“…However, as defined in Article 1 of Decision 2000/766/ EC, PAPs comprise meat-and-bonemeal, meat meal, bonemeal, blood meal, dried plasma and blood products, hydrolysed proteins, hoof meal, horn meal, poultry offal meal, feather meal, dry greaves, fishmeal, dicalcium phosphate, gelatine and other similar products, including mixtures. Many of these ingredients cannot be identified by the microscopic method; while muscle fibres, meat particles and blood meal, which can often be identified, lack species-specific characteristics under the microscope (Pinotti et al, 2003). Indeed, although it is usually possible to identify the animal class (mammal, bird, fish) from the lacunae and canaliculi in bone fragments, lacunae from mammals and birds are not always distinguishable.…”