Llamas do not do well in heat. Plan on a full body clip in the spring, including everything; neck, legs, etc. They can get relief from heat with a baby pool, or hose off his feet and belly. Provide shade. We have ceiling fans in our barn when it's hot. Or a fan blowing air through the gate. DO NOT baby him, or treat him like a puppy! Look up "berserk llama syndrome" and you will learn why. Get him used to being touched all over, especially his legs and feet so he will be a more willing participant in hoof trimming. He gets the same vaccines as goats and sheep, only 4cc, not two. I would grain him. He is growing and needs the extra nutrition. Halter break him asap, and he will be a lot easier to manage as well. We built a llama chute for ours that is quite useful.