Moreover, Regulation (EC) 1831/2003 banned the use of all antibiotics other than coccidiostats and histomonostats as feed additives (used as growth promoters) since 1 January 2006. Furthermore, these products have been completely banned on December 2012 [11]. Thus, VDs should be strictly applied for the prevention or treatment of diseases. In this way, these regulated limits require the determination of an extremely high number of
VD and pesticide residues in feed with the aim of ensuring their use in a rational and safe way.