Dual Energy X-ray Absorptiometry as a Rapid and Non-Destructive Method for Determination of Lean, Fat and Bone Content in Livestock

Ó. López-Campos; M. Juárez; I.L. Larsen; N. Prieto; J. Roberts; M.E.R. Dugan; J.L. Aalhus

Dual Energy X-ray Absorptiometry as a Rapid and Non-Destructive Method for Determination of Lean, Fat and Bone Content in Livestock

In: 63rd International Congress of Meat Science and Technology

Authors:

Ó. López-Campos

Ó. López-Campos Agriculture and Agri-Food Canada, Lacombe Research Centre, Lacombe, Alberta, Canada; oscar.lopezcampos@agr.gc.ca

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M. Juárez

M. Juárez Agriculture and Agri-Food Canada, Lacombe Research Centre, Lacombe, Alberta, Canada; oscar.lopezcampos@agr.gc.ca

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I.L. Larsen

I.L. Larsen Agriculture and Agri-Food Canada, Lacombe Research Centre, Lacombe, Alberta, Canada; oscar.lopezcampos@agr.gc.ca

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N. Prieto

N. Prieto Agriculture and Agri-Food Canada, Lacombe Research Centre, Lacombe, Alberta, Canada; oscar.lopezcampos@agr.gc.ca

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J. Roberts

J. Roberts Agriculture and Agri-Food Canada, Lacombe Research Centre, Lacombe, Alberta, Canada; oscar.lopezcampos@agr.gc.ca

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M.E.R. Dugan

M.E.R. Dugan Agriculture and Agri-Food Canada, Lacombe Research Centre, Lacombe, Alberta, Canada; oscar.lopezcampos@agr.gc.ca

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, and

J.L. Aalhus

J.L. Aalhus Agriculture and Agri-Food Canada, Lacombe Research Centre, Lacombe, Alberta, Canada; oscar.lopezcampos@agr.gc.ca

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Type:: Chapter

Pages:: 606–607

DOI:: https://doi.org/10.3920/9789086868605_269

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This manuscript summarized results of ongoing research where dual energy x-ray absorptiometry (DXA) has been used to estimate lean, fat, and bone carcass composition in beef, pork and lamb. A total of 334 beef, 212 pork and 155 lamb carcasses were used to build calibration equations. Left carcass sides were scanned with a Lunar iDXA unit and then dissected into lean, fat, and bone and weighed. PLSR results between actual and DXA estimated lean and fat values showed highly related (R²>0.97) across species studied, while estimates for bone were less accurate, particularly for pork (R²=0.889) and lamb (R²=0.870). The present results suggest that DXA technology has the capability to accurately estimate carcass composition in livestock.

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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

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- Life Sciences

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Dual Energy X-ray Absorptiometry as a Rapid and Non-Destructive Method for Determination of Lean, Fat and Bone Content in Livestock

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63rd International Congress of Meat Science and Technology

Nurturing locally, growing globally

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