I looked at a vet program in Romania through Projects Abroad. I have a feeling that is the program you are speaking of. I was very excited about doing this, but wanted to get my advisor's opinion before I threw myself into it, since they usually prefer a decent length of trip (at least 1 month...) It can easily take up a whole summer.
She told me that it sounded like a lot of fun, but I needed to be careful and find out more information about the educational background of the vets you will be working with. For instance, if your plan is to possibly have them write a LOR for you, you might want to know their background and be sure they would have a decent reputation to the US adcoms. Otherwise, their opinion may not mean as much as a vet here in the US and therefore your time may be better spent in the US. This point is largely what made me decide not to pursue this experience.
The pro's to this program are you get to see a lot of different stuff - lots of farm animals that you may not see as much of in the US. Also, its supposed to be very hands on which is awesome. The con is ...how would the adcoms view it? I would contact some of the schools you are interested in and see what they think of it. If they say it would be a good and helpful experience, go for it! (And maybe let us know what they say if you do contact them...I am curious)
My bottom line: If you already have good experiences in the US and vets to write you LORs and you just want to possibly diversify your experiences, this could be a great way to do that.🙂