维拉帕米对低温诱发腹水综合征病鸡右心功能的影响

300只15日龄商品肉仔鸡随机分为常温组、低温组和维拉帕米组,以研究L型电压依赖性钙通道拮抗剂维拉帕米对腹水综合征病鸡右心功能的影响。结果,与低温组相比,维拉帕米可显著降低肉鸡腹水综合征的发生率;维拉帕米组肉鸡腹水心脏指数分别在29、36、43和50日龄时显著或极显著降低;右心室收缩压在36和43日龄时极显著降低,右心室舒张压在36和43日龄时也显著或极显著下降;右心室内压最大变化速率在43日龄时极显著升高。结果表明,维拉帕米可显著降低肉鸡腹水和右心肥大的发生,能有效维护右心功能。     

扎鲁司特对低温诱发肺动脉高压肉鸡右心功能的影响

将 6 0只雄性艾维茵商品代肉鸡常规育雏免疫 ,17日龄时随机分为 3组 :常温对照组 (常温组 )、低温模型组 (低温组 )和低温扎鲁司特组 (扎鲁司特组 )。各组于处理后第 14d(31日龄 )和第 2 1d(38日龄 )分别用右心导管法测定右心室压、右心室内压最大变化速率 (±dp/dtmax)和腹水心脏指数 (AHI)。结果 ,31日龄时 ,扎鲁司特组右心室收缩压显著 (P <0 .0 5 )或极显著 (P <0 .0 1)高于低温组和常温组 ,但右心室舒张压无显著变化 ;其±dp/dtmax显著高于低温组 (P <0 .0 5 ) ;其AHI也显著高于常温组和低温组 (P <0 .0 5 )。 38日龄时 ,扎鲁司特组右心室收缩压显著低于低温组 (P <0 .0 5 ) ,但其右心室舒张压显著高于常温组 ,低温组与常温组无显著性差异 ;其±dp/dtmax显著降低 (P <0 .0 5 ) ;此时 ,其AHI仍最高 ,显著高于常温组 ,而低温组与常温组无显著性差异。表明 ,长期应用扎鲁司特可使肺动脉高压肉鸡右心功能降低 ,促使肉鸡低温诱发肺动脉高压的发生     

真武汤对肉鸡腹水综合征的预防效果

选用肉仔鸡256只,随机分成正常对照、腹水征对照、真武汤预防和维生素C E预防4个组,研究了真武汤对肉鸡腹水综合征的预防效果。结果显示,真武汤预防组和正常对照组腹水发病率极显著低于腹水征对照组(P<0.01),真武汤预防组腹水发病率显著低于腹水征对照组(P<0.05);腹水征对照组AHI极显著高于正常对照组(P<0.01),显著高于真武汤预防组(P<0.05);腹水征对照组PCV、RBC和Hb均显著高于真武汤预防组和正常对照组(P<0.05);真武汤预防组血浆、心、肝和肺组织中SOD活性显著高于腹水征对照组(P<0.05),同时真武汤预防组血浆、心、肝和肺组织中的MDA含量显著低于腹水征对照组(P<0.05)。结果表明,饮水中加真武汤口服液,能提高机体抗氧化能力,改善血液组织中的理化参数,提高机体抗冷应激能力,降低AS的发病率。     

低温及L-精氨酸对肉用鸡腹水综合征的影响

用高能日粮饲养400只1日龄AA肉用鸡,14日龄时保优淘弱,随机分为3组,其中100只为常温(20℃)对照组;150只为低温(11℃)试验组;100只为低温(11℃)及日粮添加10 g/kg L-精氨酸试验组.用单因子低温诱发肉用鸡腹水综合征,并于不同时间用红细胞压积、腹水心脏指数和腹水阳性率作为常规指标来判定肉用鸡腹水综合征a结果表明,低温组复制出肉鸡腹水综合征动物模型,其发病率为9.33%,对照组为3.00%,与低温组比较差异极显著(P＜0.01);L-精氨酸组腹水综合征发病率为3.00%,与低温组比较差异极显著(P＜0.01).     

饮水染镉对雄性大鼠精子发生的影响

通过对性成熟及性未成熟雄性大鼠进行慢性饮水染镉,探究了镉对大鼠精子发生的影响,为镉对雄性大鼠生殖毒性作用及其机理的研究奠定理论基础。将30只雄性SD大鼠(性成熟)随机等分成5组,分别饮用镉的质量浓度为0、25、50、100和200mg/L的饮水,试验期为56d;将15只雄性SD大鼠(性未成熟)随机等分成3组,分别饮用镉的质量浓度为0、50和200mg/L的饮水,试验期为105d。试验期结束后观察大鼠的附睾尾重、附睾尾中精子活力、精子活率、精子密度、精子形态等指标的变化情况。结果显示,对于性成熟大鼠,100mg/L镉剂量组与对照组相比,上述指标显著下降(P0.05),200mg/L镉剂量组与100mg/L镉剂量组相比,上述指标极显著下降(P0.01);100mg/L镉剂量组的精子畸形率与对照组相比,呈极显著增加(P0.01)。对于性未成熟大鼠,50mg/L镉剂量组与对照组相比,上述指标显著下降(P0.05),200mg/L镉剂量组与50mg/L镉剂量组相比,上述指标极显著下降(P0.01);50mg/L镉剂量组的精子畸形率与对照组相比,极显著升高(P0.01)。结果表明,慢性饮水染镉对动物精子的发生具有毒性作用,可明显影响雄性动物的生育功能,且存在剂量效应和时间效应关系。     

