Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Kawada, R. and Miwa, M. and Okuno, Y. and Ishizawa, N. and Oba, S.",Nitrogen balance on import/export of feed and excretion for poultry layer in Japan,日本家禽学会誌,0029-0254,つくば : 日本家禽学会,2021-10,58,2,74-81,https://cir.nii.ac.jp/crid/1050577043859710848,