Seroepidemiological survey of Corynebacterium pseudotuberculosis infection in sheep in Japan using enzyme-linked immunosorbent assay and immunodiffusion     

S Chikamatsu  H K Zhao  N Kikuchi  T Hiramune 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1989,51(5):887-891

Sera from 1186 apparently healthy sheep in Hokkaido were examined by enzyme-linked immunosorbent assay (ELISA) and immunodiffusion (ID) for the presence of antibodies against Corynebacterium pseudotuberculosis. ELISA-positives were 466 (39.3%) while ID-positives were 330 (27.8%). Spread of caseous lymphadenitis in sheep in Hokkaido was thus clarified. Although ID was less sensitive than ELISA in detecting the antibodies against C. pseudotuberculosis it did not give any non-specific reaction. From the results and in view of the simplicity of the test procedure, ID was found to be of practical diagnostic value. Distribution by age group of anti-C. pseudotuberculosis antibodies in 758 sheep in a herd detected by both tests showed that the ratio of positives was low in sheep aged less than 1 year, and the ratio increased significantly in those aged 1 year and continued to increase with age until it reached a plateau at the age of 4-5 years.  相似文献   

猪肉毒梭菌毒素中毒的诊断报告     

赵云霞  郭百超  温贺飞 《中国动物检疫》2001,18(10):30-30

１９９９年７月１５日，遵化市某养猪场的６０ｋｇ左右的育肥猪，因饲喂霉变的小干鱼，引起猪只急性发病和死亡。发病猪只７５头，死亡２１头，治愈５４头，治愈率７２％，现将情况报告如下。１ 临床症状 病猪呆立，食欲废绝，精神沉郁，鼻端、眼结膜发绀，口角流涎并有泡沫，呼吸困难，腹壁松驰，有的腹泻，粪便呈黄绿色或灰绿色水样物，站立不稳或颤抖，尾下垂，不走动，叫声嘶哑，反应迟钝。后肢多呈瘫痪状，卧地不起，最后瞳孔散大，窒息死亡。病猪大多体温正常，个别达４０～４１℃。病程一般在１～３ｄ，个别猪发病到死亡仅 ５～６ ｈ…  相似文献   

我国价格体系改革趋势初探     

赵理  刘思峰  林文 《河南农业大学学报》1992,(1)

本文以我国国民经济系统与河南省经济子系统的同构性为基础,利用河南省1987年投入产出表,计算出诺依曼最优生产强度和与之相应的最优价格,进而对照现行价格,提出了我国价格体系改革走向的基本构想,并对其合理性、可行性进行了初步研究。  相似文献   

鸣禽鸟的发声中枢及其神经传导通路的研究     

曾庆华  赵玲 《野生动物》1994,(1):17-18

鸣禽鸟的发声中枢及其神经传导通路的研究曾庆华，赵玲，姜立嘉（东北师范大学生物系）鸣禽鸟之所以能发出婉动听的鸣叫，不仅仅是依赖于外围发声器（鸣管）来完成，而是经过多级水平的相关中枢组成的机能系统密切配合统一调节方能完成的。这个机能系统称它为各级发声中枢...  相似文献   

蜂胶高生物活性黄酮组分的研究   总被引：5，自引：0，他引：5  

赵静  李熠  薛晓锋  蔡阳 《中国蜂业》2005,56(3):9-10

本文探讨了蜂胶总黄酮中最具活性的黄酮类物质的提取分离、官能结构特征与功能关系、可能的功效,进而提出了如何看待蜂胶总黄酮含量高低的问题.  相似文献   

泰山月观峰和索道站冲沟生态治理探讨     

赵广鸾  王斌  孙居文 《山东林业科技》2004,(4):1-2

为保护自然生态，对泰山月观峰和索道站冲沟采取了生态治理措施，取得了良好的效果，恢复了泰山自然景现，达到了保护生态环境的目的。  相似文献   

金乡地膜大蒜种植技术     

赵明诚  郭秋菊 《中国果菜》2006,(3):32-32

金乡县是中国著名的大蒜之乡,所产大蒜个大皮白,具有较高的食用价值和药用价值.现将金乡地膜大蒜种植技术介绍如下:  相似文献   

Sequence of the canine c-yes proto-oncogene     

D. M. Zhao  S. Tateyama  N. Miyoshi  K. Uchida  R. Yamaguchi  T. Yamagami  T. Hayashi 《Research in veterinary science》1995,59(3)

Cloning of the canine yes oncogene was attempted from a c library derived from a healthy canine spleen using a human c-yes-1 probe. The nucleotide and amino acid sequences revealed that the canine yes gene contained an open reading frame consisting of 539 amino acids. Its product had a molecular mass of 60,368 Daltons and showed 95·9 per cent and 90·4 per cent homology with human and chick p61^c-yes, respectively. Moreover, the product had a myristylation signal, src homology region (SH) 3, SH2, and tyrosine kinase domains showing 98·8 per cent and 96·0 per cent homology with those of human beings and chickens, respectively. These findings indicate that the products of the canine yes gene may have non-receptor-type tyrosine kinase activity on the cell membrane, as is the case in human and chick p61^c-yes  相似文献   

西杂牛连续埋植“畜大壮”效果观察   总被引：1，自引：1，他引：0  

赵国琳  李学标 《中国牛业科学》1996,22(1):11-12

本试验对甘肃河西地区西杂１－２岁和周岁以下的犊牛连续用促生长剂“畜大壮”分阶段进行耳根埋植,试验结果表明,４－６月龄犊牛全期１８０天,试验组增重和平均日增重分别为５．５ｋｇ和３０８．３３ｇ,试验组比对照组提高３７．２５ｋｇ和２０６．９４ｇ（Ｐ〈０．０１）,１－２岁牛全期１８０天,试验组平均增重和日增重分别为５６．４３ｋｇ和３１４．４９ｇ,试验缄比对照组分别提高３０．０３ｋｇ和１６６．８２ｇ差异显著  相似文献   

香菇干制微机监控系统研究     

赵武奇  国培光 《吉林农业大学学报》1995,17(3):74-78

本文研究香菇干制过程的计算机控制。在研制了系统硬件之后,根据实验结果,确定了控制对象的广义数学模型,用飞升曲线法求取模型中各参数。用计算机仿真技术对几种常用的算法进行比较,得出了采用大林算法的控制方案。  相似文献