Jie Xiaolei\ Liu Fan\ Xu Fenglin\ Zhou Daihua\ Li Xueyuan
1997, 16(5).
Abstract:This paper discussed the research about the secondary sorption of Zn 2+ on goethite after different amounts of phosphate was sorbed, and Zn 2+ on goethite was fractionated through successive selective extraction with 0.5 molL KCl, 0.5 molL KOH a
1997, 16(5).
Abstract:Simulated soil column experiments were done to study the mechanisms of water reserved by sand interlayer in the profile. The simulated texture profile consisted of 10 cm of sandy interlayer located at 30, 50, 80 and 110 cm depth in a loam profile and 10,
1997, 16(5).
Abstract:The effects of various proteinases on the storage and regeneration of normal protoplast and fusion of inactivated protoplasts between Aspergillus niger V. Tiegh and Aspergillus oryzae Ahlb were studied. The results showed that both proteinase incu
Ni Debin Xiong Yuanzhu Deng Changyan Jiang Siwen
1997, 16(5).
Abstract:In preslaughter treatment, 50 crossbred pigs were tested after 3 different unfed bolding periods: 20 h, 22 h and 24 h, and by two stunning treatments: electrical stunning and notelectrifying. The results showed that changes in the unfed bolding periods al
Gong Yanzhang ) Li Kui ) Peng Zhongzhen ) Shi Shoukun ) Zhao Shuhong )
1997, 16(5).
Abstract:采用正交设计(L9(34))对影响M13mp18转染其宿主大肠杆菌TG1的3个因素:热激温度、时间和DNA量各设3个水平进行优化。直观分析表明:热激温度是主要的,其次是DNA量,最后是热激时间。直观分析确定的较优转染条件为:热激温度44℃、时间120s、DNA量600pg。验证转染试验表明:在该条件下M13mp18对TG1的转染效率较高。
1997, 16(5)-398,T001.
Abstract:在室内自然水温3.8-9.0℃时,大银鱼胚胎孵化需791.48h;仔鱼孵出到卵黄囊基本消失需288h,孵出第6-7d的仔鱼进入 混合营养阶段,仔鱼具较强的直争光 民生。在湖北省移植大银鱼能获得成功。
1997, 16(5).
Abstract:用水浸提枸杞汁正交试验的结果是:溶剂比为1:15,浸出时间为4h,浸温度为70℃。在此条件下,干枸杞浸出率为62.75%。
1997, 16(5).
Abstract:The biology activity and separation of peptides in fermentive ganoderma lucidum were studied. The extracts of water and alcohol were separated by ion exchange resin. The eluates of neutral solution were the most effective against hydroxyl radicals and the
1997, 16(5).
Abstract:Through having analysed the type events, five kinds of inspiration features and nine sorts of mode of inspiration thinking from physics discovery were studied.
1997, 16(5).
Abstract:将柱状嗜纤维菌(Cytophagacolumnaris)和点状气单胞菌(Aeromonaspunctata)分别制成酚灭活菌苗(PKC)和提取其菌体脂多糖(LPS),采用浸泡加注射和口服加浸泡的多种接种途径,对草鱼免疫接种4周后,测定受免鱼血清中凝集抗体效价。无论是浸泡加注射还是口服加浸泡的免疫应答均较对照鱼有明显上升,对活菌攻毒的免疫保护率也达到了50%~88.9%。证明了多种接种途径免疫预防草鱼的细菌性烂鳃和肠炎病的效果是明显的。
Xie Congxin\ Xiong Chuanxi\ Zhou Jie\ Wei Kaijian
1997, 16(5).
Abstract:研究日龄1~20d,全长3.9~21.0mm的乌鳢仔鱼摄食和消化器官的发育特征,仔鱼的食物组成及其选食行为。仔鱼全长5.5mm时出现颌齿和咽齿,7.5mm时出现犁齿和副蝶(骨)齿,9.4mm时出现腭齿;全长8.33mm左右,分化出胃、肠。仔鱼孵出后第3d开口摄食。仔鱼主要摄食浮游动物,主要食物随仔鱼摄食器官和消化器官的发育而变化。摄食初期(4d龄)主要为小型枝角类和轮虫,但仅显示出对小型枝角类正的选择性。之后,胃肠内的食物类群增多,由选食枝角类变为选食桡足类。研究结果表明乌鳢仔鱼对食物选择性的这一变化是仔鱼本身摄食和消化器官的发育状态以及各类食物生物的相对密度等诸因素决定的。
1997, 16(5).
Abstract:This paper describes a system for the timely detection processing and anlysis of video signals of gel electrophoresis by using CCD sensor of a computer. This system can detect the parameters such as the molecule weight and density of the nucleic acid from
Xie Guosheng Yang shuhua Li Zebing Wan Gingmeng Mei Minghua
1997, 16(5).
Abstract:Methods of red and farred light reversible effect, artificial light and temperature control, and gene allelism were employed to explore the fertility alteration of N58s and its transferred photoperiod and thermoperiod sensitive genic male sterile lines, s
Yue Bin Li Hesheng Feng Shengqiou Xiong Qoufang Yu Yunhong
1997, 16(5).
Abstract:以光敏核不育水稻农垦58s为材料,用3种不同波长短波光进行长暗期间断,结果表明:3种光质都有间断效应,其中UV-B大于蓝光和UV-A。暗期间断15d后,倒二叶及幼重避POD,SOD活性及可溶性蛋白质含量都有不同程度的下降。
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