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《中国畜牧兽医文摘》2016,(3)
<正>赤羽病又名阿卡斑病,是由布尼亚病毒科正布尼亚病毒属辛波病毒群的赤羽病病毒所引起的牛、绵羊和山羊的一种多形性虫媒传染病。以流产、早产、死胎、胎儿畸形、木乃伊、新生胎儿发生关节弯曲积水性无脑综合征(简称AH综合征)为特征的病毒性传染病[1-2]。该病为虫媒性传染病,传播媒介为吸血的蚊、库蠓等[3]。该病首次于1961年在日本群马县赤羽村发现此病,故而得名[4]。该病易发生在热带和温带,澳大利亚、南非、肯尼亚、以色 相似文献
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赤羽病研究进展 总被引:2,自引:0,他引:2
赤羽病(Akabane disease)又名阿卡斑病,是由赤羽病病毒(Akabane disease virus,简称ADV)引起牛羊的一种多型性传染病,以流产、早产、死胎、胎儿畸形、木乃伊胎、新生胎儿发生关节弯曲和积水性无脑综合症(简称AH综合症)为特征。 本病在热带、温带,特别是在近东和南亚地区分布较广。此外,非洲、南美洲和澳大利亚等地区也有发生。该病于1949年首次在日本群马县(现为馆林市)发生。后来,从该地畜舍内采集的金色库蚊和三带喙库蚊体内分离1株病毒,并将之命名为赤羽病病毒。松本等(1980)对本病病原进行研究,确定是由布尼病毒属… 相似文献
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<正> 1981年2月在日本的山形县首次发生伪狂犬病,继之在岩手、茨城两县也有发生。以后,1982年2月至3月又在山形、茨城两县发生,1983年重复在茨城,福岛、千叶3个县又有发生,到目前已发生头数是1,807头。 1902年,奥叶兹基氏用牛、犬、猫的病性鉴定材料进行感染实验,结果 相似文献
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<正>鸡传染性贫血病是由圆环病毒科(Circoviridae)陀螺病毒(Gyrovirus)属的鸡传染性贫血病毒(Chicken infectious anemia virus,CIAV)引起的,临床上以贫血、骨髓黄染、全身淋巴组织萎缩和免疫机能损害为主要特征。1979年Yuasa等〔1〕首次分离到鸡传染性贫血病毒(Gifu-1株)。该病呈世界性分布,广泛存在于日本、英国、瑞典、美国、巴西、 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
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本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
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以国际标准强毒R株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离MG,并收集感染鸡所产蛋分离MG。结果表明,人工感染48小时后上、下呼吸道及肺已被全面感染,96小时气囊已被感染,120小时输卵管已能分离到MG,卵巢始终分离不到MG。人工感染鸡自144小时便能在其所产蛋中分离出MG。药物治疗能在72小时内消除感染,油乳剂苗则需24天后逐渐降低蛋内MG分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内MG,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献
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家兔作为一种实验动物 ,推动了繁殖技术的发展。本试验通过对不同年龄公獭兔的睾丸进行组织学观察、测定 ,研究精子的发生规律 ,为系统地进行繁殖生理工作提供依据。1 材料与方法选 60日龄、75日龄、90日龄 3个年龄公獭兔各5只 ,用外科手术法摘取两侧睾丸 ,放入 Bouin氏液中固定 ,二甲苯透明 ,石蜡包埋 ,切成 5~ 8μm切片 ,H.E.染色。在显微镜下观察 ,并进行定量组织学指标测定及差异性比较。2 结果和讨论2 .1 睾丸定量组织学指标的测定结果 见表 1。表 1 獭兔睾丸定量组织学指标 μm,个 /精细管60日龄 75日龄 90日龄曲细精管… 相似文献
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Fractures of the anconeal process of 5 pigs ranging in age from 4 to 8 months were studied radiographically and histologically. Clinically, animals with a fracture of the anconeal process had a "tight," restricted gait. In pigs at 4.5 months of age, a radiolucent line through the base of the anconeal process was composed of fibrocartilage, fibrous connective tissue, and hyaline cartilage. Subperiosteal proliferation of woven bone was located along the cranial surface of the olecranon, adjacent to the base of the anconeal process. In older animals, the radiolucent line through the anconeal process contained variable amounts of fibrous connective tissue and fibrocartilage. The proliferation of subperiosteal bone at the base of the anconeal process formed a "buttress callus" which retained a radiolucent area between the callus and the proximal surface of the anconeal process. The latter region of radiolucency was continuous with the transversely oriented line that traversed the base of the anconeal process. 相似文献
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REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air. 相似文献