three dietary treatments [(1) basal diet + 4000 IU of vitamin D3 (Vit D3); (2) basal diet + 4000 IU of vitamin D2 (Vit D2); and (3) basal diet + 4000 IU of vitamin D2-enriched mushrooms (Mushroom D2)] for a 30 day pre-slaughter period. Supplementation of heifer diets with Vit D3 yielded higher (p < 0.001) Longissimus thoracis (LT) total vitamin D activity (by 38–56%; p < 0.05) and serum 25-OH-D concentration (by 20–36%; p < 0.05), compared to that from Vit D2 and Mushroom D2 supplemented animals. Irrespective of vitamin D source, carcass characteristics, sensory and meat quality parameter were unaffected (p > 0.05) by the dietary treatments. In conclusion, vitamin D3 biofortification of cattle diets is the most efficacious way to enhance total beef vitamin D activity.||Funding Details:||European Commission - Seventh Framework Programme (FP7)||Type of material:||Journal Article||Publisher:||Elsevier||Journal:||Food Chemistry||Volume:||256||Start page:||18||End page:||24||Copyright (published version):||2018 Elsevier||Keywords:||Cholecalciferol; Ergocalciferol; Vitamin D₂-enriched mushrooms; Heifers; Longissimus thoracis; Dietary biofortification||DOI:||10.1016/j.foodchem.2018.02.099||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Agriculture and Food Science Research Collection|
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