Here is a closer look

I can't help you with the id but are you sure all those plants are the same? In the last picture there is the chewed down shrub/tree which appears to have no thorns that I can see. Just to its right is a non-chewed tree with huge thorns. If they are the same species why would the cattle chew one and not the other?

Probably a combination of Celtis and Zanthoxylum the most common fence line trees in the Eastern half of Texas.

Well, if by "prickly" you mean thorny, then I doubt they're hackberry since they are thornless...and also trees, not shrubs..

Here is a link that might be useful: Hackberry

This post was edited by blakrab on Thu, Feb 13, 14 at 21:59

Not all Hackberries are thornless or tree sized.

Here is a link that might be useful: Desert Hackberry (Celtis pallida)

This post was edited by saltcedar on Thu, Feb 13, 14 at 23:35