Combined supplementation of hydroxyproline and vitamin C improved the growth and flesh quality of Pacific white shrimp (Litopenaeus vanname) cultured in low salinity water

• DOI: 10.1016/j.aaf.2023.12.007
• Publication Date: 2024-01-01T11:56:52Z
• Authors: Tianyu Huang; Beibei Guo; Jinyu Zheng; Menglu Li; Yunfeng Chen; Xiaoqin Li; Xiangjun Leng
• Keywords: Hydroxyproline; Litopenaeus; Flesh

This study investigated the effects of hydroxyproline (Hyp) and vitamin C (VC) addition to practical diet on growth flesh quality Pacific white shrimp (Litopenaeus vannamei) cultured in low salinity water. The control was formulated contain 200 g/kg fish meal (FM20), then 14 coated (50%) (FM20H), 2 L-ascorbyl-2-phosphate (38%) (FM20C) their combination (FM20HC) were added form four isoproteic (41.6%) isolipidic (6.7%) diets. with initial body weight (1.50 ± 0.05) g fed above diets water (salinity 1‰) for 8 weeks. results showed that combined supplementation Hyp VC increased gain by 13.4%, decreased feed conversion ratio 0.18 (P < 0.05), while individual (FM20H FM20C groups) just numerically promoted > 0.05). In addition, FM20HC group also higher protein lipid retention than FM20 quality, (FM20H) total collagen heat-soluble contents, chewiness free flavor amino acids contents collagen, heat-insoluble acids, lactic acid, malondialdehyde steaming loss FM20C) myofiber density, hardness shear force significantly those summary, fishmeal content improved performance L. vannamei