For a land with medium rainfall which hedge plant species can be used for creating fence. Plants that should prevent entrance of animals like goats and cows and ideally its leaves should not be edible for herbivores. And they should not require abundance of water. Even great if there are options that produce fruits or other byproduct. Climate varies from 28 to 115°F (-2 to 46°C).
Thinking about Carissa Carandas but not sure if animals eat it.
If you are looking for some low fence against rabbits, planting Rosa rugosa close to each other might be helpful:
Rosa rugosa (rugosa rose, beach rose, Japanese rose, Ramanas rose, or letchberry) is a species of rose native to eastern Asia, in northeastern China, Japan, Korea and southeastern Siberia, where it grows on beach coasts, often on sand dunes.
On the islands of the North Sea it is used for that purpose, and you may use the fruits e.g. for rose hip jam.
A traditional central-European concept are the sunken lanes around fields which have hedges on both sides, usually a wide mixture of different plants. Often, common hazel and wild plums of different variations are part of these hedges.
I like Arborvitae for living hedges. A cultivar like Emerald Green. My customers love them. They won't keep animals out.
