question

I was going to say try Spanish. Call the person you got the dog from and ask what commands where used. I would disagree with Waylon on this. Because the dog was used before any real introduction. Put the dog in the yard and let the dog learn you are the knew one in charge. Then of the dog does not work cull. At five I would not give much room for learning.

I do not work cattle but got two Catahoulas and went straight to a pen. One wanted out of that pen and to get as far away from the pig as possible. The other only looked at the pig to avoid getting hit and as far as I was concerned was a flat out cull. I was told that they sometimes take time to warm up. The one that wanted out never did hunt. The other one after about a week of my sitting next to the food bowl came around.

So will the dog work who knows. Find out what commands were used in what language. Then I would not give more than a week. If the dog won't work cattle then you won't hurt nothing seeing what he will do with a pig. Just my two cents.