This is why they do it.
That is entirely correct. An 18D (SF Medic) is trained in veterinary science as well as human medicine. The goal of SF is to train and encourage indigenous people to oppose oppressive armies. One aspect of this training is the recognition that animals as a source of labor (water buffalo, horses, camels, donkeys etc) are very important to a people's survival. In fact, in the last phase of a SF Medic's training, the cadre shoot a goat with a .22 rifle and the candidate must keep the animal alive. If it dies, he fails.
This article is amazing.
This is true. My grandfather was an old muleskinner, and several of his friends trained Green Berets in this very subject back in the 80's, I think at Fort Huachuca in Arizona.
-ccm