摘要
以 1 5 0g左右的 1 70只中华鳖为试验动物 ,随机分为 1 7个组。以饲料能量、蛋白质水平为试验因素 ,采用 2因子 5水平的回归正交旋转组合设计得到 9个试验饲料营养组合 ,与 1 6个组试验动物相对应 ,进行 6 0d饲养试验。试验结果 ,第 9～ 1 6组鳖日增重 2 .2 2g/d极显著地高于其它试验组 (p <0 .0 1 ) ,比增设的对照组 1 .38g/d高 6 0 .87% (p <0 .0 1 ) ,其饲料系数为 1 .43,较其它组低 1 2 .2 7%～ 45 .0 0 % ,较对照组 (1 .97)低2 7.41 %。结果表明 ,9号饲料能量 1 6 .2 8MJ/kg、蛋白质 42 .49%水平及其必需氨基酸模式适宜于生长幼鳖的营养需要 ,肌肉RNA/DNA值与饲料营养水平和日增重有高度的正相关关系。
Using two-factor, five-level, orthogonal regression rotational combination design, 170 turtles with an average initial weight of 150g, were randomly divided into 17 groups (one control and 16 treatments) in feeding trial for 60d to study the optimal levels of energy, crude protein (CP) and essential amino acid (EAA) model. Average daily gain (ADG) of group 9-16 (2.22g/d) was significantly higher (p<0.01) than those of the others, and 60.87% higher (p<0.01) than the control (1.38g/d). Compared with the control and other treatments, FCR of group 9-16 was 1.43, 27.41% and 12.27%-45.00% lower, respectively. It is concluded that the levels of energy (16.28MJ/kg), CP (42.49%) and EAA model of the ninth diet were suitable to nutrient requirement of growing turtle. There was a strongly positive correlation between RNA to DNA ratio of turtle muscle and nutrient level and daily gain.
出处
《水产学报》
CAS
CSCD
北大核心
2000年第1期46-48,49,50,51,共6页
Journal of Fisheries of China
基金
国家"八五"重点科技攻关资助![特种 (产 )动物 (香猪
狸
貂
鹿
甲鱼
实验鼠
免 )营养参数及饲料配制技术 ]
85 16 0 2 0 5号
