共查询到18条相似文献,搜索用时 140 毫秒
1.
日前,山东信得动物疫苗有限公司禽流感灭活疫苗生产车间通过由农业部专家组成的GMP验收小组的验收。该项目不仅填补了潍坊动物疫苗研发生产空白,而且是国内首个以细胞悬浮培养技术生产禽流感疫苗通过GMP验收的项目。近年来,潍坊大力推广畜牧科技创新。针对此前国内禽流感疫苗生产企业鸡胚工艺生产效率低下等不利因素,积极组织企业和科研机构研 相似文献
2.
细胞反应器悬浮培养和微载体培养技术在我国得到了广泛的推广和应用,特别是在动物疫苗生产领域取得了长足的发展.本文对细胞反应器悬浮培养和微载体培养技术在动物疫苗生产中的应用进行了分析. 相似文献
3.
4.
5.
6.
陶海静 《上海畜牧兽医通讯》2014,(2):98-99
<正>《动物细胞培养技术》课程的实验教学目的在于使学生熟悉和掌握有关动物细胞培养的基本技术,并为其今后的就业创造条件。本文结合多年的教学实践经验提出了几点教学建议。1让学生明确动物细胞培养技术是病毒疫苗生产过程中最基本的应用技术动物细胞培养技术是指将动物细胞在体外条件下进行培养的技术,动物细胞培养技术可分为原代培养技术和传代培养技术。不管是原代培养技术或者是传代培养技术,在动物疫苗的生产中都应用的十分广泛〔1〕。授课时,一些具体的实例将有助于学生的理解,比如鸡法氏囊细胞疫苗是使用原代 相似文献
7.
8.
9.
《畜牧兽医科技信息》2021,(8)
近年来禽流感、口蹄疫、高致病性猪蓝耳病猪瘟、鸡瘟等流行性传染病的肆虐,使政府对动物疫苗的研发技术给予了高度关注。出台了一系列法规,制度和规范,使动物疫苗的研发和生产开始由杂乱无序向高效规范转变,动物疫苗的生产技术快速提高,动物疫苗生产呈现标准化规范化和产业化特点。畜牧养殖业的规模化发展,对疫苗需求的在增加,促进了疫苗研发和疫苗生产工艺的不断创新及疫苗安全性和有效性的提高。 相似文献
10.
PK15细胞是一种被广泛应用于兽用疫苗生产的细胞,然而现今生物制品行业快速发展,传统贴壁培养PK15细胞已经不能满足生产需要.目前通过全悬浮培养技术来培养细胞、病毒已经是发展趋势,但是由于生产用细胞多数为贴壁细胞,难以实现悬浮培养,所以,目前该项技术在疫苗生产上还未广泛应用,技术也还未成熟.故本文探讨PK15细胞在无血... 相似文献
11.
12.
AMOSPCR是近年来在布鲁氏菌上尝试使用的一种布鲁氏菌检测方法,可作为布鲁氏菌诊断及菌种类型鉴定的PCR方法,可区分牛种布鲁氏菌1、2、4型,羊种布鲁氏菌、猪种布鲁氏菌、绵羊附睾种布鲁氏菌。本试验用来自国内的疫苗S2,M5及国际上常用的布鲁氏菌疫苗S19,104M试验AMOSPCR的效果,同时对AMOSPCR扩增条带进行测序。结果表明,除国内布鲁氏菌S19检测结果与国外菌株不同外,其余的几种疫苗株都得到典型的特征性条带。同时测序结果也表明各种属条带无交叉反应,为今后国内诊断布鲁氏菌病诊断方法研究指出一个方向。 相似文献
13.
14.
Porcine epidemic diarrhea (PED) is one of the important diseases that endanger the healthy development of the pig industry.It has acute and highly infectious characteristics,causing severe economic losses to the pig industry.Porcine epidemic diarrhea virus (PEDV) infection could destroy the animal's digestive system,cause the appetite of sick pigs to decline,vomit,and severe diarrhea.And the piglets cured by drugs will also have a serious impact on production due to factors such as poor growth and development,which will bring huge problems to the farmers.The outbreak of PEDV highly pathogenic mutant strains in China in 2010 led to a significant increase in the incidence and mortality of PED,which severely affected pig production in China.The outbreak of PED has drawn close attention from the pig industry.Scholars in related research fields have conducted more in-depth research on the pathogenic mechanism of PEDV and the new PED vaccine.Five new types of PED vaccines,including subunit vaccine,virus live vector vaccine,bacterial live vector vaccine,transgenic plant vaccine and nucleic acid vaccine,have been developed successively,and new breakthroughs and progress have been made.Compared with the traditional PED inactivated vaccine and PED attenuated vaccine,the new PED genetically engineered vaccine has the advantages of good safety,simple preparation,and good immune effect.This article focuses on the pathogenesis of PEDV and the research progress of five new PED vaccines,so as to deepen our understanding of new PEDV and PED vaccines,in order to provide references for prevention and control measures of PEDV infection. 相似文献
15.
猪流行性腹泻(porcine epidemic diarrhea,PED)是危害养猪业健康发展的重要疾病之一,具有急性、高度传染性的特征,给养猪业造成了严重的经济损失。猪流行性腹泻病毒(porcine epidemic diarrhea virus,PEDV)感染会破坏动物机体的消化系统,造成患病猪食欲下降、呕吐以及严重腹泻等,且药物治愈后的仔猪也会因为生长发育不良等因素严重影响生产,给养殖户带来巨大的困扰。2010年PEDV高致病变异毒株在中国暴发流行,导致PED的发病率和死亡率大幅升高,严重影响中国养猪生产。此次PED的暴发流行引起了养猪行业的密切关注,相关研究领域的学者对PEDV致病机制和PED新型疫苗进行了更加深入的研究,亚单位疫苗、病毒活载体疫苗、细菌活载体疫苗、转基因植物疫苗和核酸疫苗5种PED新型疫苗相继被开发,并取得全新的突破和进展。与传统的PED灭活苗和PED弱毒疫苗相比,PED新型基因工程疫苗具有安全性好、制备简单、免疫效果好等优点。文章着重对PEDV发病机理和5种PED新型疫苗的研究进展展开综述,从而加深对PEDV和PED新型疫苗的了解,以期为PEDV感染的预防和控制措施提供参考。 相似文献
16.
17.
Peixoto CC Marcelino I Vachiéry N Bensaid A Martinez D Carrondo MJ Alves PM 《Veterinary microbiology》2005,107(3-4):273-278
Ehrlichia ruminantium (ER) is the causative agent of Heartwater, one of the most common tick-borne diseases affecting ruminants in African countries and West Indies. Although ER can be used as an inactivated vaccine for wild and domestic animals, there are currently no easy and reliable methods for the quantification of this obligate intracellular bacterium. This report describes the development of a SYBR Green I based real time PCR protocol for the quantification of ER for vaccine production purposes. The method was validated for four ER strains. The external-standard-based PCR protocol developed has a large dynamic quantitative range allowing accurate ER measurement in samples containing from 10(2) to 10(8) gene copies; the method is also reproducible and precise, with intra- and inter-assay coefficients below 5%. The detection limits were validated for samples collected from bovine aortic endothelial cell culture bulks, which are commonly used to produce the ER vaccine. In contrast to the methods based upon protein content, no interference from the host cells in ER quantification was observed. Furthermore, the extended applicability of the new technique was demonstrated by monitoring ER production in cell culture thus rendering it a valuable tool to ensure consistency between vaccine lots and to evaluate optimal vaccine dosage. 相似文献