Health
Scientific Committees
Scientific Steering Committee (former MDSC)
Outcome of discussions
Statement of
the Scientific Steering Committee (SSC) on its Report and
Scientific Opinion on mammalian derived meat and bone meal
forming a cross-contaminant of animal feedstuffs, adopted
on 24-25 September 1998, adopted at the SSC meeting of
26-27 October 2000
In 1998, the Scientific Steering
Committee (SSC) was invited to address the following
question:
"Does there exist an acceptable level of
cross-contamination with mammalian meat-and-bone meal of
ruminant feed? If yes, which one and under which
conditions is it applicable?"
On the basis of the report of a working
group, the Scientific Steering Committee adopted on 24-25
September 1998 the following opinion.
"The Scientific Steering Committee is of the opinion
that in principle, cross-contamination with mammalian
meat-and-bone meal of animal feedstuffs is not acceptable
and that only a zero level of cross-contamination can
exclude any risk resulting from it. The risk for
cross-contamination should be avoided by appropriate
measures during the production, transport, storage and
processing of the raw materials and of the produced
feedstuffs.
For practical reasons and taking into account the
present technical limits of detection as well as a risk
analyses based on present knowledge, the SSC considers
that levels of cross-contamination of ruminant feeds with
mammalian meat-and-bone meal - derived from raw materials
sourced and processed according to the conditions laid
down in the SSC's opinion on the safety of MBM - which
exceeds 0.50% MBM (or 0.15% animal bone fragments or
0.25% proteins
1
, whichever is the lowest) should be
condemned."
The SSC wishes to confirm that in
principle, cross-contamination with mammalian meat-and-bone
meal of ruminant feedstuffs is not acceptable. Feed
cross-contaminated above levels that are reliably
quantifiable should be condemned. In 1998, this level was
put at 0,5% because of technical limits of quantification.
At the same time, the SSC carried out a preliminary
assessment of the risk for cattle resulting from a feed
contaminated at that level of 0.5% if the MBM was produced
in accordance with the SSC opinion on meat-and-bone meal
i.e. if the MBM was produced exclusively from material fit
for human consumption, without SRM and under pressure
standards.
The SSC further confirms that it is
presently updating the quantitative risk assessment of
cross-contaminated feedstuffs presented in the report of
September 1998, in the light of new information that
meanwhile has become available, especially the one
presented in its opinion of
Opinion of 13-14 April 2000 on Oral exposure of humans
to the BSE agent: infective dose and species
barrier.
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1
Considering that, on average, proteins
account for at least 50% of meat and bone meals, 0.25%
protein represents the equivalent of 0.50% meat and bone
meal.
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