I didn't realize I would spark such a heated debate! Thanks for sticking up for food animal vets, guys. It may not be the best-understood facet of veterinary medicine, but I believe it has its merits. I guess it's time for me to defend myself, now...
Yes, I have seen a modern broiler (i.e., meat chicken) farm, and the only thing that I might consider disgusting about it is the slight smell of ammonia. Are you talking about the processing plants? I've seen that, too. The birds are killed in a very humane fashion, and after that I can't imagine what would be disgusting--they are going into food production, after all. Just because a poultry vet's patients are destined for death doesn't mean s/he can't have compassion for them, or that they can't live a good life. If you think about it, every vet's patient is ultimately destined for death. And really, sometimes a pet will suffer more before it dies than the chicken does.
I agree that farmers are concerned about profit. They're trying to make a living, just like you and me and everyone else. But let me tell you a secret: the chicken won't grow if it isn't happy and healthy. The hen won't lay an egg if it is stressed. If the farmer kept these animals in truly miserable conditions, the birds would not produce and the farmer would not make a profit. Does this make sense? Because the farmer is interested in profit, he must also be interested in the welfare of his flock. The two concerns are inseparable.
I've talked about the chicken, the farmer, and now it's time to make a bigger connection: economics and the world hunger crisis. When the poultry vet improves profitability, more chicken can be produced at a lower cost. This drives down the price of chicken (chicken is super cheap in GA--the poultry capital of the US), which means that more people can afford a high-quality protein source (I don't mean to hate on vegetarians or vegans, but tofu is not a high-quality protein source based on its amino acid patterns), which means less malnutrition (especially among lower-income classes). Food animals in general are great at converting low-quality food that humans and pets can't eat (think corn stalks, low-quality soybeans, etc.) into a high-quality product that humans can eat. There would be a tremendous waste of crops if we didn't have cattle and other food animals to eat it, and we don't have enough arable land in the world to feed vegetables to all the people in the world. In fact, countries in which malnutrition is a major health concern do not have a reliable source of meat. We don't think about this much in the States because... well, we don't have to.
In conclusion, food animal veterinarians work with everyone's best interests at heart.
Unrelated, but Ladyhitokiri, good luck on ISU! I've only heard good things about them. You're probably more qualified than me... but they're my dream school, too! <3 food animal med!