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- Title
Effects of Dietary Glutamate on the Growth Performance and Antioxidant Capacity of Juvenile Chinese Mitten Crab (Eriocheir sinensis).
- Authors
Zheng, Jiajun; He, Yisong; Shi, Mengyu; Jia, Li; Xu, Yang; Tan, Yue; Qi, Changle; Ye, Jinyun
- Abstract
In order to explore the effects of glutamate on the growth performance, antioxidant capacity and protein metabolism of juvenile Chinese mitten crab, 0%, 1% and 2% glutamate were supplemented to low protein (30%) and normal protein (35%) diets, respectively. There were 5 parallel tanks in each treatment, and the feeding duration was 8 weeks. The results showed that dietary glutamate did not significantly affect the weight gain of Chinese mitten crab. Diets supplemented with 2% glutamate significantly decreased the crude protein of crabs. The T-AOC of crabs fed the 30% protein diets was significantly lower than crabs fed the 35% protein diets. At 30% protein level, the superoxide dismutase (SOD) activity significantly increased with the increase in glutamate content. Dietary glutamate significantly down-regulated the relative expressions of mTOR, PI3K, S6K1 and 4EBP at 35% protein level. In conclusion, dietary glutamate cannot significantly increase the growth of Chinese mitten crab, but it can improve the antioxidant capacity in Chinese mitten crab under low protein conditions.
- Subjects
CHINESE mitten crab; OXIDANT status; GLUTAMIC acid; WEIGHT gain; DIETARY proteins; FISH growth; DIETARY supplements
- Publication
Fishes (MDPI AG), 2024, Vol 9, Issue 8, p306
- ISSN
2410-3888
- Publication type
Article
- DOI
10.3390/fishes9080306