What are the risks of a non-representative sample?
The sample is compared to the basic needs of Maslow’s pyramid: there is no point to pass to the next stages – physical examination, division, analysis, and interpretation – if the basic needs are not satisfied. In Europe, the regulation 691/2013/UE UE of 19th July 2013 or the standard NF V 03-777 of December 2013 are among the measures that strictly govern its practice, but there are many exceptions to the way these rules are applied.
False interpretations might thus stem from a non-representative sample. Indeed, samples are at the core of all interpretations, often causing irreversible decisions regarding regulatory, zootechnical, or technological matters. In this case, the resulting diagnosis will not lead to an appropriate decision; for example, a renegotiation of input prices or the non-commercialisation of finished products. An unsuited sample can therefore lead to costly decisions, with no effect on the initial target sought. Such errors can lead to various consequences: quarantine, product withdrawal, compensation, reformulation, readjustment of raw materials or feed, unjustified accusations from suppliers or customers, changes of equipment.