@article{oai:kochi.repo.nii.ac.jp:00002086, author = {Ruchimat, Toni and Masumoto, Toshiro and Mori, Shinji and Hosokawa, Hidetsuyo and Shimeno, Sadao}, journal = {Bulletin of marine sciences and fisheries, Kochi University}, month = {Dec}, note = {application/pdf, Post-feeding non-fecal nitrogen excretion was determined for juvenile yellowtail in a closed tank system. The highest ammonia excretion value was noticeable 2 hr post-feeding, while the urea excretion rate was highest at 4 hr post-feeding. The ammonia excretion rate of fish fed the lowest ration (1.4%bw) was a half of that of fish fed the highest ration (4.1% bw). The equivalent energy value from ammonia was in the range of 8.7 to 18.0 (KJ/kg bw/day) under present feeding condition.}, pages = {63--68}, title = {Effect of ration level on non-fecal nitrogen excretion of juvenile yellowtail (Seriola quinqueradiata)}, volume = {17}, year = {1997} }