Science and Education Publishing Research in Psychology and Behavioral Sciences 2333-438X 3 1 2015 02 11 Refusal of Food Ingestion of Old Male BUF/Mna Rats in Metabolic Cages 5 6 EN Mutsushi Matsuyama Department of Cell Biology and Anatomy, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake-shi, Aichi-ken Japan Kazuo Kato RPBS2015312 10.12691/rpbs-3-1-2 2014 10 23 2015 02 02 2015 02 11 Forty-four percent of old male BUF/Mna rats showed refusal of food intake when they were isolated in metabolic cages.