How to trap live animals?

[Bugflipper]

Hello guys. A few years back I was asked by my state DNR to trap animals for displays at the county fair. I already had a box trap and so far have been able to get a male and female of each: squirrel, opossum, red fox, grey fox, racoon, swamp rabbit, cottontail, mink and ferret. I keep the animals on my property and pay for food and Vet bills. I am reimbursed annually for the expenses of their care.  I have yet to catch a bobcat in the box traps. A year ago I built a half acre deer pen with top hoping to get wounded deer and nurse them back. No success with the wardens getting one. So as it stands I would like some help on how to trap bobcat, deer, coyote and wild pigs without hurting them. My idea was to use snares and use aquarium tubing to insulate the wire from the animal's neck. I know the snares are supposed to strangle, but I thought maybe a button to stop the cable from tightening to much would work. Any suggestions? By the way I have no experience with traps at all, except the little box traps.
Thanks

[NONYA]

For bobcat i would try a long boxtrap with a seperate compartment at the trigger end with a live cottontail rabbit,seperated by thin chiken wire so he can see it very well but not get it easily.You need to build it so the cat can see all the way through the tunnel so when he looks through it he can see the rabbit,use a floor plate in the trunnel at the end as a trigger to drop the door at the enterance.I built one like this that worked for coons,fox,coyote and wild cats.

[Bogmaster]

I make snares---called cable restraints,by states that are now allowing their use on land. These snares have a true relaxing lock,a Reichart 180degree bend lock.Wisconsin,Missouri,Pennsylvania and Michigan have now allowed land snaring using this lock.The key here,is to keep the animal from entangling itself .
 Just a thought that may be of interest to you.
 Tom