’99中国国际饲料工业新技术研讨会将在京举办

由中国饲料工业协会主办的’99中国国际饲料工业新技术研讨会将于10月27日至29日在京召开。     

流感病毒受体特异性间接ELISA检测方法的建立

本研究采用过碘酸钠法对去唾液酸胎球蛋白进行辣根过氧化物酶(HRP)标记,然后通过两种不同类型的唾液酸转移酶对HRP去唾液酸胎球蛋白进行唾液酸标记,使其成为只含有单一受体的载体。利用MAA和SNA以及已知受体特性的两株流感病毒对唾液酸标记的HRP去唾液酸胎球蛋白进行受体结合特异性鉴定。结果表明,该方法可以快速准确的鉴定流感病毒的受体特异性。     

雏鹅疾病多发的原因与防治

随着养殖业的快速发展,很多畜禽养殖业都出现了不同类型的传染病,养鹅业也是如此。疾病不断暴发,新、老病源不断出现,再加上养殖户缺乏专业技术,管理不当,使雏鹅的病发率越来越高,存活率急剧降低。养鹅户损失较大,严重打击了养殖户的饲养积极性,从而严重阻碍了养鹅业的扩大与发展。     

Microstructure and Anatomical Characteristics of Daemonorops margaritae

Daemonorops margaritae is among the most important commercial rattan in South China. Its microstructure and basic anatomical characteristics as well as variation were investigated. Results show that: 1)The variation along the height is small, while the variation along the radial direction is significant; 2) The fibre length, fibre ratio and distribution density of the vascular bundles in the cross section decrease from cortex to core, while the fibre width, vessel element length and width, parenchyma ratio,...     

Ecophysiological Characteristics of Parthenocissus quinquefolia Planch under Different Soil Moisture Conditions

INTRODUCTION People have been working hard to find greening plants which have the characteristics of strong resistance, quick growth and high coverage in barren mountainous areas (Wang Hansheng 2004; Wang Lixian et al. 2005). The role and position of Parthenocissus quinquefolia planch, which is regarded as a vine with strong climbing ability, high coverage and less demand for soil water and nutrition, started to be valued (Zhao Guangde 2002; Zhang Yigong et al. 1999). But most research…     

Research on Chinese Labor Relations in Economic Transformation

The economic transformation in China has caused significant changes to labor relations. It has made the labor relations more complex and labor conflicts apparent and frequent. However the coordination mechanism has not been developed correspondingly. Based on the empirical research upon current domestic and overseas labor relations, it is concluded that the supply of labor force exceeding the demand of it is the fundamental reasons for explaining labor conflicts in the economic transformation in China. It also suggested that the coordination mechanism of labor conflicts has mechanical dysfunction and the structure of harmonic labor relations would take a long time.     

A Rice CaMBP Gene is Induced in Organ-Specific Manner by Both Chilling and Heat-Shock Treatments

A rice CaMBP gene, OsCaMBP (AB363406), was isolated from a chilling treated rice using the fluorescent differential display (FDD) screening method. Its cDNA sequence (2094 bp) contains an opening reading frame (ORF) encoding a 569 amino acids protein (63.2 kD). OsCaMBP has the typical structural features of the CaMBP family, including the conserved IQ calmodulin-binding motif at the N-terminus. Homology analysis revealed 38.25%–47.28% identities of OsCaMBP with other CaMBPs in plants. RT-PCR analysis showed...     

灭幽汤对幽门螺杆菌感染性胃炎 小鼠胃组织IKK(3表达的影响

〔摘要〕目的探讨IKB分子的上游蛋白激酶(IKK日)在幽门螺杆菌相关性胃炎(HAG)病理变化的可能作用 机制及灭幽汤的影响效应〔方法建立HAG模型,将造模成功的小鼠按体质量随机分为模型组、丽珠得乐组,灭 幽汤组〔采用免疫组化法检测胃熟膜组织中核转录因子((NF-KB),IKK(3的蛋白表达情况〔HE染色观察胃组织病 理变化〔结果灭幽汤组能明显减轻胃组织的炎症反应,灭幽汤组胃熟膜炎症程度低于模型组,差异有统计学意义 (P<0.05);能抑制HAG胃组织中NF-KB ,IKK(3蛋白的活性,灭幽汤组NF-KB ,IKK(3表达强度明显低于模型对照 组,差异有统计学意义(P<0.05)〔结论NF-KB和IKK(3在HAG的炎症反应中发挥重要的作用,灭幽汤治疗HAG的 可能作用机制是通过抑制IKK日的激活,阻i1=其活化     

13种海南入侵植物提取物对降香黄檀炭疽病菌的抑制作用

本文研究了13种海南入侵植物不同溶剂提取物对降香黄檀炭疽病菌的生物活性,以筛选出具有较好抑菌活性的植物提取物。结果表明:10种植物对炭疽病菌有一定的抑菌效果,其中效果最好的提取物为垂序商陆乙酸乙酯提取物,EC50为3.413mg/mL,其次是胜红蓟乙酸乙酯提取物以及飞机草乙醇提取物,EC50分别为5.849、21.984mg/mL。3种植物提取物都可以导致炭疽病菌菌丝畸形,高浓度垂序商陆与胜红蓟提取物甚至可以导致细胞壁破裂。垂序商陆提取物的MIC为5.0mg/mL,MBC为10mg/mL;胜红蓟提取物的MIC为7.5mg/mL,而MBC大于12.5mg/mL。