A rapid uptake of avermectin b1a was observed and steady - state levels were reached within 14 to 18 days . depuration of avermectin bia residues in muscle of sturgeon was relatively rapid with more than 50 % clearance occurring after about 4 - 6 days in control water Avmb _ ( 1a )在鲟鱼体内的残留消除比较迅速，大约经过4 - 6天的消除期，体内残留量大约消除50 ；经过14 - 18天的消除期，体内残留量消除超过95 。
At the second course , with the gigantic sturgeon at the sight of which ilya andreitch flushed with shamefaced delight , the footman began popping corks and pouring out champagne . after the fish , which made a certain sensation , count ilya andreitch exchanged glances with the other stewards 在端出第二道菜大鲟鱼拼盘时，伊利亚安德烈伊奇看见鲟鱼，欢喜而又腼腆得面红耳赤，仆人开始砰砰地打开瓶塞，在斟香槟酒了。
Finger 4 : in the rearing pool at the yangtze river fisheries research institute of the chinese academy of fishery sciences , the fries of wild chinese sturgeon mother : the fries , which are successful artificially incubated , are eating breakfast with tasty relish - - aquatic earthworm , which look like red filament 图四：长江水产研究所的幼鲟饲养池里，野生中华鲟妈妈的孩子们：一尾尾人工孵化成功的小中华鲟们正津津有味地吃着早餐：红红的如同细线的水蚯蚓。
Compounds with bcf values < 100 are considered to be of little environmental concern and not expected to bioconcentrate into tissues . in this in vivo test , the low uptake of avermectin b1a and its low persistence in sturgeon muscle demonstrate that it will neither bioaccumulate in individual organisms nor biomagnify in the food chain 在试验中，鲟鱼对水中的avmb _ ( 1a )摄取率较低， avmb _ ( 1a )在鲟鱼体内消除迅速，以及avmb _ ( 1a )较低的bcf值，表明不易在水生生物食物链中被生物浓缩，不易在水生生物体内富集，对环境和人类的健康影响较小。
It is effective in controlling different phytophagous pests of field crop , ornamentals , vegetables , fruits and in controlling fire ants . to assess the potential impact of avermectins on the environment , the bioaccumulation potential of avermectin b1a , its major component , in sturgeon ( a . schrenckif ) was examined 本文对阿维菌素( avermectin ， avm )环境毒理的一部分内容进行试验研究，主体试验部分为研究进入到淡水中的阿维菌素在鲟鱼体内的生物富集和生物消除规律。
By the end of 1995 china had set up 175 zoological gardens and zoological exhibition sites in public parks , 227 artificial breeding centers for wild animals , more than 60 large botanical gardens and 255 wild plant gene and cell banks to ensure the continuation of rare and endangered species of plants and animals , including the giant panda , chinese alligator , chinese sturgeon , white - flag dolphin , manchurian tiger , crested ibis , cathay silver fir , dovetree , cycas revoluta and camellia chrysantha tuyama 到1995年底，中国共建动物园和公园动物展区175个、各种野生动物繁殖中心（场） 227个，建立大型植物园60多个、野生植物引种保存基地255个，使大熊猫、扬子鳄、中华鲟、白暨豚、东北虎、朱? 、银杉、珙桐、苏铁、金花茶等珍稀濒危动植物得到保护。
