Creatine improves the flesh quality of Pacific white shrimp (Litopenaeus vannamei) reared in freshwater.

Food Chem

Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China. Electronic address:

Published: August 2021

Creatine improves flesh quality on mammalian but studies on crustaceans are scarce. In the present study, diets with six levels of creatine (1.23, 2.58, 5.12, 8.28, 14.12, 24.49 g kg diet) were hand-fed to juvenile Litopenaeus vannamei (IBW: 1.50 ± 0.02 g) reared in freshwater for 46 days. Results showed creatine supplementation did not affect the growth performance (FBW: 17.04 ± 1.28 g) or the content of guanidinoacetic acid in muscle and hepatopancreas whereas significantly increased muscular creatine content. Diet with 8.28 g kg creatine significantly increased muscular hardness and chewiness by decreasing myofiber diameter and increasing myofiber density. Additionally, creatine downregulated the mRNA expression of fast sMyHC1, sMyHC2, sMyHC6a and upregulated slow sMyHC5 and sMyHC15 mRNA expression. Muscular protein, collagen, total amino acid and flavor amino acid contents increased with creatine supplementation. In conclusion, the diet with 8.28 g kg creatine improved the flesh quality of L. vannamei.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.foodchem.2021.129498DOI Listing

Publication Analysis

Top Keywords

flesh quality
12
creatine
9
creatine improves
8
improves flesh
8
litopenaeus vannamei
8
reared freshwater
8
creatine supplementation
8
increased muscular
8
diet 828 g kg
8
828 g kg creatine
8

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!