草坪种子品种快速鉴定技术研究——Ⅰ超薄层等电聚焦（IEF）电泳技术

草坪草种的品种真实性鉴定是评定草种质量的重要指标。依据《国际种子检验规程》，采用等电聚焦电泳技术对适于西北地区的几种冷季型草坪草种进行了品种真实性鉴定研究，确定了两性电解质的PH值范围、酶提取液浓度及最佳取材时间，证明等电聚焦电泳方法是鉴别草坪草品种的有效测定技术。     

草坪种子品种快速鉴定技术研究 II几种冷季型草坪草过氧化物同工酶谱计算机分析

采用等电聚焦电泳技术对适于西北地区的几种冷季型草坪草种进行了品种真实性鉴定研究,并使用国际认证的计算机软件(ImageMaster1D)进行同工酶谱带分析,对检测结果进行了定性定量评定,充分表明了品种间基因多态性,证明此方法是草坪草品种鉴别的有效测定技术。     

草坪种子品种快速鉴定技术研究Ⅱ几种冷季型草坪草过氧化物同工酶谱计算机分析

采用等电聚焦电泳技术对适于西北地区的几种冷季型草坪草种进行了品种真实性鉴定研究，并使用国际认证的计算机软件(ImageMaster 1D)进行同工酶谱带分析，对检测结果进行了定性定量评定，充分表明了品种间基因多态性，证明此方法是草坪草品种鉴别的有效测定技术。     

草坪种子品种快速鉴定技术研究 III几种冷季型草坪草品种间相关性及差异性评定

通过软件分析,对几种冷季型草坪草种品种真实性鉴定的实验结果进行了定性定量评定,充分表明了品种间的相关性及差异性,经过聚类分析测得各品种间遗传关系的远近程度,并证明分析结果与植物分类学及室内种植结果基本一致,确定了此技术作为草坪草种品种鉴定手段的可靠性。     

超薄层等电聚焦电泳技术检验燕麦种子的真实性

利用种子醇溶蛋白超薄层等电聚焦电泳(UTLIEF)技术对青海和河北省燕麦属(Avena spp)16个品种真实性进行了比较分析.结果表明,参试样品的种子醇溶蛋白UTLIEF电泳图谱共分离出34条不同迁移率的谱带;依据蛋白电泳图谱等电点(PI值)为4.8、6.55、6.9、7.7、8.4和8.6等位置谱带的有无以及数目,可鉴别16个参试样品中的13个样品;对同一样品的整粒种子、1/2粒和1/4粒种子,以及人工老化处理获得的同一样品不同发芽率的种子进行超薄层等电聚焦电泳,结果表明破损程度到1/2粒种子和不同生活力种子甚至死种子对电泳鉴定结果基本没有影响.     

水牛梭形住肉孢子虫抗原的薄层等电聚焦行为分析

应用薄层聚丙烯酰胺等电聚焦电泳（ＩＦＥ）对水牛梭形住肉孢子虫（Ｓａｒｃｏｃｙｓｔｉｓｆｕｓｉｆｏｒｍｉｓ）抗原进行了分析。结果表明，经ＳｅｐｈａｄｅｘＧ－１００纯化的包囊抗原在电泳图谱上显示３条相距较近的带，等电点分别为６．３０，６．４５，６．６５；缓殖子纯化抗原仅出现１条带，等电点为６．４０     

多头绦虫抗原特性研究——多头蚴抗原等电聚焦电泳后考马斯亮蓝染色扫描分析

采用等电聚焦电泳（ＩＥＦ）技术,对自然感染绵羊的脑多头蚴的头节可溶性抗原、囊壁可溶性抗原和囊液抗原进行了分析,ＩＥＦ后,考马斯亮蓝Ｒ－２５０染色,扫描。结果表明,头节可溶性抗原共出现了４９个吸收峰,ＰＩ范围４０４～９９１,主吸收峰９个,其ＰＩ值分别为８２３、８０２、７７６、７５２、６８５、６５４、５６８、５０８和４２３,所含蛋白总量占上样蛋白总量的９９５％。囊壁可溶性抗原共出现了６１个吸收峰,其ＰＩ范围为４００～９６６,主吸收峰１０个,其ＰＩ值分别为９５９、８９９、８７９、８５１、８３７、８２３、８０２、７８３、７５２和７２９,所含蛋白总量占上样蛋白总量的９９５％。囊液抗原共出现了５２个吸收峰,其ＰＩ范围为４０１～９８０,主吸收峰３个,其ＰＩ值分别为８２３、５９４和５６８,所含蛋白总量占上样蛋白总量的９９９％。     

