If you're speaking of the gelatinous substance that snails produce in which to put their eggs? Then no, shrimp do not eat that.
I have four ghost shrimp in my tank, as well as three snails. Every time they reproduce, I have to clean up the goo. Most of the time, the shrimp are oblivious to its existence as they are bottom feeders and snails lay their eggs at the water's surface or under floating plant leaves.