Ok so I just recently got an of the track thoroughbred. When I picked her up I asked what she ate but the people were not very specific just 11% sweet feed and how much she ate is what I got from them. I ended up getting the southern states legends performance sweet feed, because it is also a 11% feed. I am worried that something might be up. I have been feeding her the same amount at around the same time she was fed when at the track, but she has not pooped much today. I went to the barn this morning and there was some manure and a lot of pee. This afternoon there was no manure, but still plenty of pee. She has been eating her hay and feed as well as drinking her water. She also passed gas this afternoon when I was there. I'm just a little worried about her since I know that making quick change in feed can cause problems for them. I plan on calling the vet in the morning if there is still no poop.