Actually most of them (according to a friend who works for a large animal hospital and has some human EMS background) are intubated far easier than humans - and they place a "hand safer" device (if you're old enough to remember the "plastic screw device"-I don't actually remember the actual name- used to open a seizure patients jaw that were once used, they are similar).

Back in my training day we used cats to practice neonatal intubation.