Your friend will have no chance if she doesn't want to study Japanese first. Everything is taught in Japanese in the Japanese vet schools.
Here's a list of the schools.
School of veterinary medicine in Japan
http://www.hokudai.ac.jp/veteri/ - Faculty of Veterinary Medicine, Hokkaido University.
Obihiro University of Agriculture and Veterinary Medicine - Faculty of Veterinary Medicine, Obihiro University of Agriculture and Veterinary medicine
Faculty of Agriculture and Graduate School of Agriculture, Iwate University - Faculty of Agriculture Department of Veterinary Medicine, Iwate University.
Veterinary Medicine, Tokyo Univ. - Faculty of Agriculture Department of Veterinary Medicine, Tokyo University.
TUAT / University Facilities / Fuchu Campus Map - Faculty of Agriculture Department of Veterinary Medicine, Tokyo University of Agriculture and Technology
Gifu University | Faculty of Applied Biological Sciences/Graduate School of Agriculture - Faculty of Applied Biological Sciences Department of Veterinary Medicine, Gifu University
http://www.vet.osakafu-u.ac.jp/gakka_index.html - Department of Veterinary Science, School of Environmental Sciences, Osaka Prefecture University (Japanese)
Faculty of Agriculture, Tottori Univ. - Faculty of Agriculture School of Veterinary Medicine, Tottori University
staff-f-vet - Faculty of Agriculture Department of Veterinary Medicine, Yamaguchi University
Faculty of Agriculture, University of Miyazaki - Faculty of Agriculture Department of Veterinary Medicine, University of Miyazaki
Outline of Chairs Veterinary Medicine - Faculty of Agriculture Department of Veterinary Medicine, Kagoshima University
Nippon Veterinary and Life Science University [ nvlu.ac.jp ] - Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University
http://hp.brs.nihon-u.ac.jp/%7Evethome/ - College of Bioresource Sciences Department of Veterinary Medicine, Nihon University
http://www.azabu-u.ac.jp/index-e.html - School of Veterinary Medicine, Azabu University
RAKUNO GAKUEN UNIVERSITY/about university - School of Veterinary Medicine, Rakuno Gakuen University
http://www.kitasato-u.ac.jp/daigaku/gakubu/jui_top.html - School of Veterinary Medicine, Kitasato University (Japanese)