how can my pitbull get big
give him meat, and protein
To make your pitbull bigger, you can start by hand walking, playing, and taking short jogs on grass or dirt to help build up their stamina. Start with light weight and then gradually move up to heavier weights. For more information, visit http://www.pitbulllovers.com/health-articles/pit-bull-conditioning.html.
Mayb u could get a dog treadmill and weight for him.
4ft, 250-300 lbs.