上海海洋大学学报2026，Vol.35Issue(1)：96-104,9.DOI:10.12024/jsou.20250404845
低盐条件下饲料氯化胆碱对凡纳滨对虾生长、抗氧化能力和能量代谢的影响
Effects of dietary choline chloride on growth,health,and metabolism of Pacific white shrimp(Litopenaeus vannamei)under low-salinity
摘要
Abstract
This study aimed to investigate the effects of different levels of dietary choline on the growth,health,and metabolism of Pacific white shrimp(Litopenaeus vannamei)under low-salinity(salinity 3)conditions compared to seawater.An 8-week feeding trial was conducted with diets containing three different levels of choline chloride:2 500,5 000,and 10 000 mg/kg.The results showed that under low-salinity conditions,increasing the dietary choline chloride level from 2 500 mg/kg to 10 000 mg/kg did not significantly promote the growth performance of P.vannamei(P＞0.05).However,the 2 500 and 5 000 mg/kg choline group exhibited significantly higher crude lipid content in the shrimp(P＜0.05).Additionally,the 5 000 mg/kg choline diet significantly reduced glucose levels in both serum and hepatopancreas(P＜0.05),while the 10 000 mg/kg choline group showed a significant increase in hepatopancreatic superoxide dismutase activity,enhancing antioxidant capacity(P＜0.05).Moreover,a high level of choline(10 000 mg/kg)significantly decreased the triglyceride content in the hepatopancreas(P＜0.05).The study concludes that a dietary choline chloride supplementation of 2 500 mg/kg is sufficient to meet the growth requirements of P.vannamei at a salinity of 3.However,higher dosages(≥5 000 mg/kg)play a more significant role in regulating lipid metabolism and enhancing antioxidant capacity.These findings provide a scientific basis for optimizing nutritional strategies for P.vannamei in low-salinity aquaculture.关键词
凡纳滨对虾/低盐条件/氯化胆碱/生长性能/抗氧化能力Key words
Litopenaeus vannamei/low-salinity/choline/growth performance/antioxidant capacity分类
农业科技引用本文复制引用
余秋然,徐畅,韩凤禄,黄茂贤,李二超..低盐条件下饲料氯化胆碱对凡纳滨对虾生长、抗氧化能力和能量代谢的影响[J].上海海洋大学学报,2026,35(1):96-104,9.基金项目
国家重点研发计划(2023YFD2402000) （2023YFD2402000）
