This is the mould which everyone since, it seems, has tried to put back together, by plagiarism.
This was the (Post Modern) 'The Book' for Ferreters.
Anything before those is now into the realms of Book Collectors material.Though, Fred J. Taylor may be worth checking out?
Anything since ....? I've struggled to find anything I wouldn't sling in the stove.
The top link was the ferreters "bible" wrote by people (one is a vet) who knew and understood ferrets,working,breeding and feeding.Although it does nt mention dry food mmmmmm
Y.I.S Leeview