摘要
本研究通过将同一批人工繁育的四指马鲅(Eleutheronema tetradactylum)鱼苗分别饲养于盐度为7.0和12.0的池塘中,比较不同养殖盐度下四指马鲅的氨基酸和脂肪酸组成,探讨2种盐度池塘养殖四指马鲅的肌肉营养组成,为四指马鲅池塘养殖研究提供参考。研究发现2种养殖水体盐度下,四指马鲅的基本营养组成、氨基酸和脂肪酸含量均未出现显著差异(P>0.05)。四指马鲅肌肉中检测出16种氨基酸,谷氨酸(Glu)、天冬氨酸(Asp)、赖氨酸(Lys)和亮氨酸(Leu)含量较高,分别占总氨基酸量的16.2%、11.1%、10.1%和8.7%。必需氨基酸(EAA)、非必需氨基酸(NEAA)和呈味氨基酸的含量(DAA)分别为8.07 g/100 g、11.74 g/100 g和7.80 g/100 g。四指马鲅肌肉中EAA/TAA为41.32%,EAA/NEAA为68.77%。四指马鲅肌肉不饱和脂肪酸(UFA)和多不饱和脂肪酸(PUFA)的平均含量分别为1.90 g/100g和1.13 g/100g,其中DHA和EPA含量分别占脂肪酸总量范围为5.63%和2.86%。结果表明养殖生产过程中的水体盐度相差5时对四指马鲅的营养成分无显著影响,且低盐度池塘养殖的四指马鲅营养价值稍高,表明低盐度池塘养殖四指马鲅具有较强的推广价值。[中国渔业质量与标准,2023,13(2):11-17].
In this study,the same batch of artificially bred Eleutheronema tetradactylum were reared in ponds with a salinity of 7.0 and 12.0 respectively,and the amino acid and fatty acid compositions of E.tetradactylum were compared,to explore the nutritional composition in the muscle of Eleutheronema tetradactylum cultured in two sets of salinity pond,and the results can be used in the culture of E.tetradactylum pond.The same batch of juvenile E.tetradactylum were cultured in the low salinity water(7,12),and the amino acid and fatty acid compositions of E.tetradactylum were analyzed.In this study,we found three phenomena,the first is there were no significant differences in the body composition,amino acid and fatty acid content of E.tetradactylum between the two groups(P>0.05),the second is 16 amino acids were detected in the muscle of E.tetradactylum.The contents of glutamate(Glu),aspartic acid(ASP),lysine(Lys)and leucine(Leu)were rich in the samples,accounting for 16.2%,11.1%,10.1%and 8.7%of the total amino acids,respectively.Moreover,the contents of essential amino acid(EAA),Non-essential amino acids(NEAA)and delicious amino acids(DAA)were 8.07 g/100g,11.74 g/100g and 7.80 g/100g,respectively.The EAA/TAA and EAA/NEAA of the two sets of salinity in the muscle of E.tetradactylum respectively are 0.407 and 0.797,the last is,contents of unsaturated fatty acids(UFA)and polyunsaturated fatty acids(PUFA)in the muscle were 1.90 g/100g and 1.13 g/100g,respectively.DHA and EPA accounted for 5.63%and 2.86%of the total fatty acids,respectively.The results indicate that small difference in salinity will not significantly affect the nutritional compostion in muscle of E.tetradactylum.However,the nutritive value of E.tetradactylum.cultured in brackish pond was slightly higher,indicating that E.tetradactylum cultured in low salinity has more nutritional and promotion value.[Chinese Fishery Quality and Standards,2023,13(2):11-17]
作者
江梁正
王珺
区又君
周文礼
温久福
朱长波
李俊伟
陈朝
JIANG Liangzheng;WANG Jun;OU Youjun;ZHOU Wenli;WEN Jiufu;ZHU Changbo;LI Junwei;CHEN Chao(South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Key Laboratory of South China Sea Fishery Resources Exploitation&Utilization,Ministry of Agriculture and Rural Affairs,Guangdong Provincial Key Laboratory of Fishery Ecology and Environment,Guangzhou 510300,China;College of Fishery Science,Tianjin Agricultural University,Tianjin Key Laboratory of Aqua-Ecology and Aquaculture,Tianjin 300384,China;Yangxi Jinyuan Marine Biological Research Co.,Ltd.,Yangjiang 529800,China)
出处
《中国渔业质量与标准》
2023年第2期11-17,共7页
Chinese Fishery Quality and Standards
基金
广东省科技专项(SDZX2021033)
中国水产科学研究院南海水产研究所中央级公益性科研院所基本科研业务费专项(2022XK03,2021SD16)
2022年广东省乡村振兴战略专项资金种业振兴项目。
关键词
四指马鲅
池塘养殖
氨基酸
脂肪酸
营养组成
Eleutheronema tetradactylum
pond culture
amino acid
fatty acid
nutritional component