草坪种子品种快速鉴定技术研究Ⅲ几种冷季型草坪草品种间相关性及差异性评定

通过软件分析，对几种冷季型草坪草种品种真实性鉴定的实验结果进行了定性定量评定，充分表明了品种间的相关性及差异性，经过聚类分析测得各品种间遗传关系的远近程度，并证明分析结果与植物分类学及室内种植结果基本一致，确定了此技术作为草坪草种品种鉴定手段的可靠性。     

牧草种子种和品种快速鉴定技术的研究

本文通过概述牧草种子种及品种快速鉴定技术的研究,比较分析了各种鉴定方法优势与不足,并对牧草种子种及品种快速鉴定技术的应用前景进行了探讨。     

The indirect fluorescent antibody technique for the rapid identification of streptococcosis of rainbow trout (Salmo gairdneri)

The indirect fluorescent antibody technique has been used successfully for the rapid serological identification of the Streptococcus sp. responsible for streptococcosis of rainbow trout. This technique has been used to identify the Streptococcus sp. in pure cultures and smears made from experimentally infected and diseased fish.     

北方蚕区第五批桑品种鉴定（山西点）试验报告

2011—2013年,山西省蚕业科学研究院对北方蚕区3个单位7个桑品种进行了鉴定。田间调查和实验室鉴定结果表明,7个参鉴桑品种生长势强、产叶量高,品质特性良好,在形态特征和生物学特性方面与对照存在不同程度的差异,而昌盛、9330两个品种的表现比较突出。     

Cyanide poisoning in cattle from Dysphania glomulifera (red crumbweed): using the internet for rapid plant identification and diagnostic advice

A 300-strong Angus-Brahman cattle herd near Springsure, central Queensland, was being fed Acacia shirleyi (lancewood) browse during drought and crossed a 5-hectare, previously burnt area with an almost pure growth of Dysphania glomulifera subspecies glomulifera (red crumbweed) on their way to drinking water. Forty cows died of cyanide poisoning over 2 days before further access to the plant was prevented. A digital image of a plant specimen made on a flat-bed scanner and transmitted by email was used to identify D glomulifera. Specific advice on the plant's poisonous properties and management of the case was then provided by email within 2 hours of an initial telephone call by the field veterinarian to the laboratory some 600 km away. The conventional method using physical transport of a pressed dried plant specimen to confirm the identification took 5 days. D glomulifera was identified in the rumen of one of two cows necropsied. The cyanogenic potential of D glomulifera measured 4 days after collection from the site of cattle deaths was 18,600 mg HCN/kg in dry matter. The lethal dose of D glomulifera for a 420 kg cow was estimated as 150 to 190 g wet weight. The plant also contained 4.8% KNO3 equivalent in dry matter, but nitrate-nitrite poisoning was not involved in the deaths.     

家鸡CHD1基因PCR快速性别鉴定方法的建立及其在早期鸡胚中的应用

本试验以优化PCR条件,建立快速性别鉴定方法为目的,从家鸡雏鸡血样、鸡胚羊水和尿囊液中获得DNA进行性别鉴定.通过对家鸡的两个性别鉴定候选基因CHD1和xho Ⅰ重复片段进行PCR扩增引物筛选和反应体系的优化.结果显示CHD1基因PCR法可稳定、准确地用于鉴定家鸡性别,该体系经改进和优化后,缩短了鉴定时间,提高了鉴定的稳定性和准确性.在此基础上利用12.5日龄鸡胚羊水和尿囊液建立了早期胚胎的性别鉴定体系.该方法为家鸡早期胚胎性别鉴定批量化的快速操作提供了可行的依据,同时也为鸟类性别决定机制的研究奠定了基础.     

The indirect immunofluorescence assay using cardiac tissue from chickens, quails and ducks for identification of influenza A virus during an outbreak of highly pathogenic avian influenza virus (H5N1): a rapid and simple screening tool for limited resource settings

Here we describe the diagnostic utility of the indirect immunofluorescence assay (IFA) during a recent outbreak of highly pathogenic avian influenza (HPAI) subtype H5N1 virus in southern Thailand and demonstrate the usefulness of the cardiac tissue from infected chickens, quail, and ducks for diagnosis. The most reliable sample for IFA diagnosis of influenza A virus was cardiac tissue (83.0%; 44/53) which when divided by species (chicken, quail and duck cardiac tissues) gave respective positivity rates of 88% (22/25), 88.9% (16/18) and 60.0% (6/10). Cardiac tissue also gave the highest IFA intensity for the three species. We believe that the IFA method has wide applicability in developing countries or remote settings where clinically similar avian diseases with high morbidity and mortality such as Newcastle disease and fowl cholera are common and could be rapidly excluded thereby conserving valuable reference laboratory capacity for true HPAI outbreaks.