De or het veekeuring?

The correct Dutch article is:

de veekeuring

Rule Words ending in -ing: almost always de. See the rule

How to use veekeuring

the veekeuringde veekeuring
this veekeuringdeze veekeuring
that veekeuringdie veekeuring
our veekeuringonze veekeuring
your veekeuringjouw veekeuring
every veekeuringelke veekeuring
which veekeuring?welke veekeuring?
a big veekeuring / the big veekeuringeen grote veekeuring, de grote veekeuring