A total of 52 Iberian pig
fat samples were analysed using a LabSpecPro A108310 spectrophotometer (Analytical Spectral Device
Inc.), with a high-intensity fiber-optic contact probe. Spectra were collected in five analysis modes: from
the live animal, from the carcass in the slaughterhouse, from a subcutaneous fat sample with skin, from a
skin-free subcutaneous fat sample and from a transverse section. Calibrations were developed for the
prediction of the four main fatty acids in Iberian pig fat, obtaining for palmitic acid SECV values of
1.24% for in vivo analysis and 0.82% for carcass analysis, for stearic acid 0.67% and 0.94%, for oleic acid
1.42% and 1.48% and for linoleic 0.36% and 0.55%, respectively.