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題名 | Effect of Dietary Lipid Level on Growth and Muscle Composition of Varicorhinus Barbatulus=飼料脂質含量對臺灣鏟頜魚成長與肌肉組成之影響 |
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作者 | 黃承輝; 熊文俊; | 書刊名 | 臺灣水產學會刊 |
卷期 | 26:2 1999.06[民88.06] |
頁次 | 頁95-102 |
分類號 | 439.5 |
關鍵詞 | 臺灣鏟頜魚; 最適脂質需求; 魚類營養; Dietary lipid requirement; Fish nutrition; Varicorhinus barbatulus; |
語文 | 英文(English) |
中文摘要 | 本研究以含有0.2到19.6%油脂的純化飼糧飼予臺灣鏟頜魚、幼魚,經八週飼養 期後,觀察其成長指標與肌肉組成以探討飼料脂質含量對臺灣鏟頜魚的影響。飼予9.4與 16.1%脂質的試驗魚,在特異成長率、增重、飼料轉換率與蛋白質效益比方面,皆比其他 各組為佳(P<0.06);各組之魚體肌肉蛋白質則沒有差異(P>0.06),但是飼予高脂質飼料 的魚體肌肉則含有較高的脂質與較低的水分(P<0.06)。使用增重率為指標,以二次迴歸 模式分析其最佳成長所需的飼料脂質含量為12%。而其最低需求量則在5到10%之間。 |
英文摘要 | The effects of dietary lipid level on growth and muscle composition of juvenile Varicorhinus barbatulus were investigated using a one to one blend of menhaden fish oil and soybean oil as the lipid source. Six purified, isoenergetic and isonitrogenous diets containing 0.2, 2.6, 4.5, 9.4, 16.1, and 19.6% lipids were fed to triplicate groups of 10 juvenile V. barbatulus for 8 weeks. Specific growth rates (SGR), weight gains (WG), feed conversion ratios (FCR), and protein efficiency ratios (PER) for fish fed 9.4 and 16.1% dietary lipids were significantly (P < 0.05) better than those fed other experimental diets. Crude protein content of fish muscle was not affected by the lipid level in diets (P > 0.05). Whereas, fish fed on high lipid diets ( 16.1 and 19.6%) had high lipid and low moisture contents in their muscle. When analyzed by second-order polynomial regression, using weight gain as the indicator, the optimal dietary lipid level for maximal growth of V. barbatulus was 12%. The minimal dietary lipid level for V. barbatulus was between 5 and 10%. |
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