Using data collected from 2006 to 2014,we applied geographic information system(GIS) mapping and spatial clustering analysis to evaluate prevalence of porcine pasteurellosis in all 31 provinces of China's *** prov...
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Using data collected from 2006 to 2014,we applied geographic information system(GIS) mapping and spatial clustering analysis to evaluate prevalence of porcine pasteurellosis in all 31 provinces of China's *** provinces have been affected,but our results show that there is a very high incidence in provinces of the southcentral of China's *** provinces comprise the area and account for 14082 outbreaks or 74.66%of the total 18862 number:Guangxi(4574),Sichuan(3493),Chongqing(2443),Guangdong(1584),Guizou(1041) and Yunnan(947).This study aims to evaluate the relation between meteorological factors and number of cases of porcine pasteurellosis in the southcentral of China's *** meteorological variables and case data of porcine pasteurellosis were provided by *** rank correlation analysis and cross-correlation analysis were used to control for collinearity and lag effects.A zero-inflated Poisson model was used to estimate the probability of an impact of meteorological factors on the epidemiology of porcine *** results of this model indicated that ENSO have a positive effect on the occurrence of the *** there are a positive correlation between mean monthly temperature,relative humidity of the current and previous month and the number of cases of the *** contrast,average wind speed of the current month negatively correlated with the number of newly reported *** findings indicate that there may exist meteorological conditions in the southcentral of China's mainland that increase the risk for the appearance of porcine ***,these meteorological variables may be used to estimate the number of disease' cases in this region.
禽戊型肝炎病毒(Hepatitis E virus,HEV)是鸡肝炎脾大综合症或大肝大脾病的主要病原,引起蛋鸡和肉种鸡的死淘率升高和产蛋率下降,严重影响我国养禽业的健康发展。高效体外培养体系的缺乏以及对该病毒与宿主互作研究的不深入,导致对该病...
详细信息
禽戊型肝炎病毒(Hepatitis E virus,HEV)是鸡肝炎脾大综合症或大肝大脾病的主要病原,引起蛋鸡和肉种鸡的死淘率升高和产蛋率下降,严重影响我国养禽业的健康发展。高效体外培养体系的缺乏以及对该病毒与宿主互作研究的不深入,导致对该病毒的细胞吸附、感染入侵、致病机理的研究几乎空白。为了探索该病毒感染宿主细胞的分子机制,本研究利用GST pull down和SOUTGUN质谱等技术首次筛选并鉴定了禽HEV衣壳蛋白与鸡肝脏组织中互作的宿主因子,为研究禽HEV吸附或侵入宿主细胞的过程及其致病机理奠定了基础。利用构建的禽HEV衣壳蛋白截短区域(aa313-539)的原核表达载体,表达获得了可溶性重组蛋白GST-ap237。将纯化的重组蛋白GST-ap237与鸡肝脏组织裂解产物互作孵育,
伪狂犬病病毒(Pseudorabies virus,PRV)属于疱疹病毒科α-疱疹病毒亚科水痘病毒属。自2011年以来,临床上用经典Bartha-k61弱毒活疫苗免疫猪只频发伪狂犬病强毒感染的病例,经研究证实由PRV变异毒株感染所致,其毒力明显增强。对PRV变异毒株的研究已引起广泛关注。猪圆环病毒2型(Porcine circovirus type 2,
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