摘要
采用四因素三水平L_9(3~4)正交试验设计,制成蛋白质含量为25%、30%、35%,脂肪含量为4%、8%、12%,糖含量20%、25%、30%,纤维素含量1.6%~2.0%、2.0%~2.4%、2.4%~2.8%的9种泥鳅幼鱼配合饲料,进行为期38 d的饲养试验,以探讨初始体重为(1.23±0.09)g的泥鳅幼鱼配合饲料中蛋白质、脂肪、糖、纤维素的适宜含量。结果表明,各营养素对泥鳅幼鱼增重率、特定生长率、蛋白质效率的影响顺序为:蛋白质>脂肪>纤维素>糖;当配合饲料中粗蛋白质为35%,脂肪为8%,糖为25%~30%,粗纤维为1.6%~2.0%时,泥鳅幼鱼的WGR、SGR最大,PER最高,FCR最小,CF各组间无显著差异(P>0.05)。通过综合分析,在本试验条件下,蛋白质为主要营养素(P<0.05),脂肪、纤维素、糖的作用并不明显(P>0.05),泥鳅幼鱼配合饲料中蛋白质、脂肪、糖和纤维素的适宜含量分别为35%、8%、25%~30%、1.6%~2.0%。
The optimum contents of protein, fat, carbohydrate and cellulose in the formulated diet of Misgurnus anguillcaudatus juvenile with initial weight of （1.23＋0.09） g were studied. The L9（3^4） table of orthogonal design method was employed to formulate nine diet combinations, while each nutrient in the components was designed as 3 levels： protein 25%, 30%, 35%; fat d%, 8%, 12%; carbohydrate 20%, 25%, 30%; cellulose 1.6%-2.0%, 2.0%~2.4%, 2.4%-2.8%. After feeding for 38 days, the result of experiment show that the effects of nutrients on the weight gain rate（WGR）, specific growth rate （SGR） and protein efficiency ratio（PER） ranked in the following order： protein〉fat〉cellulose〉carbohy- drate. When the feed contains protein 35%, fat 8%, carbohydrate 30% and cellulose 1.6%~2.0%, the WGR,SGR and PER of Misgurnus anguillcaudatus juvenile were the highest, the lowest FCR, and the differences of CF in all the groups were not significant （P〉0.05）. By comprehensive analysis and comparison, it is concluded that protein was the main nutrient （P〈0.05）, while the effects of fat, cellulose and carbohydrate were not so pronounced in the present experiment. The optimum contents of various nutrition in the formulated diet of Misgurnus anguilleaudatus juvenile were found to be： crude protein 35%, fat 8%, carbohydrate 25%~30%, cellulose 1.6%~2.0%.
作者
杨明容
李达
曹岩
Yang Mingrong Li Da Cao Yan
出处
《饲料工业》
北大核心
2017年第10期15-20,共6页
Feed Industry
基金
江西省教育厅科技研究项目资助[GJJ11666]
关键词
泥鳅
配合饲料
蛋白质
脂肪
糖
纤维素
需求量
Misgurnus anguillcaudatus
formulated diet
protein
fat
carDonyurate
cellulose
optimum contents
