scholarly journals Dietary Vitamin B6 Requirement of Juvenile Grass Carp (Ctenopharyngodon idella)

2017 ◽  
Author(s):  
L. Yu ◽  
W. Liu ◽  
F. Wu ◽  
J. Tian ◽  
H. Wen ◽  
...  
Keyword(s):  
Grass Carp ◽  
Vitamin B6 ◽  
Ctenopharyngodon Idella ◽  
Dietary Vitamin ◽  
Grass Carp Ctenopharyngodon Idella

scholarly journals Dietary Vitamin A Improved the Flesh Quality of Grass Carp (Ctenopharyngodon idella) in Relation to the Enhanced Antioxidant Capacity through Nrf2/Keap 1a Signaling Pathway

Antioxidants ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 148
Author(s):  
Pei Wu ◽  
Li Zhang ◽  
Weidan Jiang ◽  
Yang Liu ◽  
Jun Jiang ◽  
...  
Keyword(s):  
Vitamin A ◽  
Grass Carp ◽  
Fish Muscle ◽  
Protein Carbonyl ◽  
Ctenopharyngodon Idella ◽  
Dietary Vitamin ◽  
Related Factor ◽  
Flesh Quality ◽  
Grass Carp Ctenopharyngodon Idella ◽  
Indispensable Amino Acids

Fish is an important animal-source food for humans. However, the oxidative stress-induced by intensive aquaculture usually causes deterioration of fish meat quality. The nutritional way has been considered to be a useful method for improving fish flesh quality. This study using the same growth experiment as our previous study was conducted to investigate whether vitamin A could improve flesh quality by enhancing antioxidative ability via Nrf2/Keap1 signaling in fish muscle. Six diets with different levels of vitamin A were fed to grass carp (Ctenopharyngodon idella) (262.02 ± 0.45 g) for 10 weeks. Dietary vitamin A significantly improved flesh sensory appeal and nutritional value, as evident by higher pH24h value, water-holding capacity, shear force, contents of protein, lipid, four indispensable amino acids (lysine, methionine, threonine, and arginine) and total polyunsaturated fatty acid in the muscle. Furthermore, dietary vitamin A reduced oxidative damage, as evident by decreased levels of muscle reactive oxygen species, malondialdehyde, and protein carbonyl, enhanced activities of antioxidative enzyme (catalase, copper/zinc superoxide dismutase (CuZnSOD), MnSOD, glutathione peroxidase, and glutathione reductase), as well as increased content of glutathione, which was probably in relation to the activation of nuclear factor erythroid 2-related factor 2 (Nrf2) signaling. These findings demonstrated that dietary vitamin A improved flesh quality probably by enhancing antioxidant ability through Nrf2/Keap 1a signaling in fish.

Sign in / Sign up

Export Citation Format

Share Document