My experience with silverfox was terrible.
I have decent sized cages.
From 24x48 to 48x48. (which I will now longer build, as they are too hard for me to clean or maintain at that size.)
I tried with several does, all unrelated, from pedigreed show lines, and now ,finally, I do have an unpedigreed one who is at least "normal."
The rest were all high strung, and for the most part strait up crazy in one form or another. Ranging from brutally aggressive (does who would attack kits if I pet them after petting a buck), to a doe so panicked she would fly around their cages at breakneck speed any time I approached. The best of them would retreat to the back of her cage and cringe or shake any time I looked at her too long.
They also were not particularly good producers due to a weak milk supply. Even if they gave birth to 9 kits, I'd still average closer to 6 kits weaned per litter.
I'm gentle with my rabbits and tend to spoil them.
I worked very very hard trying to tame those sf and sf crosses, to the point of raising one inside with my sugar sweet velveteen lop doe.
That one almost had me in stitches after her first litter. :evil:
Their kits were just as nutty. Much more shy then normal kits.
Bucks were usually pretty mellow at puberty, as bucks tend to be, so I find them not at all useful in determining temper.
Breeding the mellow SF buck to an extremely mellow line of mutt does still acts skittish after several generations.
Others have had different experiences, and paint a glowing picture of the breed.
But, I've spoken to enough people online to know my experience was far from a unique one.
You really need to be as careful as to whom you source your stock from as with any breed.
They didn't forage particularly well, actually my harlequins, mutts, and velveteens all forage better than any of the silver fox did.
Mine did have strong points though. Some had a startling growth rate. They were very very cold hardy. The fur IS gorgeous, and they never seem to eat as much as new zealands or my mutts.
Of course they never raised as large of litters either, so that may have been a factor in both eating less and getting better growth.
My nicer buck: