摘要
研究了在豆粕型饲料中添加不同浓度的蛋氨酸对江黄颡鱼生长的影响。试验鱼分为3个组,蛋氨酸的添加量分别为0、0.2%、0.4%,分别对应Ⅰ、Ⅱ、Ⅲ组,Ⅰ组设为对照组,饲养周期为8周。试验结果表明,Ⅱ组、Ⅲ组的质量增长率显著高于对照组（P〈0.05）,其中Ⅱ组质量增长率最高（176.22±3.56）%;Ⅱ组的成活率显著高于对照组（P〈0.05）;各组的饲料系数与对照组比较无显著性差异（P〉0.05）,Ⅲ组饲料系数最小（2.60±0.13）;各试验组之间的摄食量差异不显著（P〉0.05）,Ⅱ组的摄食量较对照组高12.50%。在本研究条件下,建议蛋氨酸的添加量为0.2%~0.4%。
An 8 week feeding experiment was conducted to evaluate the influence of supplementation of methionine（0,0.2%,and 0.4%）in soybean meal-based diets on growth of yellow catfish Pelteobagrus vachelli.There were significantly higher weight gain in the fish fed the diets containing 0.2%,and 0.4% of methionine than in the fish fed the diet containing 0% of methionine（P〈0.05）.The peak weight gain（176.22±3.56）% and significantly higher survival rate were observed in the fish fed the diets containing 0.2% of methionine（P〈0.05）.There were no significant differences in feed conversion ratio and food consumption（P〉0.05）among the experimental groups.Between every groups,even though the fish fed the diet supplemented with 0.2% of methionine had 12.50% higher food consumption and lowest diet ratio in the contorl group（2.60±0.13）.Therefore,under this condition,it is suggested that the optimal supplementation of methionine in the yellow catfish diets be 0.2%～0.4%.
出处
《水产科学》
CAS
北大核心
2010年第2期99-101,共3页
Fisheries Science
基金
广西壮族自治区科技厅攻关项目(0537008-2A)
广西自然科学基金资助项目(桂科自0728022)
关键词
江黄颡鱼
蛋氨酸
生长
Pelteobagrus vachelli
methionine
growth
作者简介
陈涛（1982-），男，硕士研究生，研究方向：水产动物营养；E-mail：t_chen_1982@163．com．
通讯作者；黄凯（1963-），男，教授，博士，研究方向；水产动物营养学和集约化水产养殖学E-mail：hkai110@163．com．
