Determining the relationship between early postmortem loin quality attributes and aged loin quality attributes using meta-analyses techniques

Journal of Animal Science
B N HarshA C Dilger

Abstract

Meta-analyses techniques using 11 independent datasets were used to determine correlations between pork loin quality evaluated at 1-d postmortem and quality evaluated at 12- to 28-d postmortem. Datasets encompassed approximately 3,957 loins. The effects of aging on ventral loin surface quality were determined using a paired-T test. Ventral loin surfaces become 8% lighter (P < 0.0001), 44.5% redder (P < 0.0001), and 46% more yellow (P < 0.0001) during the aging period. Therefore, it is apparent that loin quality changes during postmortem aging. Because of this, it becomes necessary to determine the correlation between early and aged pork quality parameters. Pearson correlation coefficients within original datasets were calculated, and then sample-weighted mean correlations r¯ and variances [Var(r)] were calculated across datasets. Early postmortem ventral instrumental lightness (L*) was moderately correlated with aged ventral L* r¯ = 0.50), aged ventral visual color r¯ = -0.38), aged chop face (freshly cut) L* r¯ = 0.44), and aged chop face visual color r¯ = -0.38). Early postmortem ventral instrumental redness (a*) was moderately correlated with aged ventral a* r¯ = 0.49) and aged chop face a* r¯ = 0.46). Early postmortem ventr...Continue Reading

References

Mar 15, 2002·Journal of Animal Science·E Huff-LonerganM F Rothschild
Jun 17, 2006·Poultry Science·G D Rosen
Nov 1, 2002·Meat Science·Mohammad KoohmaraieTommy L Wheeler
Sep 1, 2005·Meat Science·R A Mancini, M C Hunt
Aug 1, 2008·Animal : an International Journal of Animal Bioscience·D SauvantN R St-Pierre

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