Otter Gland is a good lure alone for catching otters. Old trappers like myself have been using otter glands for years. Take a small one once bottle and cut and squeeze the glad/oil into it. You can add a little mineral oil to it to thin it out a little. When you use it, use very little of it, I mean use a tooth pick to put the gland lure on. Dip the tooth pick in the bottle about an inch and no more.

The lure works best for cage trapping them on a lake dock or on land. It doesn't work if your trying to use it to attract them into an area to have them dive into the water and swim into your trap. I have been using it for year and yes it does work.
:hello:JC