The Effect of Tenderstretching and Electrical Stimulation on the Tenderness of Two Alpaca (Vicugna Pacos) Muscles

T.E. Biffin; M.A. Smith; R.D. Bush; D.L. Hopkins

The Effect of Tenderstretching and Electrical Stimulation on the Tenderness of Two Alpaca (Vicugna Pacos) Muscles

In: 63rd International Congress of Meat Science and Technology

Authors:

T.E. Biffin

T.E. Biffin ¹The University of Sydney, Faculty of Veterinary Science, 425 Werombi Road, Camden, NSW 2570, Australia

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M.A. Smith

M.A. Smith ¹The University of Sydney, Faculty of Veterinary Science, 425 Werombi Road, Camden, NSW 2570, Australia

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R.D. Bush

R.D. Bush ¹The University of Sydney, Faculty of Veterinary Science, 425 Werombi Road, Camden, NSW 2570, Australia

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D.L. Hopkins

D.L. Hopkins ²NSW Department of Primary Industries, Centre for Red Meat and Sheep Development, P.O. Box 129, Cowra NSW 2794, Australia; tamara.biffin@sydney.edu.au

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Type:: Chapter

Pages:: 258–259

DOI:: https://doi.org/10.3920/9789086868605_109

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Thirty-six castrated male huacaya alpacas were slaughtered on the South Coast of NSW, Australia. Carcases were split in half at processing and randomly allocated to one of four treatment groups in a 2×2 factorial (Achilles hung and no electrical stimulation (AH + No ES; CON); Achilles hung and electrical stimulation (AH + ES); Tenderstretched and no electrical stimulation (TS + No ES); and Tenderstretched and electrical stimulation (TS + ES)). At 24 hours, the m. longissimus (LL), and m. semimembranosus (SM) were removed. A 5 g sample was frozen for subsequent sarcomere length (SL) measurement and 80 g aged for 10 days prior to shear force and ultimate pH testing. There was no treatment interaction within muscles. Electrical stimulation (ES) resulted in longer LL SL (P<0.05) and lower SF (P<0.001) values while tenderstretching (TS) resulted in longer SL and lower SF (P<0.001) in the SM. These findings demonstrate that tenderstretching and electrical stimulation should be applied in combination in order to maximise tenderness of alpaca carcases on a whole carcase basis.

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63rd International Congress of Meat Science and Technology

Nurturing locally, growing globally

E-Book ISBN:: 9789086868605

Publisher:: Wageningen Academic

Print Publication Date:: 15 Nov 2017

Subjects
- Life Sciences

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The Effect of Tenderstretching and Electrical Stimulation on the Tenderness of Two Alpaca (Vicugna Pacos) Muscles

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63rd International Congress of Meat Science and Technology

Nurturing locally, growing globally

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