NR AWDW
AU Cummins,E.J.; Adkin,A.
TI Risks from the use of mammalian meat and bone meal as a soil improver
QU International Conference - Prion 2006: Strategies, advances and trends towards protection of society - 3.10.-6.10.2006, Torino, Italy, Lingotto Conference Centre - Poster sessions RA-02
PT Konferenz-Poster
AB Landspreading is now being considered a viable utilisation route of mammalian meat and bone meal (mMBM) by many European Countries and which is allowed under new European legislation (European Commission regulation No 1774/2002). These changes have meant that Category 3 waste (including mMBM derived from animals slaughtered for human consumption) which has been appropriately heat treated and ground to a specified particle size, can be spread on non-pasture agricultural land. Two separate case studies (study 1 in Great Britain and study 2 in Ireland) on the potential exposure to Transmissible Spongiform Encephalopathy (TSE) infectivity following the spreading of Category 3 abattoir waste on non-pasture agricultural land was carried out. Both models use Monte Carlo simulation techniques to account for parameter uncertainty and variability. For Case Study 1, the average TSE infectivity on non-pasture agricultural land per year from sheep with scrapie was found to be higher (5 orders of magnitude) than that estimated for BSE in cattle (1.5 Ovine Oral ID50 per tonne of mMBM compared to 1.5 × 10 (exp-5) Bovine Oral ID50 per tonne of mMBM). The mean estimate for BSE in sheep was 8.1 × 10 (exp-6) Ovine Oral ID50 per tonne. For Case Study 2 the mean level of infectivity in Category 3 produced mMBM was assessed to be 2.36 × 10 (exp-5) ID50/tonne of MBM. The spreading of this MBM resulted in infectivity on non-pasture land of 1.62 × 10 (exp-8) Bovine Oral ID50/m3. The mean simulated probability of infection per year per bovine animal was 1.11 × 10 (exp-9). The two studies indicate the low risk associated with the re-use of mMBM as a fertiliser and signal the option to change national legislation in line with EU TSE legislation without comprising animal or human health.
AD E.J. Cummins: School of Agriculture Food Science and Veterinary Medicine,University College Dublin, Earlsfort Terrace, Dublin 2, Ireland; A. Adkin: Centre for Epidemiology and Risk Analysis, Veterinary Laboratories Agency, Weybridge, Surrey, KT15 3NB, UK. E-mail: Enda.Cummins@ucd.ie
SP englisch
PO Italien