月桂酸酯对真鲷幼鱼脂质蓄积和生理活力的影响(英文)  

Effect of dietary laurate on lipid accumulation and vitality in juvenile Pagrus major

作　　者：吉红[1] Ahmad Daud Om 海野徹也[2] 吉松隆夫 林雅弘 中川平介[2] 浅野雅也 中川敦史 

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100 [2]广岛大学大学院生物圈科学研究科 [3]国立水产综合研究中心养殖研究所 [4]宫崎大学农学部 [5]协和发酵工业株式会社水产研究所

出　　处：《水产学报》2005年第6期804-810,共7页Journal of Fisheries of China

基　　金：协和发酵工业株式会社产品开发项目~~

摘　　要：在配合饲料中加入月桂酸酯(0.5%)饲喂真鲷稚鱼(0.3 g)以评价其对脂质蓄积及生理活力的影响。经过47 d饲养,对真鲷的生长情况、鱼体性状和体成份进行测定和分析,并通过施以麻醉和离水应激以评价其抗逆能力。结果表明,饲料中添加月桂酸酯未影响生长,但提高了肌肉比率,降低了比肝重和腹腔脂肪组织比率。同时脂肪细胞缩小,肝脂及肝脂中中性脂肪比率下降,组织中DHA比率有上升趋势。另外,饲料月桂酸酯增强了真鲷肝功能和离水等抗逆能力,指出月桂酸酯的效果可能与组织中DHA比率上升有关。Based on the fact that medium - chain triglyceddes suppress accumulation of reserved lipids in mammals and some fish species, the effect of dietary laurate on lipid accumulation and vitality was further examined in red sea bream. Ethyl laurate （0.5 % ） supplemented to the diet was fed to zero - year red sea bream （0.3 g） for 47 days. While dietary laurate did not influence growth performance, increasing of muscle ratio and decreasing of liver weight were observed. The dietary laurate led to reducing liver triglycerides, intraperitoneal fat body ratio, adipocyte diameter, and liver lipid. In addition, docosahexaenoic acid （DHA）, functioning as a physiologically active nutrient, tended to increase in the muscle, liver, heart, brain and eyes. Dietary laurate activated resistance against air-dipping and liver function, as seen in the case of dietary DHA fortification. It is concluded that dietary laurate could depress lipid accumulation and improve vitality, while the influence of laurate on the tissue DHA deposition might relate to its efficacy.

关 键 词：月桂酸酯 脂质蓄积 DHA 真鲷 生理活力 

分 类 号：S963.733[农业科学—水产养殖]