The use of micro-organisms in animal nutrition is controlled
under Regulation 1831/2003/EC. Although guidelines
under the new legislation for the identification, characterisation,
and evaluation of probiotic feed additives are not yet
available, guidance on the assessment of additives in animal
nutrition was modified by the Commission Directives 94/
40/EC and 95/11/EC to include probiotics. Authorisation
for a micro-organism product can only be granted following
a positive assessment by the European Food Safety
Authority (EFSA)