Alternate feeding between high- and low- carbohydrate based diets improves the growth digestive capacity, liver glycometabolism for common carp (Cyprinus carpio)
文献类型： 外文期刊
作者： Fan, Ze 1 ; Wu, Di 1 ; Li, Chenhui 1 ; Li, Jinnan 1 ; Wang, Liansheng 1 ; Zheng, Xianhu 1 ; Zhang, Haitao 2 ; Zhou, Meng 3 ;
作者机构： 1.Chinese Acad Fishery Sci, Heilongjiang River Fishery Res Inst, Key Lab Aquat Anim Dis & Immune Technol Heilongji, Harbin 150070, Peoples R China
2.Guangdong Evergreen Feed Ind Co Ltd, Key Lab Aquat Livestock & Poultry Feed Sci & Techn, Minist Agr & Rural Affairs, Zhanjiang 524000, Peoples R China
3.Zhongkai Univ Agr & Engn, Innovat Inst Anim Hlth Breeding, Coll Anim Sci & Technol, Guangzhou 510225, Peoples R China
4.232 Hesong St, Harbin, Heilongjiang, Peoples R China
5.388,Guangxin St, Guangzhou, Guangdong, Peoples R China
关键词： Alternate feeding; High-carbohydrate diets; Low-carbohydrate diets; Growth; Glycometabolism; Common carp
期刊名称：AQUACULTURE REPORTS （ 影响因子：3.7； 五年影响因子：3.8 ）
ISSN： 2352-5134
年卷期： 2024 年 34 卷
页码：
收录情况： SCI
摘要： Use of high-concentrate carbohydrate in fish diets will bring negative influence on the growth and glycometabolism. The current research, with common carp, was designed to investigate the efficiency of alternate feeding between high- and low- carbohydrate based diets in weakening these negative effects. Two control groups were, respectively, fed to the low carbohydrate diets (LC group, 100 g/kg cassava starch) and the high carbohydrate diets (HC group, 400 g/kg cassava starch) for 56 d, meanwhile other groups were subjected to every 1 d, 7 d, 14 d and 28 d alternation between the HC and LC diets, respectively (referred as R1, R7, R14 and R28). All experimental diets were fed to triplicate groups of 30 common carp (initial weight 1.17 +/- 0.03 g). All four alternate groups achieved optimal growth and feed efficiency compared to the HC group. The R14 group possessed significantly higher weight growth rate, protein efficiency ratio, specific growth rate, intestinal index and condition factor, and significantly lower feed conversion ratio compared to the HC group. Fish in that group had higher protein content in whole body, higher expressions of growth hormone and insulin-like growth factor 1 in hepatopancreas and elevated intestinal activities of trypsin, amylase and alkaline phosphatase. Relative expressions of rapamycin, phosphatidylinositol 3-kinase, protein kinase B, Forkhead frame protein 1 A/1B, hexokinase, pyruvate kinase, glucokinase, phosphofructokinase, glucose transporter 2, glucose transporter 4, and sodium glucose cotransporter were also enhanced in the R14 group compared to HC group. Additionally, there was no difference in growth parameters between the LC group and four alternate groups. Alternate feeding between different carbohydrate level diets could enhance the growth, improve the digestive capacity and strengthen the glycometabolism to heighten the utilization ability of fish to high-carbohydrate diets, but this alternate cycle should be within reasonable limits. Briefly, it was concluded that the alternate cycle of 14 d was best.
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