|
|||||
|
|
Effect of dietary taurine levels on growth and feeding behavior of juvenile Japanese flounder Paralichthys olivaceus |
|
| Authors: | Shin-Kwon Kim Toshio Takeuchi Masahito Yokoyama Yuko Murata Masaki Kaneniwa Yoshitaka Sakakura |
| Institution: | aGraduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Minato, Tokyo 108-8477, Japan bNational Research Institute of Aquaculture, Tamaki, Mie 519-0423, Japan cNational Research Institute of Fisheries Science, Yokohama, Kanagawa 236-8648, Japan dJapan International Research Center for Agriculture Sciences, Tsukuba, Ibaraki 305-8686, Japan eFaculty of Fisheries, Nagasaki University, Nagasaki 852-8521, Japan |
| Abstract: | This study was conducted to investigate the effect of dietary taurine levels on growth and feeding behavior of juvenile Japanese flounder. Three different taurine level diets were prepared by supplementation of taurine (T-0%, 0.5% and 1.5%) to the basal diet. Fish meal washed with 70% ethanol to remove taurine was used as the sole protein source. Feeding experiments were carried out twice at 20 °C by using different size of fish (average body weight: 0.3 g in Experiment I and 3.7 g in Experiment II). The feeding behavior of fish was observed throughout the experimental period. At the end of experiments, fish were killed for amino acids analysis. The final average body weight and feed efficiency of juvenile Japanese flounder fed the T-1.5% diet was significantly higher than those of fish fed the T-0% diet in Experiments I and II. Abnormal feeding behavior such as multiple feeding while swimming in the water column was observed in the T-0% group in Experiment I. These findings indicate that taurine is essential for normal growth and development of normal feeding behavior of juvenile Japanese flounder. |
| Keywords: | Feeding behavior Growth Japanese flounder Juvenile Taurine |
| 本文献已被 ScienceDirect 等数据库收录！ | |