The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.)
文献类型：期刊论文
| 作者 | Li Yong; Jiang Keyong; Sun Guoxiang; Gao Tingting ; Zhou Bangwei
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| 刊名 | CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| 出版日期 | 2011-09-01 |
| 卷号 | 29期号:5页码:1002-1008 |
| 关键词 | Eco-nutrition Requirement Rhomb Characteristics Protein Aquatic Quality Digestion Turbot |
| ISSN号 | 0254-4059 |
| DOI | 10.1007/s00343-011-0072-0 |
| 文献子类 | Article |
| 英文摘要 | We evaluated the dietary protein requirements of juvenile turbot (Scophthalmus maximus L.) and their effects on aquatic quality. Five experimental diets were formulated containing 450, 480, 500, 520, and 540 g/kg. Each diet was randomly assigned to triplicate groups of juvenile turbot (mean initial body weight 34.5 +/- 5.5 g) for 88 d. Both the weight gain ratio and feed efficiency increased with increasing dietary protein up to 500 g/kg, but no further improvement was detected when dietary protein levels were > 500 g/kg. Protein intake and digestion increased with protein levels, while fecal nitrogen and nitrogen content in seawater increased only when dietary protein exceeded 500 g/kg. Protein digestibility was highest at intermediate dietary protein levels. Chemical oxygen demand, nitrite-nitrogen (NO (2) (-) -N) and phosphatic-phosphor (PO (4) (3-) -P) levels increased in the rearing water as dietary protein levels increased. The optimum eco-nutrition level of dietary protein for juvenile turbot was 500 g/kg under the current experimental conditions. The diets containing 540 and 500 g/kg protein had similar growth rates and feed conversion ratios, but levels of ammonia (NH (4) (+) ) and nitrogen were considerably higher in the water and feces, respectively, at the higher level of dietary protein. The difference in the pattern of change between body weight gain and ammonia concentration in water with increasing dietary protein is described by rhomb characteristics.; We evaluated the dietary protein requirements of juvenile turbot (Scophthalmus maximus L.) and their effects on aquatic quality. Five experimental diets were formulated containing 450, 480, 500, 520, and 540 g/kg. Each diet was randomly assigned to triplicate groups of juvenile turbot (mean initial body weight 34.5 +/- 5.5 g) for 88 d. Both the weight gain ratio and feed efficiency increased with increasing dietary protein up to 500 g/kg, but no further improvement was detected when dietary protein levels were > 500 g/kg. Protein intake and digestion increased with protein levels, while fecal nitrogen and nitrogen content in seawater increased only when dietary protein exceeded 500 g/kg. Protein digestibility was highest at intermediate dietary protein levels. Chemical oxygen demand, nitrite-nitrogen (NO (2) (-) -N) and phosphatic-phosphor (PO (4) (3-) -P) levels increased in the rearing water as dietary protein levels increased. The optimum eco-nutrition level of dietary protein for juvenile turbot was 500 g/kg under the current experimental conditions. The diets containing 540 and 500 g/kg protein had similar growth rates and feed conversion ratios, but levels of ammonia (NH (4) (+) ) and nitrogen were considerably higher in the water and feces, respectively, at the higher level of dietary protein. The difference in the pattern of change between body weight gain and ammonia concentration in water with increasing dietary protein is described by rhomb characteristics. |
| 学科主题 | Marine & Freshwater Biology ; Oceanography |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000293632500012 |
| 公开日期 | 2012-07-03 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/12050]  |
| 专题 | 海洋研究所_海洋生物技术研发中心 海洋研究所_实验海洋生物学重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Yong,Jiang Keyong,Sun Guoxiang,et al. The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.)[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2011,29(5):1002-1008. |
| APA | Li Yong,Jiang Keyong,Sun Guoxiang,Gao Tingting,&Zhou Bangwei.(2011).The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.).CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,29(5),1002-1008. |
| MLA | Li Yong,et al."The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.)".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 29.5(2011):1002-1008. |
入库方式： OAI收割
来源：海洋研究所
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