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题名: Effects of water temperature and initial weight on growth, digestion and energy budget of yellow catfish Pelteobagrus fulvidraco (Richardson, 1846)
作者: Zhang, L.1, 2; Zhao, Z-G3; Fan, Q-X4
刊名: JOURNAL OF APPLIED ICHTHYOLOGY
发表日期: 2017-12-01
DOI: 10.1111/jai.13465
卷: 33, 期:6, 页:1108-1117
收录类别: SCI
文章类型: Article
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
英文摘要: The effects of water temperature and body weight on feeding, growth, and energy budget were inevitable in the yellow catfish Pelteobagrus fulvidraco (Richardson, 1846), an important fish cultivated in China. This study explores the interaction of water temperature and body weight on both energy utilization strategy and energy conversion efficiency to promote further healthy culture of yellow catfish. Fish with body weights of 6g (Group S), 16g (Group M) and 35g (Group B) were reared in 15 circular glass steel cylinders 80cm in diameterx70cm in height (180L) at water temperatures of 21, 24, 27, 30 and 33 degrees C (3 replicates for each temperature) for 42days to investigate effects of water temperature and body weight on the feeding, growth, digestion and energy budget in yellow catfish. Results showed that the levels of dry matter, protein and energy in the body were significantly affected by water temperature (p<.05). Feeding, growth, feed conversion efficiency, digestion and energy allocation parameters were significantly related to both water temperature and body weight (p<.05). Yellow catfish had higher maximal food consumption (C-max), food intake rate, specific growth rate, food conversion efficiency, appear digestibility coefficient, and growth energy allocation (G) at 24-30 degrees C, and optimal growth at a water temperature of 27 degrees C. Two-factor analysis of variance revealed that there was reciprocation of both water temperature and body weight on the above parameters. At the optimal temperature of 27 degrees C, the value of energy for growth (G) was the highest, and the value of energy for feces (F) produced was the lowest. Yellow catfish with various body weights had energy budget equations of 100 A=63.70 R+36.30G in Group S, 100 A=62.54 R+37.46G in Group M, and 100 A=67.47 R+32.53G in Group B if the equations were described as percentage of the proportion of the assimilation energy. Therefore, the optimal temperature was 27 degrees C according to its feeding, growth and digestion.
关键词[WOS]: FOOD-CONSUMPTION ; RATION ; SIZE ; BASS
语种: 英语
项目资助者: Open Subject of National Key Laboratory of Freshwater Ecology and Biotechnology(2012FB10) ; Basic Research Project of Jiangsu Province-Youth Fund Project(BK20140475 ; China Agriculture Research System(CARS-46) ; National Science and Technology Support Program(2012BAD25B00) ; Y2015-5)
WOS记录号: WOS:000414939700005
ISSN号: 0175-8659
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/38886
Appears in Collections:其他_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei, Peoples R China
2.Chinese Acad Sci, Huaian Res Ctr, Inst Hydrobiol, Huaian, Peoples R China
3.Chinese Acad Fishery Sci, Heilongjiang Fisheries Res Inst, Harbin, Heilongjiang, Peoples R China
4.Huazhong Agr Univ, Coll Fisheries, Wuhan, Hubei, Peoples R China
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