Take it out of stable.
Stand in front of the pet or very close to it.
Open Inventory.
Click the food icon (yes, you know this, I just try to be exact).
Drag and drop the nutrios on your pet.
Release mouse button.
The pet now eats for about 5-7 seconds. The daikiba animation is: it sits down and eats, exaros and snables act similar to the great button (afaik different animation, but looks very similar).
Note:
MA did not implement and "zones" to the mobs, so the server cannot see, if you drag it to the head or the... butt.
