Join Date: May 2009
Location: Mid Northern TN
Believe it or not, you really don't want him growing TOO quickly- look up all you can about OCD (the joint problem) online. The highest risk factors are genetic predisposition and a too high calorie/fast growth diet. I can't remember if high calcium was a problem or not.
Slow and steady is best. Alfalfa is a great diet, but grass hay is fine too assuming it's good quality (which can be hard to tell without any sort of analysis). For example, the coastal hay I bought this year came in at 15% protein when tested! That's higher than some alfalfas, and more than enough for my guy. Any chance you know anything about the hay you have?