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题名: Comparative study on the effect of dietary corn starch content on growth, feedutilization and body composition of Chinese longsnout catfish (Leiocassislongirostris Gunther) and gibel carp (Carassius auratus gibelio)
作者: Pei Zhi-Hua ; Xie Shou-Qi (sqxie@ihb.ac.cn) ; Lei Wu ; Zhu Xiao-Ming ; Yang Yun-Xia
通讯作者: Pei Zhi-Hua ; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
刊名: Acta Hydrobiologica Sinica
发表日期: 2005
卷: 29, 期:3, 页:239-246
收录类别: 其他
英文摘要: Two 8-week growth trials were conducted under similar experimental conditions to study the difference in the dietary carbohydrate utilization for carnivorous and ominivorous fishes by investigating the effect of dietary corn starch content on growth performance of Chinese longsnout catfish( Leiocassis longirostris Gunther) and gibel carp( Carassius auratus gibelio). Five isonitrogenous and isolipidic diets containing different corn starch content ( 0, 5%, 10%, 15%, 20%) were prepared for Chinese longsnout catfish while five isonitrogenous and isolipidic diets containing different corn starch contents(6% 12% 18% 24%, 30%)for gibel carp. Each diet was fed to triplicate tanks of fish( 12 Chinese longsnout catfish per tank,average initial body weight 8.3g; 20 gibel carp per tank, average body weight 9.0g) to apparent satiation twice a day. The results showed that, for Chinese longsnout catfish, specific growth rate( SGR) of the fish fed diets containing 5% and 10% dietary corn starch were significantly higher than those of the other three groups ( P < 0.05). There were no significant differences in feed conversion efficiency( FCE), feed intake( FI) and protein retention efficiency ( PRE) between groups( P > 0.05). For gibel carp, SGR increased with the increase in dietary corn starch content from 6% to 24% while FI decreased. FCE of fish fed diet containing 24% corn starch was significantly higher than those of other groups ( P < 0.05). Body lipid contents of two fishes increased with the increase in dietary corn starch content. In conclusion, the optimal dietary nitrogen-free extraction level for Chinese longsnout catfish and gibel carp was 7.66% and 15.62% respectively. Gibel carp showed better utilization of corn starch than Chinese longsnout catfish does.
ISSN号: 1000-3207
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/18525
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Pei Zhi-Hua; Xie Shou-Qi (sqxie@ihb.ac.cn) ; Lei Wu; Zhu Xiao-Ming; Yang Yun-Xia.Comparative study on the effect of dietary corn starch content on growth, feedutilization and body composition of Chinese longsnout catfish (Leiocassislongirostris Gunther) and gibel carp (Carassius auratus gibelio),Acta Hydrobiologica Sinica,2005,29(3):239-246
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