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Effects of dietary chlorogenic acid on growth, flesh quality and serum biochemical indices of grass carp (Ctenopharyngodon idella)
- Sun, W.T., Li, X.Q., Xu, H.B., Chen, J.N., Xu, X.Y., Leng, X.J.
- Aquaculture nutrition 2017 v.23 no.6 pp. 1254-1263
- Ctenopharyngodon idella, Eucommia ulmoides, European Union, blood serum, chlorogenic acid, collagen, diet, essential amino acids, growth performance, lipid content, meat quality, muscle fibers, muscles
- 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.