Prediction of intramuscular fat levels in Texel lamb loins using X-ray computed tomography scanning

N Clelland, L Bunger, KA McLean, JE Conington, C Maltin, S Knott, NR Lambe

Research output: Contribution to journalArticle

14 Citations (Scopus)
4 Downloads (Pure)

Abstract

For the consumer, tenderness, juiciness and flavour are often described as the most important factors for meat eating quality, all of which have a close association with intramuscular fat (IMF). X-ray computed tomography (CT) can measure fat, muscle and bone volumes and weights, in vivo in sheep and CT predictions of carcass composition have been used in UK sheep breeding programmes over the last few decades. This study aimed to determine the most accurate combination of CT variables to predict IMF percentage of M. longissimus lumborum in Texel lambs. As expected, predicted carcass fat alone accounted for a moderate amount of the variation (R2 = 0.51) in IMF. Prediction accuracies were significantly improved (Adj R2 N 0.65) using information on fat and muscle densities measured fromthree CT reference scans, showing that CT can provide an accurate prediction of IMF in the loin of purebred Texel sheep. © 2014 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)263 - 271
Number of pages9
JournalMeat Science
Volume98
Issue number2
DOIs
Publication statusPrint publication - 2014

Fingerprint

Texel
intramuscular fat
loins
computed tomography
X-radiation
lambs
prediction
sheep
lipids
muscles
juiciness
carcass composition
longissimus muscle
flavor
bones
breeding

Bibliographical note

1025116

Keywords

  • Intramuscular fat
  • Lamb
  • Meat quality
  • X-ray computed tomography

Cite this

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Prediction of intramuscular fat levels in Texel lamb loins using X-ray computed tomography scanning. / Clelland, N; Bunger, L; McLean, KA; Conington, JE; Maltin, C; Knott, S; Lambe, NR.

In: Meat Science, Vol. 98, No. 2, 2014, p. 263 - 271.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Prediction of intramuscular fat levels in Texel lamb loins using X-ray computed tomography scanning

AU - Clelland, N

AU - Bunger, L

AU - McLean, KA

AU - Conington, JE

AU - Maltin, C

AU - Knott, S

AU - Lambe, NR

N1 - 1025116

PY - 2014

Y1 - 2014

N2 - For the consumer, tenderness, juiciness and flavour are often described as the most important factors for meat eating quality, all of which have a close association with intramuscular fat (IMF). X-ray computed tomography (CT) can measure fat, muscle and bone volumes and weights, in vivo in sheep and CT predictions of carcass composition have been used in UK sheep breeding programmes over the last few decades. This study aimed to determine the most accurate combination of CT variables to predict IMF percentage of M. longissimus lumborum in Texel lambs. As expected, predicted carcass fat alone accounted for a moderate amount of the variation (R2 = 0.51) in IMF. Prediction accuracies were significantly improved (Adj R2 N 0.65) using information on fat and muscle densities measured fromthree CT reference scans, showing that CT can provide an accurate prediction of IMF in the loin of purebred Texel sheep. © 2014 Elsevier Ltd. All rights reserved.

AB - For the consumer, tenderness, juiciness and flavour are often described as the most important factors for meat eating quality, all of which have a close association with intramuscular fat (IMF). X-ray computed tomography (CT) can measure fat, muscle and bone volumes and weights, in vivo in sheep and CT predictions of carcass composition have been used in UK sheep breeding programmes over the last few decades. This study aimed to determine the most accurate combination of CT variables to predict IMF percentage of M. longissimus lumborum in Texel lambs. As expected, predicted carcass fat alone accounted for a moderate amount of the variation (R2 = 0.51) in IMF. Prediction accuracies were significantly improved (Adj R2 N 0.65) using information on fat and muscle densities measured fromthree CT reference scans, showing that CT can provide an accurate prediction of IMF in the loin of purebred Texel sheep. © 2014 Elsevier Ltd. All rights reserved.

KW - Intramuscular fat

KW - Lamb

KW - Meat quality

KW - X-ray computed tomography

U2 - 10.1016/j.meatsci.2014.06.004

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