猪圆环病毒2型对体外培养仔猪淋巴细胞转化能力及其活性的影响

采集5头PCV2和PRRSV血清抗体阴性的断奶仔猪血液,分离外周血淋巴细胞,分对照组、PHA组、LPS组、PCV2组、PCV2+PHA组、PCV2+LPS组进行体外培养,用MTT法检测PCV2作用2d后对仔猪外周血淋巴细胞转化能力的影响;无菌取脾制成单细胞悬液,分单独淋巴细胞(L)、淋巴细胞+PCV2(L+V)、淋巴细胞与巨噬细胞(L+M)和淋巴细胞与巨噬细胞+PCV2(L+M+V)4组进行体外培养.分别在培养后第0、6、12和24 h收获淋巴细胞,用RT-PCR法检测淋巴细胞IL-2R(α)mRNA的表达.结果显示,与对照组、PHA组和LPS组相比,PCV2组、PCV2+PHA组和PCV2+LPS组淋巴细胞的转化能力均极显著降低(P＜0.01);PCV2对单独培养的淋巴细胞IL-2R(α)表达的影响不显著(P＞0.05),而巨噬细胞能协同PCV2促进淋巴细胞IL-2R(α)的表达,尤其在攻毒后第12和第24 h极显著增加(P＜0.01).证实PCV2在攻毒后第2 d能抑制体外培养T、B淋巴细胞的转化能力,且巨噬细胞能协同PCV2促进T淋巴细胞的活化.     

净球散对肉用鸡增重及免疫功能的影响

将90只1日龄AA肉用鸡随机分为3组,每组30只,Ⅰ组为不投药对照组;Ⅱ组按10 g/kg添加氟哌酸,Ⅲ组按10/gkg添加净球散,7日龄用鸡新城疫克隆苗饮水免疫.结果净球散组鸡平均增重、活性E花环、总E花环与氟哌酸组和对照相比差异极显著(P＜0.01),新城疫抗体的效价、胸腺及腔上囊相对值差异显著(P＜0.05),脾相对值差异不显著(P＞0.05).结果表明,净球散对肉用鸡增重效果明显,具有增强机体免疫功能的作用.     

蕨麻多糖对小鼠淋巴细胞增殖和一氧化氮分泌的影响

为探讨蕨麻多糖(Potentilla anserinepolysaccharide,PAP)免疫调节的作用机理,观察了PAP对小鼠脾淋巴细胞体外增殖和分泌一氧化氮的影响。结果显示,50 mg/L PAP配合ConA或LPS(lipopolysaccharide,脂多糖)能使小鼠脾淋巴细胞在体外显著增殖(P<0.05);100、200及400 mg/L PAP配合ConA或LPS可使小鼠脾淋巴细胞在体外极显著增殖(P<0.01);与对照组相比,PAP以不同浓度(50~400 mg/L)处理小鼠脾淋巴细胞后一氧化氮分泌量均显著升高(P<0.05)。试验结果表明,蕨麻多糖能明显促进体外培养的小鼠脾淋巴细胞增殖和分泌一氧化氮,与ConA或LPS有协同作用。     

GC02球虫病疫苗对鸡腔上囊发育的影响

将80只1日龄健康雏鸡随机分为GC02球虫病疫苗组(试验组)和对照组(n=40).试验组鸡于7日龄和14日龄分别口服含8000个孢子化卵囊的GC02球虫病疫苗,对照组鸡口服生理盐水.于21、28、35和42日龄每组随机选取10只鸡,空腹称量体重,颈动、静脉放血致死,立即解剖取腔上囊称重并制作石蜡切片,光学显微镜下观察与拍照,研究了GC02球虫病疫苗对鸡腔上囊发育的影响.结果,试验组鸡腔上囊器官指数低于同日龄对照组,其中28～42日龄鸡的腔上囊器官指数显著或极显著低于对照组(P＜0.05或P＜0.01).与对照组同日龄鸡相比,试验组鸡免疫GC02球虫病疫苗后,各日龄鸡腔上囊均表现出不同程度的病理组织学变化.试验组雏鸡腔上囊组织结构出现轻微损伤,GC02球虫病疫苗刺激了机体的免疫系统,增加了免疫效果.试验结果提示,GC02球虫病疫苗对雏鸡腔上囊发育有一定的抑制作用,对其组织结构有轻微损伤作用.     

