Effects of dietary chlorogenic acid on growth,flesh quality and serum biochemical indices of grass carp (Ctenopharyngodon idella) |
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| Authors: | W.T. Sun X.Q. Li H.B. Xu J.N. Chen X.Y. Xu X.J. Leng |
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| Affiliation: | 1. College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China;2. Key Laboratory of Freshwater Fishery Germplasm Resources, Ministry of Agriculture, Shanghai, China;3. Shanghai Engineering Research Center of Aquaculture, Shanghai, China;4. Shanghai Collaborative Innovation Center for Aquatic Animal Genetics and Breeding, Shanghai University Knowledge Service Platform, Shanghai, China |
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| Abstract: | The study was to investigate effects of dietary chlorogenic acid (CGA) on growth performance, flesh quality and serum biochemical indices of grass carp (95.1 ± 0.3 g) (Ctenopharyngodon idella) fed seven different diets, including control diet, Eucommia ulmoides (EU)‐supplemented diet (20 g kg–1) and CGA‐supplemented diets containing 100, 200, 400, 600 and 800 mg/kg CGA. Contents of collagen and alkaline‐insoluble collagen in muscle and skin were significantly increased by dietary CGA and EU (p < .05). Total essential amino acids (TEAA) and total amino acids (TAA) in muscle of grass carp fed EU diet or 400, 600 and 800 mg/kg CGA diet were significantly higher than those of fish fed control diet and 100 and 200 mg/kg CGA diet (p < .05). Fish fed 200–800 mg/kg CGA showed significantly lower muscle crude lipid content than EU, control and 100 mg/kg CGA groups (p < .05). Fish fed CGA‐supplemented diets (100–800 mg/kg) had significantly higher muscle fibre density and lower muscle fibre diameter than control group (p < .05). In conclusion, supplementation of CGA improved flesh quality of grass carp, and supplemental level of CGA for improving flesh quality and growth was estimated to be 400 mg/kg diet. |
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| Keywords: | amino acid chlorogenic acid collagen grass carp growth muscle morphology |
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