pathfinder 1e – How to recover a destroyed skeleton?

You cannot

Other than using a wish or miracle, or bringing the target back to life and killing her once more, there are no other ways to restore a destroyed skeleton in the official rules.

There is only one official spell that will even work on destroyed undead: geb’s hammer, and it will not restore it. Other than that, we enter into the discussion of “are bodies objects”? that I rather not, as its entirelly GM fiat.

Your third best option would be to cast true resssurrection, which is a terrible waste of resources:

This spell can even bring back creatures whose bodies have been destroyed

Your second best option would be to have a friend druid or ranger use the spell call animal, capture another tiger and do you know what to have another tiger skeleton available.

Finally, your best option is…

Create bloody skeletons instead

The bloody skeleton template can be applied instead of the regular template, but it will cost you twice the amount of HD to create and keep them. However, they come with a great advantage over other types of skeletons:

Deathless (Su)

A bloody skeleton is destroyed when reduced to 0 hit points, but it returns to unlife 1 hour later at 1 hit point, allowing its fast healing thereafter to resume healing it. A bloody skeleton can be permanently destroyed if it is destroyed by positive energy, if it is reduced to 0 hit points in the area of a bless or hallow spell, or if its remains are sprinkled with a vial of holy water.

The rules for creating bloody skeletons can be found on the Bestiary (p.251):

Numerous variant skeletons exist, such as those whose bones burn with an unending fire and those who drip with gore and reassemble themselves over time. Both of these variant skeletons can be created using animate dead,but they count as twice their normal number of Hit Dice per casting. Once controlled, they count normally against the controller’s limit.

This will not bring your tiger back, but will allow you to keep your next tiger around for much longer, as very few enemies carry holy water around, and you probably will know when you are fighting on holy ground.