Determination of Veal Carcass Composition by Dual Energy X-ray Absorptiometry (Dexa)

A.A.G. Lobo; M.L. Chizzotti; F.S. Machado; A.C.B. Menezes; J. Dias; M.I. Marcondes; S.L. Silva

Determination of Veal Carcass Composition by Dual Energy X-ray Absorptiometry (Dexa)

In: 63rd International Congress of Meat Science and Technology

Authors:

A.A.G. Lobo

A.A.G. Lobo ¹University of São Paulo (USP), Pirassununga, Brazil

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M.L. Chizzotti

M.L. Chizzotti ²University of Viçosa (UFV), Viçosa, Brazil

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F.S. Machado

F.S. Machado ³Brasilian Company Agricultural Research (EMBRAPA); anneliselobo@usp.br

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A.C.B. Menezes

A.C.B. Menezes ²University of Viçosa (UFV), Viçosa, Brazil

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J. Dias

J. Dias ²University of Viçosa (UFV), Viçosa, Brazil

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M.I. Marcondes

M.I. Marcondes ²University of Viçosa (UFV), Viçosa, Brazil

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, and

S.L. Silva

S.L. Silva ¹University of São Paulo (USP), Pirassununga, Brazil

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Type:: Chapter

Pages:: 313–314

DOI:: https://doi.org/10.3920/9789086868605_134

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This work was developed to evaluate carcass composition by dual energy x-ray absorptiometry (DEXA) in crossbred calves (Holstein × Gyr). Seventeen calves were used, with average weight of 48±7.5 kg and average age of 45±11 days. After the slaughter, carcasses were analyzed in a DEXA unit (GE HEALTHCARE LUNAR PRODIGY) using enCORE software for small animals to obtain the fat, lean tissue, bone mineral content and bone mineral density. Then, carcasses were dissected into separable muscle, fat and bone tissues which were grounded and freeze dried for further laboratorial analyses of dry matter, mineral matter, total nitrogen and ether extract. DEXA results for fat, lean tissue and bone mineral content were compared to those observed by dissection and chemical analysis, and regression equations were developed. DEXA can be used to assess the amount of protein, minerals, muscle and bone. However, the use of DEXA was not effective in determining the fat content of very lean carcasses, derived from young calves.

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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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Determination of Veal Carcass Composition by Dual Energy X-ray Absorptiometry (Dexa)

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63rd International Congress of Meat Science and Technology

Nurturing locally, growing globally

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