In:
Journal of the World Aquaculture Society, Wiley, Vol. 48, No. 6 ( 2017-12), p. 927-937
Abstract:
The aim of this study was to investigate effects of dietary geniposide ( GP ) on growth performance, flesh quality, and lipid metabolism of grass carp, Ctenopharyngodon idella (95.2 ± 0.6 g), fed seven different diets, including a control diet; Eucommia ulmoides ( EU )–supplemented diet (20 g/kg); and GP ‐supplemented diets containing 100, 200, 400, 600, and 800 mg/kg GP , respectively. Weight gain rate was significantly improved ( P 〈 0.05) and feed conversation ratio was significantly decreased ( P 〈 0.05) by supplementation of EU . Grass carp fed 100–800 mg/kg GP ‐supplemented diets showed significantly higher total collagen and alkaline‐insoluble collagen content in muscle than control ( P 〈 0.05). Contents of total collagen and the alkaline‐insoluble collagen content in the skin of grass carp were significantly increased by dietary 600–800 mg/kg GP and EU ( P 〈 0.05). Fish fed diets containing 600–800 mg/kg GP showed significantly lower muscle crude lipid content than the EU , control, and 100–400 mg/kg GP groups ( P 〈 0.05). Fish fed 400–800 mg/kg GP diets had significantly higher muscle fiber density and lower muscle fiber diameter and serum triglyceride level than the control ( P 〈 0.05). In conclusion, supplementation of GP could improve flesh quality, but not growth of grass carp. The supplemental level of GP for improving flesh quality was estimated to be a 400–600 mg/kg diet.
Type of Medium:
Online Resource
ISSN:
0893-8849
,
1749-7345
DOI:
10.1111/jwas.2017.48.issue-6
Language:
English
Publisher:
Wiley
Publication Date:
2017
detail.hit.zdb_id:
2233509-2
SSG:
21,3
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