Heat stress is especially an issue here in the Arizona desert.  The key to managing heat stress is prevention and vigilance. During hot times of the year you should check your animals several times a day and have preventative measures in place.  It can start getting dangerously warm even in the early spring, so start preparing your farm or ranch for these conditions well before they occur.

Hay

Forages such as grass or grass hay should make up the majority of the diet for llamas and alpacas. Additionally a small amount of alfalfa hay can be fed to growing, pregnant and lactating camelids. Alfalfa hay should only be fed sparingly to non-pregnant females and males. High percentages of alfalfa in the diet can increase the risk of urinary stones and blockages, which can be fatal.

Preventive Medicine for Alpacas & Llamas