汪清县西大坡水利枢纽工程取用水合理性分析

水利枢纽工程取用水方案合理性分析的核心内容是对建设项目取用水水平和用水过程,节水潜力,给出是否合理的结论,并为业主提供切实可行的节水措施,确保项目用水安全。本文介绍了汪清县西大坡水利枢纽工程的区域概况、水资源及开发利用情况等,着重对该区域建设项目取用水合理性进行了分析。     

Clinical Therapeutic Effect of Praziquantel Injection on Buffalo Schistosomiasis

To observe the clinical therapeutic effect of 30% praziquantel injection on buffalo schistosomiasis, the sick buffalos naturally infected with Schistosoma japonicum were selected by miracidium hatching method. In experimental clinical trials, sick buffalos were randomly divided into five groups, high-dose (20 mg/kg), middle-dose (10 mg/kg) and low-dose (5 mg/kg) praziquantel injection groups, praziquantel tablet group (30 mg/kg) and positive control group. After the treatment of 30 d, the negative conversion rate of miracidium were 100.0%, 100.0%, 77.8% and 85.7%, respectively, in praziquantel injection groups with the high, middle and low dose and oral medication group. In expanded clinical trials, the sick buffalos were randomly divided into two groups, praziquantel injection group (10 mg/kg, i.m.) and praziquantel tablet group (30 mg/kg). The results showed that, the negative conversion rate of miracidium were all 100% in the former 52 patients and the latter 6 patients after 30 d. The research confirmed that praziquantel injection was significantly effective in the treatment of buffalo schistosomiasis and convenient for administration. It was concluded that 30% praziquantel injection could replace the traditional oral praziquantel tablet for the treatment of buffalo schistosomiasis, and the recommended dose was 10 mg/kg.     

哈巴雪山自然保护区种子植物区系特征研究

以2008年"云南哈巴雪山自然保护区综合科学考察项目"的野外调查资料为基础,按照吴征镒对中国种子植物属的分布型的划分标准,对哈巴雪山自然保护区种子植物区系科、属、种进行统计分析。结果表明,哈巴雪山自然保护区具有种子植物120科555属1 633种,包括中国种子植物属的15个分布类型和20个变型。除世界分布科外,泛热带分布型和北温带分布型科是保护区植物的重要组成部分。其中,热带分布158属,温带分布322属,中国特有19属,分别占非世界广布属的31.66%、64.53%和3.81%。哈巴雪山保护区植物区系含温带区系性质,具有丰富的物种多样性,反映了哈巴雪山种子植物区系来源的广泛性与复杂性。     

上海耐冷转基因材料与黑河大豆骨干亲本杂交组合配制技术

为了能够有效利用耐冷材料,2010年黑龙江农业科学院黑河分院引进上海耐冷大豆材料SZ1,通过本地种植鉴定,该材料在黑河地区无法正常成熟,生育期长,采用温室育苗与错期播种技术,经过2a时间摸索出一套外引晚熟大豆材料与黑河骨干亲本杂交组合配制技术。     

两株鸭源H1N3亚型流感病毒的分离鉴定和遗传进化分析

从2008年10月至2010年7月,每月定期在华东地区扬州活禽市场采集健康家鸭泄殖腔拭子,并从中分离鉴定了14株H1亚型禽流感病毒。对其中的2株病毒进行全基因测序和遗传演化分析,发现2株病毒均属于H1N3低致病性禽流感病毒。各基因遗传进化分析均与类禽猪流感的分离株的亲缘关系相对较近;除血凝素(haemagglutini,HA)基因外,其它所有的基因均发生了不同程度基因重组。其中H5N1病毒参与了多聚酶蛋白PB1与PB2基因的重组,H9N2病毒参与了PA基因的重组。     

