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- Title
Effects of dietary geniposidic acid on growth performance, flesh quality and collagen gene expression of grass carp, <italic>Ctenopharyngodon idella</italic>.
- Authors
Sun, W. T.; Xu, X. Y.; Li, X. Q.; Pan, W. Q.; Leng, X. J.
- Abstract
Abstract: This study was conducted to investigate the effects of dietary geniposidic acid (GA) on growth performance, flesh quality and collagen gene expression of grass carp (<italic>Ctenopharyngodon idella</italic>). The fish with an initial body weight of 47.1 ± 0.8 g were fed one of the seven diets, including control diet, <italic>Eucommia ulmoides</italic> (EU)‐supplemented diet (20 g/kg) and GA‐supplemented diets (200, 400, 600, 800 and 1,000 mg/kg GA) for 75 days. The growth performance and muscle proximate composition showed no difference among groups (<italic>p </italic>><italic> </italic>.05). Dietary GA (200–1,000 mg/kg) increased the contents of total collagen and alkaline‐insoluble collagen in skin (<italic>p <</italic> .05), and high supplementation of GA (600–1,000 mg/kg GA) and EU increased the contents of total collagen, alkaline‐insoluble collagen and total amino acids (<italic>p < </italic>.05), but reduced the lipid level in muscle (<italic>p < </italic>.05). In collagen gene expression, EU and 200–1,000 mg/kg GA increased COL1A1 expression in muscle and skin (<italic>p < </italic>.05), but the expression of COL1A2 was increased only by high supplementation of GA (1,000 mg/kg, or 800–1,000 mg/kg) (<italic>p < </italic>.05). In conclusion, dietary GA improved the flesh quality of grass carp, and the supplementation level was estimated to be 600 mg/kg diet.
- Subjects
AQUATIC animals -- Food; GENE expression; CTENOPHARYNGODON idella; BODY weight; COLLAGEN
- Publication
Aquaculture Nutrition, 2018, Vol 24, Issue 3, p1112
- ISSN
1353-5773
- Publication type
Article
- DOI
10.1111/anu.12650