PROCESSING RAWHIDE FOR PET CHEWS

摘要

A method and apparatus for manufacturing a substantially pure rawhide treat or chew for pets from rawhide by extruding the rawhide through an extruder (18) having a number of heating zones (26a, 26b, 26c), a pair of similar co-penetrating screws (16) and interchangeable extrusion dies (36). The method allows for the use of wet rawhide or rawhide scraps and contemplates the addition of various additives to the rawhide product.