I'm not sure I quite agree with you Chuck about cat/dog food, although I am not much inclined to feed it anyway.
The document states: The reason cooked products are also included in the ban is that, although cooking may reduce the risk, there are difficulties in effectively controlling cooking temperatures, to ensure virus destruction, or storage to prevent re-contamination with raw product. This would be absoloutely true for a domestic or catering kitchen, but would not apply to a canning factory where processes would be tightly controlled and there should be no possibility of cross contamination.
The only was to be absoloutely certain of what the legislation says is to read the Act or Statutory Instrument, whichever type of document contains the legislation - but life's too short...!