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Effects of Eicosapentaenoic Acid on Growth and Fatty Acid Composition of the Prawn, Penaeus japonicus クルマエビにおけるエイコサペンタエン酸の成長および脂肪酸組成に及ぼす影響 KANAZAWA, Akio 金沢, 昭夫 TESHIMA, Shin-ichi 手島, 新一 ENDO, Minoru 猿渡, 実 KAYAMA, Mitsu 鹿山, 光 open access In the present study, the effects of eicosapentaenoic acid (20: 5ω3) on growth and fatty acid composition of the prawn, Penaeus japonicus, were investigated and compared with those of linoleic (18: 2ω6), linolenic (18: 3ω3), and docosahexaenoic (22: 6ω3) acids. Six groups of the prawns were maintained on the diets containing lipids as mentioned bellow: 1, 5% oleic acid (18: 1ω9) alone; 2, 4% 18: 1ω9+1% 18: 2ω6; 3, 4% 18: 1ω9+1% 18: 3ω3; 4, 4% 18: 1ω9+1% 20: 5ω3; 5, 4% 18: 1ω9+1% 22: 6ω3; 6, lipid free. The highest weight gain and survival rate were attained in the group of prawns fed the diet containing 4% 18: 1ω9+1% 20: 5ω3. The prawns receiving the diets with 18: 2ω6 or 18: 3ω3 revealed lower weight gains and survival rates than those receiving 20: 5ω3 or 22: 6ω3. The supplementation of either 1% 20: 5ω3 or 22: 6ω3 to the diet containing 4% 18: 1ω9 resulted in the increase of the proportion of ω3 fatty acids such as 20: 5ω3 and 22: 6ω3 in the body of prawns. These data suggest that 20: 5ω3 and/or 22: 6ω3 possess higher activity as essential fatty acids in the prawn, P.japonicus, than 18: 2ω6 and 18: 3ω3. 鹿児島大学 Kagoshima University 1978-12-25 eng departmental bulletin paper VoR http://hdl.handle.net/10232/13109 https://ir.kagoshima-u.ac.jp/records/722 0453087X AN00040498 鹿児島大学水産学部紀要 Memoirs of Faculty of Fisheries Kagoshima University 27 1 35 40 https://ir.kagoshima-u.ac.jp/record/722/files/AN00040498_v27-1_p35-40.pdf application/pdf 572.7 kB 2016-10-27 1978-12-25