Effect of dietary beta-agonist treatment, vitamin D3 supplementation and electrical stimulation of carcasses on colour and drip loss of steaks from feedlot steers

M Hope-Jones; P E Strydom; L Frylinck; E C Webb

doi:10.1016/j.meatsci.2011.10.001

Effect of dietary beta-agonist treatment, vitamin D3 supplementation and electrical stimulation of carcasses on colour and drip loss of steaks from feedlot steers

Meat Sci. 2012 Mar;90(3):607-12. doi: 10.1016/j.meatsci.2011.10.001. Epub 2011 Oct 12.

Authors

M Hope-Jones¹, P E Strydom, L Frylinck, E C Webb

Affiliation

¹ Department of Animal & Wildlife Sciences, University of Pretoria, Pretoria, 0002, South Africa.

PMID: 22035636
DOI: 10.1016/j.meatsci.2011.10.001

Abstract

In this study, 20 young steers received no beta-agonist (C) and 100 animals all received zilpaterol hydrochloride (Z), with 1 group receiving Z while the other 4 groups receiving Z and vitamin D(3) at the following levels (IU/animal/day) and durations before slaughter: 7million for 3days (3D7M) or 6days (6D7M), 7million for 6days with 7days no supplementation (6D7M7N) and 1million for 9days (9D1M). Left carcass sides were electrically stimulated (ES) and right sides not (NES). Samples were analysed fresh or vacuum-aged for 14days post mortem. Parameters included drip loss and instrumental colour measurements. In general, zilpaterol showed increased drip loss, lighter meat, and reduced redness. Vitamin D(3) supplementation could not consistently overcome these negative effects. All vitamin D(3) treatments reduced drip loss of stimulated aged steaks.

MeSH terms

Animal Feed
Animal Nutritional Physiological Phenomena
Animals
Antioxidants / administration & dosage*
Cattle
Cholecalciferol / administration & dosage*
Color
Diet / veterinary*
Dietary Supplements*
Electric Stimulation
Male
Meat*
Muscle, Skeletal / drug effects
Postmortem Changes
Trimethylsilyl Compounds / administration & dosage*

Substances

Antioxidants
Trimethylsilyl Compounds
Zilpaterol
Cholecalciferol