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首页> 外文期刊>The Israeli Journal of Aquaculture: Bamidgeh >Effects of lecithin on cholesterol digestibility in the prawn, Artemesia longinaris (Crustacea, Penaeldae)
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Effects of lecithin on cholesterol digestibility in the prawn, Artemesia longinaris (Crustacea, Penaeldae)

机译：卵磷脂对虾长蒿蒿（甲壳纲，对虾）的胆固醇消化率的影响

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摘要

Cholesterol and dietary phospholipids are important to the growth and survival of crustaceans. Soy lecithin enhances cholesterol solubilization while phosphatidylcholine transfers cholesterol from the hepatopancreas to the hemolymph. To study the influence of dietary lecithin on digestibility and transport of cholesterol to the hemolymph in Artemesia longinaris, diets with different levels of supplemental cholesterol (0.5, 1, 1.5, and 2%) and soy lecithin (0, 0.5, 1, and 2%) were fed to prawns for two weeks. The diet containing the lowest level of cholesterol (0.5%) and lecithin (1%) resulted in the lowest apparent digestibility of cholesterol. The diets containing 2% cholesterol and 1 % or 2% lecithin resulted in the highest hemolymph cholesterol contents. There was a linear relationship (r = 0.832; p<0.01) between hemolymph cholesterol and the amount of lecithin in the diet. There were no significant differences between treatments in cholesterol contents in the hepatopancreas. In a second 6-week experiment, diets containing 1.5% cholesterol significantly improved weight gains, regardless of the lecithin content. Survival rates did not differ among treatments. Hence, the efficacy of cholesterol does not seem to be related to dietary inclusion of lecithin.
机译：胆固醇和膳食磷脂对甲壳动物的生长和存活很重要。大豆卵磷脂可增强胆固醇的溶解，而磷脂酰胆碱则将胆固醇从肝胰腺转移到血淋巴中。研究膳食卵磷脂对长蒿蒿，补充胆固醇水平不同（0.5％，1、1.5和2％）和大豆卵磷脂（0、0.5、1和2）的饮食中胆固醇的消化率和胆固醇向血淋巴的运输的影响％）被喂虾，持续两个星期。含有最低水平的胆固醇（0.5％）和卵磷脂（1％）的饮食导致最低的表观胆固醇消化率。含2％胆固醇和1％或2％卵磷脂的饮食导致最高的血淋巴胆固醇含量。饮食中的血淋巴胆固醇和卵磷脂含量之间存在线性关系（r = 0.832; p <0.01）。肝胰腺中胆固醇含量的治疗之间无显着差异。在第二个为期6周的实验中，无论卵磷脂含量如何，含1.5％胆固醇的饮食都能显着改善体重增加。各治疗之间的存活率没有差异。因此，胆固醇的功效似乎与饮食中卵磷脂的含量无关。

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