Sterilised animal feed (esp. pet food) prods. comprise meat-based chunks in a sauce or base. The chunks are prepd. from a mixt. of 55-85% meat and meat by-products, 10-25% cereals and 0-15% water. The chunks are irregular with clean-cut unbroken edges, where 97% of the chunks are larger than 5mm and 40-70% are not geometric cubes. Also claimed is the prepn. of the prod. by mixing the ingredients of the chunks, emulsifying the mixt., extruding and cooking the mixt., pre-cutting, cooling and cubing the prod., mixing the resulting chunks with the sauce or base, filling a container with the mixt., and sterilising the prod. The chunks are pref. prepd. from a mixt. of 58-68% meat and meat by-products, 16-25% cereals, 0-5% (esp. 2-5%) vegetable protein and 5-14% water. The chunks have a water content of 50-60% and are present in an amt. of 20-50%. The mixt. is emulsified at 15 degrees C or less and is extruded in the form of a sausage with a cross section that can be inscribed in a 20x20 mm square. The sausage is co