抗病毒颗粒对靶动物鸡的安全性试验

为评价抗病毒颗粒对靶动物鸡的安全性,选用8日龄健康伊莎褐蛋公鸡100只,随机分为5组,每组20只,设置抗病毒颗粒推荐剂量的1倍剂量组(4 g/L)、3倍剂量组(12 g/L)、5倍剂量组(20 g/L)和10倍剂量组(40 g/L)。4个用药组持续饮水给药5 d,对照组饮水中不添加任何药物。试验期间每日观察记录鸡的精神、采食、饮水、粪便性状等外观表现,测定增重、血常规、血清生化指标、脏器指数并进行组织病理学观察。结果显示,按抗病毒颗粒推荐剂量的1、3、5和10倍剂量,持续饮水给药5 d,各观察和测定指标与空白对照组相比均无显著性差异。说明抗病毒颗粒对靶动物鸡无毒副作用,临床使用安全。     

Young American China Watchers＇ Views on China

In this paper, the author has made a thorough study over the new generation of American China Watchers. Most of the pages are devoted to a detailed comparison between the old generation and the young generation of American China Watchers regarding to their background, education, and views over China. At the end of the paper, the author also gives some policy suggestions for both the Chinese and U.S. government based on the findings in this study.     

中国需要构建怎样的周边(英文)

正The new central leadership has highlighted the strategic importance of better relations with neighboring countries and the construction of a solid foundation for China’s neighborhood strategy so as to create favorable conditions for Chinese development.1China is strengthening top-level strategy in foreign relations,focusing on global-level relations and staying committed to relations     

中巴关系的发展及其认识误区（英文）

China and Brazil established a strategic partnership in 1993. The bilateral ties have seen rapid development in almost all areas. However, there are eight myths surrounding the China-Brazil relations. These myths are the result of a lack of mutual understanding as well as the misconceptions result misconceptions of the western observers and media. These misunderstandings have of have jeopardized images of the China-Brazil relations and also hindered further development of their bilateral relationship.     

中国的“主场外交”:机遇、挑战与任务（英文）

The successful hosting of the CICA summit has drawn great attention The attention to China's "host diplomacy". Analyzing new features of China's "host to "host diplomacy" during this new period, this paper will look at the opportunities and challenges facing China's "host diplomacy" and discuss the problems that China should address in order to do a better job in this regard and bring its "host diplomatic advantages" into full play.     

亚洲整体性崛起及其效应(英文)

Since the beginning of the 21st century, the overall rise of the Asian geographic plate has been particularly prominently. The overall rise of Asia reflects the improvement of a large number of developing countries in Asia. The long-occupied aggressive status of the United States and Europe is weakening, and the overall rise of Asia appears more highlighted, and its impact upon the world seems more intense.     

CAFIU Convenes the 11~(th) Council Meeting in Beijing

正On the morning of April 2,2014,CAFIU held the 11th Executive Council Meeting in Beijing.Present at the Meeting were Member of the Politburo of the 17th CPC Central Committee and Vice-Chairman of the 11th CPPCC National Committee Mr.Wang Gang,ViceChairman of the 11th NPC Standing Committee and President of CAFIU Mr.Zhou Tienong,ViceChairpersons of the NPC Standing Committee Mme     

Speech by Honorary President Zhou Tienong at the 11~(th) Executive Council Meeting of CAFIU (Excerpt)

正I am very pleased to attend the 11th Executive Council Meeting of CAFIU,and would like to express my hearty congratulations to President Yan Junqi,the new leadership and the newly-elected Executive Council.I also want to express my sincere thanks for choosing me to be the Honorary President of CAFIU!     

Name-list of Members of the Standing Committee of the (11)~th Executive Council (in alphabetical order of the surname's first letter)

正I.Political Parties and Government Sector Lu Yan Director,Beijing Municipal Commission of Commerce Tong Guili Member,Standing Committee of the CPC Municipal Committee of Hangzhou,Zhejiang Province Secretary,CPC Working Committee,Administrative Commission for the Sci-Tech and Innovation Industrial Park in west Hangzhou City     

FES Head of Department for International Development Cooperation Visits China

正At the invitation of CAFIU,Mme.Christiane Kesper,Director of the Department for International Development Cooperation of Friedrich-Ebert-Stiftung of Germany(FES)visited China from Oct.9 to 14.During the stay in Beijing,Mr.Li Jinjun,Vice-Minister of IDCPC and Executive Vice-President of CAFIU met with     

Neighboring NGO Delegation Visiting China

正At the invitation of CAFIU,a 13-member neighboring NGO delegation composed of representatives from media and think tanks from Nepal and the Philippines visited China from October 25 to November 5.During its stay in China,CAFIU Vice-President Ai Ping met with the delegation.CAFIU Secretary-General Ni Jian,Deputy SecretaryGeneral Liu Kaiyang had working talks