The most common problem that hunters experience is that they do not have the two physical conditioning components that are required on any backcountry hunt: cardiovascular and muscular.
The Outwork Hunting Workout is a complete 4-week fitness plan to get you ready for the hunting season. The program includes both a cardio and strength training plan and schedule. The strength training plan is geared to be used in a gym setting with access to weights. The cardio plan suggests that you use either a treadmill or a bike, however you can substitute other cardio forms. 
No matter what big-game animal you are pursuing, this program will help you build both the strength and endurance necessary.