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许明珠,张琴,童潼,董兰芳,杨家林,蒋艳,黄国强.饲料铜水平对方格星虫稚虫生长及体组成的影响[J].广西科学院学报,2016,32(3):209-214. [点击复制]
- XU Mingzhu,ZHANG Qin,TONG Tong,DONG Lanfang,YANG Jialin,JIANG Yan,HUANG Guoqiang.Effect of Dietary Copper Level on Growth Performance and Body Composition of Juvenile Peanut Worm, Sipunculus nudus Linnaeus[J].Journal of Guangxi Academy of Sciences,2016,32(3):209-214. [点击复制]
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| 饲料铜水平对方格星虫稚虫生长及体组成的影响 |
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许明珠, 张琴, 童潼, 董兰芳, 杨家林, 蒋艳, 黄国强
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| (广西壮族自治区海洋研究所, 广西海洋生物技术重点实验室, 广西北海 536000) |
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| 摘要: |
| [目的]了解饲料中微量元素铜水平对方格星虫(Sipunculus nudus Linnaeus)稚虫生长及体组成的影响,探索饲料中铜元素的最佳含量。[方法]通过给方格星虫稚虫投喂不同铜水平(2.7 mg/kg,7.5 mg/kg,11.2 mg/kg,19.8 mg/kg,30.4 mg/kg,52.1 mg/kg)的饲料56 d,研究微量元素铜对方格星虫的成活率、增重率(Weight gain rate,WGR)、特定生长率(Specific gain rate,SGR)、体组成成分的影响。[结果]饲料中的微量元素铜水平对方格星虫稚虫的增重率、特定生长率有显著影响(P<0.05)。随着饲料中铜含量的提高,方格星虫稚虫的SGR和WGR都呈先上升后下降,之后再上升的趋势,当饲料铜含量为11.2 mg/kg时,方格星虫稚虫增重率和特定生长率均达到最大值。饲料铜水平对方格星虫稚虫的成活率、体组成成分没有显著影响(P>0.05)。[结论]基础饲料中铜的适宜添加量为7.5~11.2 mg/kg。 |
| 关键词: 方格星虫 铜水平 生长性能 成活率 体组成 |
| DOI：10.13657/j.cnki.gxkxyxb.20160826.008 |
| 投稿时间：2016-04-10 |
| 基金项目:国家自然科学基金项目(31402304),广西科学研究与技术开发计划项目(桂科转13129024,桂科合1346011-12,桂科合14125008-2-20),广西自然科学基金项目(2015GXNSFBB139005)和广西科学院基本科研业务费项目(15YJ22HYS15)资助。 |
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| Effect of Dietary Copper Level on Growth Performance and Body Composition of Juvenile Peanut Worm, Sipunculus nudus Linnaeus |
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XU Mingzhu, ZHANG Qin, TONG Tong, DONG Lanfang, YANG Jialin, JIANG Yan, HUANG Guoqiang
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| (Key Laboratory of Marine Biotechnology of Guangxi, Guangxi Institute of Oceanology, Beihai, Guangxi, 536000, China) |
| Abstract: |
| [Objective] This trial was conducted to investigate the effects of dietary copper levels on growth performance and body composition of juvenile peanut worm, Sipunculus nudus Linnaeus.[Methods] S. nudus juveniles with average body weight of (18.45 ±0.11) mg were fed diets with six copper levels (2.7 mg/kg,7.5 mg/kg,11.2 mg/kg,19.8 mg/kg, 30.4 mg/kg,52.1 mg/kg diet) for 56 d.[Results] The results showed that the dietary copper levels had significant effects on weight gain rate (WGR), specific gain rate (SGR) (P < 0.05). With the increasing of dietary copper levels,WGR and SGR were increased,then decreased in generally, and increased again, and reached the maximum at 11.2 mg/kg. No significant differences were observed in survival ratio (SR),body moisture,body protein content, body lipid content and body ash content of S. nudus among dietary treatments with graded levels of copper (P > 0.05).[Conclusion] The dietary copper levels range which could acquire high WGR were from 7.5 mg/kg to 11.2 mg/kg. |
| Key words: Sipunculus nudus copper level growth performance survival ratio body composition |
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