摘要
在鲫鱼的饲料中添加不同浓度的硝酸稀土进行对比试验,研究稀土元素对鲫鱼生长性能和体内代谢的影响。结果表明,添加45mg/kg的硝酸稀土效果最为明显,可以大大提高鲫鱼的生长速度,显著降低饲料系数(p﹤0.01)、增强抗病力、降低死亡率,还可明显提高鱼体蛋白质和脂肪的含量(p﹤0.05)。
Adding different quantity of rare earth nitrate to the Carassius auratus feed and researching the effect of rare earth on the production performance and nutritional status of Carassius auratus. The result indicates that the effect of adding rare earth nitrate 45mg/kg in the feed was the most obvious, the growth velocity was improved, the feed coefficient was greatly decreased significantly （p 〈 0.01）, the disease resistance ability was enhanced and the mortality rate was reduced, meanwhile the contents of protein and fat in bodies of fish was obviously improved（p 〈 0.05）.
出处
《中国农学通报》
CSCD
2008年第5期481-483,共3页
Chinese Agricultural Science Bulletin
基金
安徽省教育厅自然基金资助(2006KJ031C)
关键词
硝酸稀土
鲫鱼
生长性能
营养状况
rare earth nitrate, Crucian carp, growth performance, nutritional status
