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您的检索式：作者名="NAKAGAWA Heisuke"
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| 1 | Effect of dietary docosahexaenoic acid on lipogenesis and lipolysis in black sea bream,Acanthopagrus schlegeli显示文摘Hatchery-reared juvenile black sea breams are characterized by a low level of highly unsaturated fatty acids in their bodies, as compared with wild fish. To assess the effect of docosahaxaenoic acid (DHA) on lipogenic and lipolysis enzymes, one-year fish were reared on a casein-based purified diet and a DHA fortified diet (1.5% DHA ethyl ester/kg diet) for 60 d, followed with a period of 55 d for starvation. Dietary DHA was effectively incorporated into the fish body. Fortification of DHA depressed activities of glucose-6-phosphate dehydrogenase and NADP-isocitrate dehydrogenase as lipogenic enzymes in the hepatopancreas and intraperitoneal fat body. Carnitine palmitoyltransferase as lipolysis enzyme in the hepatopancreas was active in the DHA fortified fish. Starvation after feeding experiment induced increased carnitine palmitoyltransferase activity in both control and DHA fortified fish and the activity remained higher in the DHA fortified fish, while the monoenes were selectively consumed prior to highly unsaturated fatty acids. These results indicated that dietary DHA depressed lipogenesis and activated lipolysis. | JI Hong OM Ahamd Daud YOSHIMATSU Takao UMINO Testuya NAKAGAWA Heisuke FURUHASHI Makoto SAKAMOTO Shuichi | 2007 | Acta Oceanologica Sinica2007，26，1： | 13 |
| 2 | Assessing genetic diversity of wild populations of Japanese flounderusing AFLP markers显示文摘Amplified fragment length polymorphism (AFLP) analysis was used to evaluate the genetic diversity of four wild geographical populations of Japanese flounder (Paralichthys olivaceus). A total of 775 loci (58.32% of which was polymorphic) in the range between 100 and 1 300 base pairs were detected from 110 individuals using seven primer combinations. The percentage of polymorphic loci detected by single primer combination for each population was calculated, ranging from 19.59% to 53.33%. Genetic similarities within and among the populations were calculated from the binary matrices of presence-absence. Phylogenetic tree of four populations was constructed by using the UPGMA method using PHYLIP Version 3.5. According to intrapopulation genetic similarities, CW population displayed the highest genetic diversity value and KY population had the lowest genetic diversity value. The distance between CW and CF populations was the farthest, which was possibly resulted from the farthest distance of Weihai of Shandong and Fujian of China compared with the geographical distance between other locations of populations. The subpopulation differentiation value (G_ st ) is 0.356 5, showing a certain extent of differentiation among the four geographical populations. AFLP technology was confirmed to be an effective tool to assess within-and among-population genetic diversity of Japanese flounder. The present survey provided significant insights for research in the Japanese flounder breeding program. | XU Xiaofei ZHANG Quanqi WANG Zhigang QI Jie ZHANG Zhifeng BAO Zhenmin Heisuke Nakagawa | 2006 | Acta Oceanologica Sinica2006，25，3： | 7 |
| 3 | Usefulness of Ascophyllum meal as a feed additive for red sea bream,Pagrus major显示文摘 | Tetsuya Umion Yoshihori Tasaka | 1997 | Aquaculture1997，151，： | 1 |
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