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Plant Foods for Human Nutrition - Adipose tissue is an endocrine organ and its endocrine function is closely associated with type 2 diabetes mellitus. Valeriana officinalis (Valerian) exerts some...  相似文献   
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The safety, efficacy and cross-protectivity of a live intranasal aerosol haemorrhagic septicaemia vaccine containing Pasteurella multocida serotype B:3,4 were tested in young cattle and buffaloes in Myanmar, where more than 1.5 million animals had been inoculated with this vaccine between 1989 and 1999. A recommended dose of 2 x 10(7) viable organisms was used for the efficacy test. The administration of 100 times the recommended dose to 50 cattle and 39 buffalo calves was innocuous. Seven months after they were vaccinated, three of three buffaloes were protected and 12 months after they were vaccinated, three of four buffaloes were protected against a subcutaneous challenge with serotype B:2 which killed three of three unvaccinated buffaloes. Twelve months after they were vaccinated, eight of eight cattle survived a serotype B:2 challenge, which killed four of four unvaccinated controls. The vaccinated cattle had developed serum antibodies detectable by the passive mouse protection test. Indirect haemagglutination tests on sera taken from cattle 10 days and five weeks after they were vaccinated showed high titres of antibodies. The serum of vaccinated cattle cross-protected passively immunised mice against infection with P. multocida serotypes E:2, F:3,4 and A:3,4.  相似文献   
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为制定有效的草地贪夜蛾防控措施,分别自缅甸、柬埔寨和我国云南省采集4、2和8个种群共542个草地贪夜蛾样品,基于mtCOI基因序列分析这14个种群的遗传多样性指数、遗传分化系数及基因流。结果表明,缅甸草地贪夜蛾种群的单倍型多样性指数和平均核苷酸差异数分别介于0.273~0.396和4.643~6.727之间,高于我国云南省的草地贪夜蛾种群,分别介于0.047~0.214和0.791~3.636之间;除ZT种群、LS种群和TO种群外,其它11个种群的Fu’s F均为显著正值,表明缅甸、柬埔寨和我国云南省的草地贪夜蛾种群未经历种群扩张事件;在14个种群中,LS种群与其它种群分化较明显,TK种群、MY种群、CP种群、MS种群和KY种群有效迁入个数和有效迁出个数之和较高,分别为699.41、682.50、855.76、684.56和701.31,推测这5个种群在草地贪夜蛾基因交流中起着类似"中转站"的作用。  相似文献   
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2019年缅甸草地贪夜蛾发生情况考察报告   总被引:4,自引:0,他引:4  
缅甸是我国草地贪夜蛾的重要境外虫源区, 为了掌握草地贪夜蛾在缅甸的发生与防控情况, 2019年5月19-25日, 云南省农业科学院与缅甸农业研究司专家联合对缅甸南部、中部、中北部和东部草地贪夜蛾开展了实地调查。结果表明: 缅甸全境均有草地贪夜蛾发生, 为害严重, 田间多种虫态并存。其中, 南部玉米大部分已经收获, 虫株率62.50%~97.50%; 中部区域种植少量的商品甜玉米, 防治到位, 虫株率6.00%~7.50%; 中北部曼德勒敏建玉米种植面积最大, 达8 000 hm2, 80%的地块已成熟收获, 处于吐丝-乳熟期的田块虫株率达100%, 受害严重; 东部掸邦虫株率59%, 虫口密度2.60头/株。玉米是缅甸第二大种植作物, 全年玉米种植面积达47万~52万hm2, 其中与我国云南接壤的东部掸邦是主要种植区。到5月前因无有效降雨, 全境玉米尚未大面积种植, 仅有零星种植, 随着雨季的来临, 玉米种植面积将全面增加, 草地贪夜蛾种群数量也将随之增加。因此, 加强与缅甸相关部门合作, 密切掌握缅甸玉米种植及草地贪夜蛾的发生与防控情况, 对我国草地贪夜蛾的监测预警及防控有重要的参考价值。  相似文献   
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