高职学校畜牧兽医专业实验室管理

为了加强高职院校实验室管理,通过制订和完善实验室管理制度,如实验室技术人员管理、仪器设备的采购和实验用药品的管理、对学生的管理、创新实验项目的实验室管理、实验室网络平台和实验室对外技术服务的管理、病原微生物的保存与处理、病死动物的无害化处理、实验室应急事件处理等措施,实现统筹规划和资源共享,培养学生的实验兴趣,使学生初步掌握畜牧兽医专业实验研究的基本方法和实验操作的基本技能,促进实验室的科学化、规范化、制度化的管理,以达到全面提升学生实践操作技能的目的。     

“希姆劳特”葡萄在天津地区的引种表现及栽培技术

经过连续6年的引种栽培区试发现,"希姆劳特"葡萄在天津地区具有极早熟、花芽分化好、品质优良、抗病性强等优良特性,可在天津地区适度发展该葡萄品种。现总结"希姆劳特"葡萄品种的引种区试情况及栽培技术要点。     

Effect of Different Crossbred Combinations on Fatting Performance in Beef Cattle

This study was aimed to determine the effects of different crossbred combinations on fatting performance in beef cattle. Using single factor randomized block design, 30 bulls (health, similar weight and age) were chosen, Simmental cattle×Kerqin beef cattle (group A), Charolais cattle×Kerqin crossbred beef cattle (group B) and Kerqin beef cattle (group C) were divided into three groups with 10 bulls per group. After 95 d, the body weight, slaughter performance, meat quality and the economic benefits of fattening were measured. The results showed that there were no significant influence on dry matter intake among trials (P>0.05). The F/G, ethanolic extract (EE) of muscle in crossbred groups (groups A and B) were significant lower than group C (P<0.05). The weight of carcass, weight of meat, rate of carcass, and the weight of shank, plate, chine and rump in crossbred groups were significant higher than group C (P<0.05). There were no significant difference in content of amino acids among groups (P>0.05),and it had difference in the content of palmitoleic acid (PAA),stearic acid(SA) and linoleic acid (LA). In this trial, it had better fattening performance and the economic benefits in crossbred cattle groups than Kerqin beef group cattle, but the ethanolic extract and unsaturated fatty acids of muscle in Kerqin beef cattle were higher than the crossbred groups, and it had better fattening performance by crossbred.     

东风农场橡胶树施肥GIS数据模型的建立和数据处理

基于GIS技术,建立了东风农场橡胶树施肥空间数据模型和属性数据模型,收集并整理了橡胶树施肥GIS数据,为数据库的建立和橡胶树施肥信息管理系统的开发应用奠定基础。     

犬瘟热患犬中性粒细胞cAMP PDE活性变化及中药作用研究

研究犬瘟热患犬中性粒细胞(PMN)中环磷酸腺苷-磷酸二酯酶（cAMP-PDE）的活性变化及中药对其活性的体外调节作用，为抗炎药研究和病毒性炎症的中药治疗积累资料。提取犬瘟热患犬（n=9）和正常犬(n=6)的中性粒细胞制备cAMP-PDE样品，通过高效液相色谱(HPLC)法测定其活性及中药对其活性的影响。结果显示，犬瘟热患犬组中性粒细〖JP2〗胞cAMP-PDE活性（18.55%±2.66%）显著（P<0.05）高于正常组（11.54%±5.16%）。解表药等5类114味中药中芦根（77.27%）、胡黄连（70.41%）、女贞子（65.50%）、香薷（65.16%）、贝母（61.43%）、黄芩（60.67%）、淫羊藿（60.34%）、黄芪（59.13%）、青蒿（56.93%）、秦皮（55.55%）、辛夷（55.03%）、甘草（54.67%）、牛蒡子（53.40%）、麻黄（53.32%）14味对cAMP-PDE活性具有明显抑制作用。结果表明，中性粒细胞cAMP-PDE活性在犬瘟热患犬炎症过程中具有重要作用，对cAMP-PDE活性有明显抑制作用的中药对其炎症可能具有疗效，同时，中药抑制中性粒细胞中cAMP-PDE活性可能是其抗炎作用机理之一。