Cholecalciferol supplementation in heifer diets increases beef vitamin D concentration and improves beef tenderness
|Title:||Cholecalciferol supplementation in heifer diets increases beef vitamin D concentration and improves beef tenderness||Authors:||Duffy, Sarah K.
Clarke, Louise C.
Kelly, Alan K.
|Permanent link:||http://hdl.handle.net/10197/9644||Date:||Dec-2017||Online since:||2019-03-21T14:36:51Z||Abstract:||This study investigated the effects of cholecalciferol (vitamin D₃) supplementation on beef vitamin D activity, beef tenderness and sensory attributes. Thirty heifers were randomly allocated to one of three finishing dietary treatments [(T1) basal diet + 0 IU vitamin D₃; (T2) basal diet + 2000 IU vitamin D₃; and (T3) basal diet + 4000 IU vitamin D₃] for a 30 day period pre-slaughter. Vitamin D₃ supplementation linearly increased serum 25-hydroxyvitamin D₃ (25-OH-D3) concentrations (R2 = 0.48), Longissimus thoracis (LT) total vitamin D activity (R2 = 0.78) as well as individually vitamin D₃ (R2 = 0.84) and 25-OH-D₃ (R2 = 0.75). The highest vitamin D₃ inclusion diet (T3) had a 42% increase (P < 0.001) in LT vitamin D activity compared to the intermediate diet (T2) and a 145% increase over the lowest level diet (T1). Vitamin D₃ supplementation decreased LT shear (P < 0.05) force values after 14 days chilling. Sensory parameters were not affected (P > 0.05). In conclusion, through short-term vitamin D₃ supplementation of cattle diets, beef vitamin D activity can successfully be enhanced||Funding Details:||Department of Agriculture, Food and the Marine||Type of material:||Journal Article||Publisher:||Elsevier||Journal:||Meat Science||Volume:||134||Start page:||103||End page:||110||Copyright (published version):||2017 Elsevier||Keywords:||Cholecalciferol; Heifers; Longissimus thoracis; Tenderness; Vitamin D activity||DOI:||10.1016/j.meatsci.2017.07.024||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Agriculture and Food Science Research Collection|
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