我国植物检疫现状及除害处理研究进展

从植物检疫的地位、意义、对象、方法等几个方面对我国目前的植物检疫情况进行概述,同时论述了植物检疫除害处理的各种方法以及出入境时除害处理的原则,最后提出了植物检疫中存在的问题以及应对的措施。     

猪附红细胞体病临床快速诊断与治疗方法的研究

根据流行病学调查、临床表现、剖检变化,结合血液压片相衬观察法,对猪附红细胞体病进行临床快速诊断。并对目前治疗猪附红细胞体病的10多种药物进行治疗效果观察,最终筛选出有效药物3种,临床治愈率可达90%以上。     

豇豆收获前后种子劣变的抗性研究

不同豇豆种质在种子形成过程中对不良自然环境的适应能力和贮藏抗性不同,严重制约着豇豆优质种子生产和推广。了解豇豆品种的田间抗劣变能力,对指导新品种选育、种子生产和品种推广具有十分重要的意义。本研究采用甲醇胁迫法和温箱蚀化法对5 份豇豆种质进行收获前和收获后种子劣变的鉴定。综合各项指标的检测结果发现：‘丰豇十号’种质适应性差,气候对其生长影响较大,不适宜大面积推广。‘大润发’和‘丰豇青优’综合表现最佳,对气候的适应较强,适合大面积推广。     

武川县扬沙特征及其危害分析

扬沙是指大风将地面沙尘吹起,空气相当浑浊,水平能见度在1~10km,这种天气是干旱地区特有的灾害性天气,它与地球温室效应、植被减少、森林锐减等因素有着密切的联系。随着全球气候变暖,干旱化的加剧,生态环境的恶化,沙尘(暴)天气的发生发展及其危害也日趋凸显。文章根据近年来沙尘暴日趋频繁的具体情况,分析了沙尘暴的成因和危害,提出了沙尘暴的治理和预防措施,防治沙尘暴应注意气象条件研究和生态环境治理的配合,调节人类与自然的关系,大力保护和改善生态环境。     

Determinants of fenhexamid effectiveness against grey mould on grapevine: Respective role of spray timing,fungicide resistance and plant defences

Botrytis bunch rot of grapes is mainly controlled by applying fungicides at three crop growth stages: the end of flowering (BBCH 68), bunch closure (BBCH 77) and the beginning of veraison (BBCH 81). The hydroxyanilide derivative fenhexamid is among the most effective fungicides registered to control Botrytis cinerea. Its effectiveness was examined in relation to spray timing, fungicide resistance and defense responses of grapevine. Overall, the earlier fenhexamid was applied, the more effective it was at controlling B. cinerea. Frequencies of B. cinerea strains which were resistant to fungicides were evaluated at harvest. The frequencies of resistant phenotypes were similar among treatments and years with the exception of a class of multidrug resistant strain (MDR 2) whose frequency appeared to increase after fenhexamid applications. If current spray programs including fenhexamid appear to control bunch rot at the current MDR frequency, a propagation of MDR 2 strains might lead to a decline in disease control. Finally, defense responses were studied in grapevine flowers/berries following fenhexamid application. None of the defense processes tested was induced in flowers/berries at stages 68 and 77. Only an increase in chitinase activity was observed in treated-berries at stage 81, suggesting that fenhexamid effectiveness was not related to a stimulation of defense responses.     

一例猫肥厚性心肌病的诊断与治疗

针对合肥市某宠物医院接诊的一例猫肥厚性心肌病病例,阐述了其临床诊断和治疗措施。     

1例藏獒三氮脒中毒的生化检验及治疗

用三氮脒以3.5 mg/kg的剂量对患有附红细胞体病的藏獒进行肌肉注射,隔日用同等剂量的三氮脒肌肉注射,24 h后,藏獒发生以神经症状为主的中毒现象,并表现出食欲废绝,后肢发软,四肢抽搐呈划水状,卧地不起,昏迷,体温正常临床症状。经血清生化检验,藏獒的尿素氮、肌酸激酶等的生化指标明显升高,血糖降低占病例的100%。经过5 d的药物治疗后,中毒藏獒基本恢复健康。     

中草药复方注射剂治疗仔猪腹泻的试验研究

[目的]探讨中草药复方注射剂对仔猪腹泻的治疗效果。[方法]提取中草药有效成分,制备中草药复方注射剂。用不同剂量(0.25、0.50和1.00 ml/kg)的中草药复方注射剂对人工感染的仔猪腹泻进行治疗试验。[结果]经过3 d治疗后,3个剂量组均有明显的治疗效果,治愈率可达60%~95%,极显著高于感染对照组,剂量以0.5 ml/kg为佳。将制备的复方注射剂和临床用的硫酸庆大霉素、诺氟沙星、头孢噻呋混悬、硫酸黄连素和博落回注射剂对人工感染的仔猪腹泻进行疗效对比试验,结果表明复方注射剂的治疗效果最好,治愈率达98.0%,明显优于其他注射剂。[结论]该中草药复方注射剂是临床上治疗仔猪腹泻的有效药物。     

二氧化氯对苯酚废水处理的研究

利用二氧化氯对苯酚废水进行处理,考察二氧化氯的加入量、废水pH值、处理温度等因素对苯酚废水处理效果的影响,并通过试验获得苯酚废水处理的适宜条件.     

浅谈城市生活污水处理发展现状和工艺

阐述了城市污水处理设施的建设与发展现状,并针对城市生活污水特点,介绍了多种目前国内外运用的城市污水处理的方法和工艺技术。