PDO	Protected Designation of Origin
PGI	Protected Geographical Indication
SIRA	Stable Isotope Ratio Analysis
IRMS	Isotope Ratio Mass Spectroscopy
Q-ICP-MS	Single-Quadrupole Inductively Coupled Plasma Mass Spectrometer
PCA	Principal Component Analysis
ANOVA	Analysis of Variance
DU	Duroc
LA	Landrace
Y	Yorkshire
LW	Large White
PLW	Pulawska
P	Pietrain
MR	Mora Romagnola
CS	Cinta Senese
IB	Iberian
LTL	Longissimus thoracis et lumborum
DM	Dry matter
DFDM	Defatted Dry Matter
δ	Delta Notation
VPDB	Vienna Pee Dee Belemnite
VCDT	Vienna Canyon Diablo Troilite
VSMOW	Vienna Standard Mean Ocean Water
LOD	Limit of Detection
LOQ	Limit of Quantification
RSD	Relative Standard Deviation
R	Recovery