engleski

Relationship between carcass lean meat percentage and MRI data obtained on hams of entire boars

The study on the relationship between lean meat percentage (LMP) and ham measures assessed by means of magnetic resonance imaging (MRI) was performed on 20 carcasses of entire boars from one performance testing station in Germany. In addition, linear carcass measurements were taken, according to the standard protocol for stationary performance testing, to be used to estimate LMP by the Bonner Formula. Finally, manual dissection was serving as reference, for LMP. The correlations between the true LMP and linear measurements Bonner Formula were medium strong, but not in all cases statistically significant. On the other hand, the correlations between ham data obtained by MRI and reference LMP had stronger and significant correlations. Three new formulas were constructed in order to evaluate the LMP of entire boars. The best prediction ability was found when combining linear measurements with one MRI measure – the widest circumference of the ham (R2 = 0.67 and RMSEP = 1.395). Interestingly, the proposed equation has variables that can be easily taken ; three of them are taken regularly for Bonner Formula estimation and MRI based ham circumference aided to improve the prediction accuracy, a measure that could also be acquired by the simple use of meter or rope.

pigs ; entire boars ; lean meat percentage ; Magnetic resonance imaging ; dissection

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