Effects of dietary protein level on growth performance, nitrogen and energy budget of juvenile hybrid sturgeon, Acipenser baerii female xA. gueldenstaedtii male
文献类型：期刊论文
| 作者 | Guo, Zhiqiang1,2; Zhu, Xiaoming1; Liu, Jiashou1; Han, Dong1; Yang, Yunxia1; Lan, Zeqiao3; Xie, Shouqi1 |
| 刊名 | AQUACULTURE
 |
| 出版日期 | 2012-03-29 |
| 卷号 | 338期号:-页码:89-95 |
| 关键词 | Hybrid sturgeon Optimal protein level Energy and nitrogen budget Feed utilization |
| ISSN号 | 0044-8486 |
| 通讯作者 | Zhu, XM (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China. |
| 中文摘要 | An 8-week growth trial was conducted to estimate the optimal dietary protein level for juvenile hybrid sturgeon. Acipenser baerii female xA. gueldenstaedtii male (initial body weight, 25.1 +/- 0.12 g). Effects of protein levels on nitrogen and energy budget of the fish were studied. Seven isoenergetic diets were formulated to contain seven levels of crude protein (250, 300, 350, 400, 450, 500 and 550 g kg(-1)) and each diet was fed to triplicate groups of fifty fish at 21.4 +/- 0.6 degrees C in twenty one 1 m(3) concrete tanks. The results showed that specific growth rate (SGR) increased when dietary protein levels increased from 250 to 400 g kg(-1) and then decreased significantly. Feed intake (FI) decreased steadily with increasing dietary protein levels. Fish fed 250 g kg(-1) protein diets showed the lowest feed efficiency (FE), and those fed 500 and 550 g kg(-1) protein diets showed significantly higher values than the other diets except 450 g kg(-1). Protein retention efficiency (PRE) was highest in 250-300 g kg(-1) groups, followed by 350-500 g kg(-1) groups and was significantly lower in 550 g kg(-1) group. Proportions of nitrogen intake (CN) allocated to excretory nitrogen (UN) were lowest in 250-300 g kg(-1) protein diets, followed by 350-500 g kg(-1) protein diets and highest in 550 g kg(-1) protein diet, whereas recovered (growth) nitrogen (RN) followed the inverse pattern with UN. Percentages of gross energy intake (IE) used for excretory energy (UE) increased steadily when dietary protein levels increased. Fish fed 400-550 g kg(-1) protein diets showed significantly higher proportion of metabolizable energy (ME) than those fed 250-350 g kg(-1) protein diets. The lowest and highest percentages of recovered (growth) (RE) were observed in 250 and 550 g kg(-1) groups. Nitrogen and energy budget equation of the fish fed 350 g kg(-1) protein diet was 100CN = 11.72FN + 58.78UN + 29.50RN and 100 IE = 35.08FE + 4.53UE + 34.16ME + 26.23RE. Five-parameter saturation kinetic model and second-order polynomial regression analysis indicated that the optimal dietary protein level for maximal growth of the fish was 340 and 370 g kg(-1). Diets with excessive protein contents not only resulted in inferior growth performance but also high proportions of protein and energy used for excretion. (c) 2012 Elsevier B.V. All rights reserved. |
| 英文摘要 | An 8-week growth trial was conducted to estimate the optimal dietary protein level for juvenile hybrid sturgeon. Acipenser baerii female xA. gueldenstaedtii male (initial body weight, 25.1 +/- 0.12 g). Effects of protein levels on nitrogen and energy budget of the fish were studied. Seven isoenergetic diets were formulated to contain seven levels of crude protein (250, 300, 350, 400, 450, 500 and 550 g kg(-1)) and each diet was fed to triplicate groups of fifty fish at 21.4 +/- 0.6 degrees C in twenty one 1 m(3) concrete tanks. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Fisheries ; Marine & Freshwater Biology |
| 研究领域[WOS] | Fisheries ; Marine & Freshwater Biology |
| 关键词[WOS] | ONCORHYNCHUS-MYKISS ; CARCASS COMPOSITION ; WHITE STURGEON ; RAINBOW-TROUT ; WEIGHT-LOSS ; BODY-SIZE ; EXCRETION ; REQUIREMENT ; AMMONIA ; FISH |
| 收录类别 | SCI |
| 资助信息 | Natural Science Foundation of China[31072225]; Social Fund for Agro-scientific Research in the Public Interest[201003020]; Fund Project in State Key Laboratory of Freshwater Ecology and Biotechnology[008FBZ05]; Key technology of sturgeon industry and its demonstration[800479983] |
| 语种 | 英语 |
| WOS记录号 | WOS:000304290700012 |
| 公开日期 | 2012-09-25 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/16857]  |
| 专题 | 水生生物研究所_淡水生态学研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Hubei Tianxia Sturgeon Co Ltd, Yichang 443300, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Zhiqiang,Zhu, Xiaoming,Liu, Jiashou,et al. Effects of dietary protein level on growth performance, nitrogen and energy budget of juvenile hybrid sturgeon, Acipenser baerii female xA. gueldenstaedtii male[J]. AQUACULTURE,2012,338(-):89-95. |
| APA | Guo, Zhiqiang.,Zhu, Xiaoming.,Liu, Jiashou.,Han, Dong.,Yang, Yunxia.,...&Xie, Shouqi.(2012).Effects of dietary protein level on growth performance, nitrogen and energy budget of juvenile hybrid sturgeon, Acipenser baerii female xA. gueldenstaedtii male.AQUACULTURE,338(-),89-95. |
| MLA | Guo, Zhiqiang,et al."Effects of dietary protein level on growth performance, nitrogen and energy budget of juvenile hybrid sturgeon, Acipenser baerii female xA. gueldenstaedtii male".AQUACULTURE 338.-(2012):89-95. |
入库方式： OAI收割
来源：水生生物研究所
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