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引用本文:刘俊英,罗健,郑绵平.西藏拉果错卤虫──2.营养成分.湖泊科学,1999,11(3):283-288. DOI:10.18307/1999.0314
LIU Jun-ying,LUO Jian,ZHENG Mian-ping.A Study of Artemia in Lagkor Co, Tibet:II.Nutrient. J. Lake Sci.1999,11(3):283-288. DOI:10.18307/1999.0314
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西藏拉果错卤虫──2.营养成分
刘俊英1, 罗健2, 郑绵平2
1.中国地质科学院盐湖资源与环境开放研究实验室, 中国地质科学院地质研究所, 北京 100037;2.中国地质科学院盐湖资源与环境开放研究实验室, 中国地质科学院矿床地质研究所, 北京 100037
摘要:
卤虫包括成体、无节幼体和卤虫卵,蛋白质、氨基酸、脂肪酸等营养成分的含量是评价卤虫质量的主要标准,因为摄食动物饵料效果取决于氨基酸、脂肪酸的组成与含量.西藏拉果错卤虫的营养成分含量较高,1996、1997年盐湖研究中心连续取样测定,其蛋白质含量成体接近20%,无节幼体约 55%,脱壳卵近 50%;粗脂肪成体 3%,无节幼体和脱壳卵均为 15%左右;氨基酸总量成体 18%,无节幼体近 50%,脱壳卵 44%左右在对 1997年样品进行脂肪酸测定后发现,成体不饱和脂肪酸达83%,无节幼体91%以上,脱壳卵超过87%;三种高级不饱和脂肪酸(20∶2,20∶4,20∶5)HUFA含量:成体近8%,幼体和脱壳卵均超过20%;三种必需脂肪酸(18∶2,18∶3,20∶5)EFA含量:成体为16%,幼体21%,脱壳卵26%;无节幼体和脱壳卵的二十碳五烯酸(20∶5)EPA含量均在 18%以上,较我国新疆、青海、内蒙古、 山西、河北地区的盐湖卤虫和天津、海南盐田卤虫的(20:5)EPA含量高,脱壳卵的不饱和脂肪酸总量比已知的国内外其它盐湖卤虫的相应指数高
关键词:  西藏拉果错  卤虫  营养成分分析
DOI:10.18307/1999.0314
分类号:
基金项目:原地质矿产盐湖与环境开放研究实验室资助项目;国家用重点科技项目,“青藏高原盐湖潜力评价”(970411002)
A Study of Artemia in Lagkor Co, Tibet:II.Nutrient
LIU Jun-ying1, LUO Jian2, ZHENG Mian-ping2
1.Open Laboratory of Saline Lake Resourses and Environment & Insatiate of Geology, C. A. G. S., Beijing 100037;2.Open Laboratory of Saline Lake Resources and Environment & Institute of Mineral Deposits. C. A. G. S., Beijing 100037
Abstract:
The content of nutrients which are composed of protein, Amino acid and fatty acid etc of Artemia (including assess the quality of nutrients and brine brine shrimp eggs) is the main criterion to Artemia, because the food value of animal of prey depends on the constituent and content of amino acid and fatty acid.The nutrient of the Artemia in Lagkor Co (Lake) of Tibet is of high value and a succession of samples taken by R & D Centre of Saline Lake and Epi-thermal Deposits (CAGS) were monitored in 1996 and 1997.The protein content of adult brine shrimp is nearly 20%, and that of nauplius and decapsulated brine shrimp eggs about 55% and 50% respectively. The raw fat content of adult brine shrimp is 30% and that of both nauplius and decapsulated brine shrimp eggs is about 15%. The total amount of amino acid of adult brine shrimp is 18% and that of nanplius and decapsulated brine shrimp eggs about 50% and 44% respectively. Among fatty acids the unsaturated fatty acid of adult brine shrimp is up to 83% in samples of 1997 and that of nauplius and decapsulated brine shrimp eggs about 91% and 87% respectively.For three unsaturated fatty acids, the content of HUFA(20 :3, 20 :4, 20 :5) of adult brine shrimp is nearly 8%, and that of both nauplius and decapsulated brine shrimp eggs exceeds 20%.For three necessary fatty acids, the content of EFA (18 :2, 18 :3, 20 :5) of adult brine shrimp is 16% and that of nauplius and decapsulated eggs is 21% and 26% respectively. The contents of EPA (20:5) of both nauplius and decapsulated eggs are above 18%. The content of EPA of Artemia in Lagkor Co is higher than that of Artemia in salt lakes of Xinjiang, Qinghai, Inner Mongonia, Shanxi, Hebei and that of Artemia in salterns of Tianjin and Hainan.The un-satulated fatty acid content of decapsulated brine shrimp egg in Lagkor Co is higher than that in other lakes at home and abroad.
Key words:  Lagkor Co (Tibet)  Artemia  nutrient assayment
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