Effects of High-Fat Diet Supplemented with Fermented Mulberry Leaves on Growth Performance, Body Composition and Serum Biochemical Indexes of Hybrid Snakehead

GAO Shengnan, MA Huijia, XU Tao, CHEN Yongjun, LIN Shimei, HUANG Xianzhi

doi:10.3969/j.issn.1006-267x.2017.09.048

2017 , Vol. 29 >Issue 9: 3422 - 3428

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.09.048

Molecular Nutrition

Effects of High-Fat Diet Supplemented with Fermented Mulberry Leaves on Growth Performance, Body Composition and Serum Biochemical Indexes of Hybrid Snakehead

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1. College of Animal Science and Technology, SouthwestUniversity, Chongqing 400716, China;
2. Key Laboratory of Freshwater Fish Reproduction and Development(Ministry of Education), Southwest University, Chongqing 400716, China;
3. Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China

Received date: 2017-03-28

Online published: 2017-09-08

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Abstract

This experiment was conducted to study the effects of high-fat diet supplemented with fermented mulberry leaves on growth performance, body composition and serum biochemical indexes of hybrid snakehead. A total of 360 healthy hybrid snakehead with the average body weight of 10 g were randomly divided into 3 groups with 4 replicates per group and 30 fish per replicate. Fish in the 3 groups were fed the high-fat diet supplemented with 0 (control group), 7.5% and 15.0% fermented mulberry leaves, respectively. The experiment lasted for 8 weeks. The results showed as follows:1) compared with the control group, the specific growth rate (SGR) and protein efficiency rate (PER) of hybrid snakehead in 15.0% fermented mulberry leaves group were significantly decreased (P<0.05), but the feed conversion rate (FCR) was significantly increased (P<0.05); the SGR, PER and FCR of hybrid snakehead in 7.5% fermented mulberry leaves group had no significant difference (P>0.05). There was no significant difference in feeding rate (FR) of hybrid snakehead among all groups (P>0.05). 2)Compared with the control group, the lipid content of whole body, hepatosomatic index, viscerosomatic index and intraperitoneal fat ratio of hybrid snakehead in 7.5% and 15.0% fermented mulberry leaves groups were significantly decreased (P<0.05), and the liver lipid content of hybrid snakehead in 7.5% fermented mulberry leaves group was significantly decreased (P<0.05). There were no significant differences in the contents of whole body crude ash, whole body crude protein and muscle lipid of hybrid snakehead among all groups (P>0.05). 3) Compared with the control group, the glutamic-oxalacetic transaminase and glutamic-pyruvic transaminase activities and total cholesterol and triglyceride contents in serum of hybrid snakehead in 15.0% fermented mulberry leaves group were significantly decreased (P<0.05), and the blood glucose content of hybrid snakehead in 7.5% and 15.0% fermented mulberry leaves groups was significantly decreased (P<0.05). There was no significant difference in serum total protein content of hybrid snakehead among all groups (P>0.05). In conclusion, high-fat diet supplemented with 7.5% fermented mulberry leaves has no effects on growth performance of hybrid snakehead, while supplemented with 15.0% fermented mulberry leaves can decrease the growth of hybrid snakehead, but it is good for liver health, and can improve the body glucolipid metabolism.

Key words： fermented mulberry leaves; high-fat diet; hybrid snakehead; growth; metabolism

Cite this article

GAO Shengnan, MA Huijia, XU Tao, CHEN Yongjun, LIN Shimei, HUANG Xianzhi . Effects of High-Fat Diet Supplemented with Fermented Mulberry Leaves on Growth Performance, Body Composition and Serum Biochemical Indexes of Hybrid Snakehead[J]. Chinese Journal of Animal Nutrition, 2017 , 29(9) : 3422 -3428 . DOI: 10.3969/j.issn.1006-267x.2017.09.048

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