Have you given any consideration to a German Shepherd ? Their traits are much like a Catahoula...and they are wonderful herding dogs and protectors...they can live outside too.
I have five GSD's here and could not ask for more of them..they protect all of my animals and are a great with people too...of course they need a lot of training and guidance as what to protect and what is a predator...i.e. foxes and buzzards are common here...as a breed the GSD is highly intelligent and they learn very quickly.
As an aside...I have three Donkeys here...they will bray loudly if a fox ventures near...they are no deterrent! Donkeys also bray at night...so double glazing is a must...! Donkeys are comparative in cost to a dog...donkeys need de-worming and vaccinations...they also need their feet trimming on average four times a year...they need shelter from heat and cold...they eat hay when the grass is not plentiful and if you have 1 acre...you would need to divide into paddocks..donkey poop may be good for the garden...that is a bonus.
I have five GSD's here and could not ask for more of them..they protect all of my animals and are a great with people too...of course they need a lot of training and guidance as what to protect and what is a predator...i.e. foxes and buzzards are common here...as a breed the GSD is highly intelligent and they learn very quickly.
As an aside...I have three Donkeys here...they will bray loudly if a fox ventures near...they are no deterrent! Donkeys also bray at night...so double glazing is a must...! Donkeys are comparative in cost to a dog...donkeys need de-worming and vaccinations...they also need their feet trimming on average four times a year...they need shelter from heat and cold...they eat hay when the grass is not plentiful and if you have 1 acre...you would need to divide into paddocks..donkey poop may be good for the garden...that is a bonus.