Hey...I'm glad to hear there are people out there who didn't grow up on a farm who are even interested in doing it! I did, and I've been around cattle all my life. I have a degree in animal science (and a masters in ruminant nutrition), and I ended up going back to school later on to earn another degree in graphic design. I've always been interested in art and design, but I did what I thought I was supposed to do first instead of what I think I was REALLY supposed to do...
I do love the cattle, though, and I can't imagine my life without being involved in cattle. My dad and I have a herd together now, and I also manage another farm for a doctor who we met as a customer. And I do art and freelance design work in addition. Do what you love and follow your own path. Enjoy school and meet people. You will be surprised how many doors will open because of relationships and the network of people around you...people with the same kinds of interests and passion in their world. If you haven't chosen a school, look for a program that will put you on a path you want to be on, and then do what it takes to go there and be active in activities on campus. Judging teams were probably some of my favorite and most rewarding activities, and I trained and participated on any of them I could work into my schedule. Internships or work study programs are all good...you travel, you meet people, and you learn things that will help you down the road. And don't get in a hurry. Give yourself time and enjoy the journey. There's no big rush. Plus you never know what path you'll run by before you noticed the fork you should have taken.
Good luck.