Table 1. Enrichment items.

Category	Specific items	Farmers' evaluation
Balls	Golf balls	Good; used by mink
	Perforated plastic ‘wiffle’ balls	Good as long as robust (manufacturers vary); used by mink
	Cat toys with bells	Too destructible and costly
Animal products	Pigs' ears, cows' ears, hide strips, cow hooves	Very attractive to mink, but too destructible
	Pieces of marrow bone	Too costly
Other chewing items	Cut portions of fire hose	Uninteresting to mink
	Plastic T-shaped plumbing fixtures	Good; used by mink
	Hanging lengths of garden hose suspended from the top of each cage	Good if tied securely
	Pieces of wood, wooden spoons	Uninteresting to mink
	Nylon rope, sisal twine	Too destructible; may unravel to create choking hazards
Tunnels	Large plastic pipes, wire mesh tunnels	OK if large/strong enough

Italics indicate items that were selected for use in Experiment 2.