Determination of ent-kaurene in subcutaneous fat of Iberian pigs by gas chromatography multi-stage mass spectrometry with the aim to differentiate between intensive and extensive fattening systems

1. Rivas, M.N.
2. Rios, J.J.
3. Arteaga, J.F.
4. Quilez, J.F.
5. Barrero, A.F.
6. León-Camacho, M.