Yeah I didn't list all my rotations. We've all been/are going to vet school and know what types of rotations people have to do. I definitely didn't list services I shadowed on during the 1-3 years. I only put the ones that were directly applicable to my application. For example, I was applying to clin path residencies so I listed my externships at MPI Research, the University of Florida, Colorado State University, and a special advanced diagnostic medicine elective plus time spent with pathologists at the microscope reviewing cases.
I can understand wanting them on there since they seem important now, but by 4th year, what you did first year will likely be minimally relevant. I don't say that to knock you down and I didn't go to UIUC so I don't know what your rotations actually do, so take it with a grain of salt. But the watching I did first year, while valuable, was nothing like really being involved in the case as a senior. If you need/want them on there for now, I'd view it like I do keeping high school stuff on a resume. It's okay to leave your HS stuff on there for the first semester of undergrad, but it's time to take it off come sophomore year. This is basically the same kind of thing, it's okay now but it should be replaced by better experience as you progress through the program.