It is important to take your dogs collar off daily for several reasons:
First and foremost, if you're starting with a puppy, the dog is going to grow and you will need to expand the adjustable collar. If you’re not taking the collar off, you won’t be adjusting it and your dogs’ neck can become infected and require keeping the collar off until healed. Larger collars are available for $12.50.
Second, dogs will typically lose a few pounds when getting the freedom to run. You will see the receiver hanging instead of sitting properly to ensure correction when approaching the line. This is the reason 95% of dogs leave the yard, the collar needs adjusted. (Tightened)
Third, when seasons change dog gain and lose their coats. Again, the collar won’t be fitting properly, and you need to adjust accordingly.