Effects of a beta-agonist treatment, Vitamin D3 supplementation and electrical stimulation on meat quality of feedlot steers
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| dc.contributor.author | Strydom, P.E. (Phillip Evert)
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| dc.contributor.author | Hope-Jones, Michelle
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| dc.contributor.author | Frylinck, L.
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| dc.contributor.author | Webb, E.C. (Edward Cottington)
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| dc.date.accessioned | 2012-08-28T11:00:25Z | |
| dc.date.available | 2012-08-28T11:00:25Z | |
| dc.date.issued | 2011-12 | |
| dc.description.abstract | In this study, 20 young steers received no beta-agonist (C), 100 animals all received zilpaterol hydrocholoride (Z), with 1 group only receiving Z while the other 4 groups received zilpaterol and vitamin D3 at the following levels (IU/animal/day) and durations before slaughter: 7 million for 3 days (3D7M); 7 million for 6 days (6D7M); 7 million for 6 days with 7 days nor supplementation (6D7M7N) and 1 million for 9 days (9D1M). Left carcass sides were electrically stimulated (ES) and the right side not stimulated (NES). Samples were aged for 3 or 14 days post mortem. Parameters included Warner –Bratzler shear force (WBSF), myofibril filament length, sarcomere length and calpastatin and calpain enzyme activity. Both ES and prolonged aging reduced WBSF (P<0.001). 6D7M, 6D7M7N and Z remained significantly tougher than C (P<0.001), while 3D7M and 9D1M improved WBSF under NES conditions. ES is more effective to alleviate beta-agonist induced toughness than high vitamin D3 supplements. | en |
| dc.description.librarian | nf2012 | en |
| dc.description.sponsorship | THRIP and the RMRDT. | en_US |
| dc.description.uri | http://www.elsevier.com/locate/meatsci | en_US |
| dc.identifier.citation | P.E. Strydom, M. Hope-Jones, L. Frylinck & E.C. Webb, The effects of a beta-agonist treatment, Vitamin D3 supplementation and electrical stimulation on meat quality of feedlot steers, Meat Science, vol. 89, no. 4, pp. 460-468 (2011), doi: 10.1016/j.meatsci.2011.05.012. | en |
| dc.identifier.issn | 0309-1740 (print) | |
| dc.identifier.issn | 1873-4138 (online) | |
| dc.identifier.other | 10.1016/j.meatsci.2011.05.012 | |
| dc.identifier.uri | http://hdl.handle.net/2263/19652 | |
| dc.language.iso | en | en_US |
| dc.publisher | Elsevier | en_US |
| dc.rights | © 2011 Elsevier. All rights reserved. Notice: this is the author’s version of a work that was accepted for publication in Meat Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Meat Science, vol 89, issue 4, 2011, doi: 10.1016/j.meatsci.2011.05.012. | en_US |
| dc.subject | Vitamin D3 | en |
| dc.subject | Zilpaterol | en |
| dc.subject | Electrical stimulation | en |
| dc.subject | Calpains | en |
| dc.subject | Meat tenderness | en |
| dc.subject.lcsh | Cholecalciferol | en |
| dc.subject.lcsh | Adrenergic beta agonists in animal nutrition | en |
| dc.subject.lcsh | Meat -- Quality | en |
| dc.subject.lcsh | Animal nutrition | en |
| dc.title | Effects of a beta-agonist treatment, Vitamin D3 supplementation and electrical stimulation on meat quality of feedlot steers | en |
| dc.type | Postprint Article | en |
