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題名 | Quantifying the Dietary Protein and Lipid Requirements of Marble Eel, Anguilla marmorata, with Different Body Weight=不同體重鱸鰻(Anguilla marmorata)之蛋白質與脂質需求量 |
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作 者 | 鄭文騰; 賴慈笙; 林鈺鴻; | 書刊名 | 臺灣水產學會刊 |
卷期 | 40:2 2013.06[民102.06] |
頁次 | 頁135-142 |
分類號 | 439.5 |
關鍵詞 | 鱸鰻; 蛋白質; 脂質; 營養需求; 體重; Marble eel; Protein; Lipid; Nutrient requirements; Body weight; |
語文 | 英文(English) |
中文摘要 | 本研究以四個成長實驗定量不同體重鱸鰻(Anguilla marmorata)之蛋白質與脂質需求量,分別以含四種蛋白質(40,45,50及55%)與五種脂質含量(5,8,11,14及17%)飼料進行實驗,每種飼料均餵以三重複,每缸80尾魚,平均初重為2.29(實驗一)、21.97(實驗二)、7.52(實驗三)及14.74g(實驗四),於流水式養殖系統中飼養八週。結果顯示:實驗一,餵食50及55%蛋白質組之魚體增重顯著高於其他飼料組(P<0.05),飼料轉換率則以50及55%蛋白質組最佳,其次為45%組,以40%組最差。實驗二,增重與飼料轉換率均以45-55%蛋白質組優於40%組。實驗三,餵食8%脂質之鱸鰻增重顯著高於其他實驗組。實驗四,餵食5-8%脂質組之增重顯著最高,其次為11及17%兩組,以14%組最低,飼料轉換率則以5及8%脂質兩組顯著高於其餘各組。本研究結果指出,初始體重2.29及21.97g之鱸鰻,蛋白質需求量分別為50及45%。無論初始體重為何,鱸鰻脂質之需求量均為8%。 |
英文摘要 | Four growth trials were conducted to quantify the dietary protein and lipid requirements for marble eel, Anguilla marmorata, with different body weight. Experimental diets containing four protein (40, 45, 50 and 55%) (Exp. 1 & 2) or five lipid levels (5, 8, 11, 14 and 17%) (Exp. 3 & 4) were fed to triplicates of eel. Triplicate groups of fish [initial body weight: 2.29 (Exp. 1), 21.97 (Exp. 2), 7.52 (Exp. 3) and 14.74 g (Exp. 4)] were fed with each experimental diet for 8 weeks in a flow-through rearing system. In Exp. 1, fish fed 50 and 55% protein diets had significantly higher (P < 0.05) weight gain (WG) than those fed other dietary treatments. Feed conversion rate (FCR) was best in the groups fed diets with 50 and 55% protein, followed by the group fed diet with 45% protein, and lowest in the group fed diet with 40% protein. In Exp. 2, WG and FCR were better in fish fed with 45-55% protein diets than those in fish fed with 40% protein diet. In Exp. 3, fish fed with 8% lipid diet had higher WG than those fed other dietary treatments. In Exp. 4, fish fed with 5-8% lipid diets had highest WG, followed by 11 and 17% groups, and lowest in fish fed with 14% lipid diet. FCR was better in fish fed with 5 and 8% lipid diet than other dietary treatments. Results indicated that marble eel requires 50 and 45% of dietary protein for maximal growth while their body weight were 2.29 and 21.97 g, respectively. The dietary lipid requirements for the species were 8%, regardless of their body weight. |
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