I got my first boar last July when he was 3 months old. A few months later, I got him a brother around October of last year, at the time he was also 3 months. My first boar is now 11 months and 9 inches long. While my second one is now 8 months and only 6 inches. They have a regular supply of oxbow pellets and timothy hay, as well as veggies. But they've been this size since December and I'm worried they aren't getting their needed nutrition.