'Duck Dynasty' -- Jep Robertson Out of the Hospital After Seizure

"Duck Dynasty" star Jep Robertson is back home after being laid up in a hospital for a seizure he suffered while deer hunting.

Jep was released Monday, though doctors still haven't figured out what triggered the attack last week. In the meantime, we're told they'll be keeping him on meds, and he may need further testing.

We're told Jep doesn't have much energy, but he's still feeling much better than he was over the weekend. TMZ broke the story ... Jep was hunting with his brother Willie Robertson and some friends when he collapsed.