**About the Editor**

**Shozo Tomonaga** earned his Ph.D. in Agriculture from Kyushu University in March 2008. He was a JSPS Postdoctoral Fellow from April 2008 to October 2009. From October 2009, he was an assistant professor in Kyushu University. In April 2012, he moved to Kyoto University as an assistant professor. He is a scientist in Animal Science. He has investigated the dietary effects of imidazole dipeptides, especially carnosine. He is interested in stress and studied nutritional metabolism during stressful conditions. He has challenged applications of metabolomics in Animal Science by GC-MS and LC-MS.
