家兔黄艾美耳球虫(Eimeria flavescens)活虫苗免疫预防的研究

本试验使用黄艾美耳球虫(Eimeria flavescens)活虫苗重复免疫2月龄新西兰品种无球虫兔,建立3种免疫程序:Ⅰ均等高剂量免疫;Ⅱ均等低剂量免疫;Ⅲ加倍递增剂量免疫。免疫过程中,对临床症状,增重,卵囊排出量,肠道粘膜的表面形态病变,特异性血清 IgG 效价进行了比较研究。综合分析表明加倍递增剂量免疫组(免疫5次,间隔5 d,起始卵囊量为200个·只^(-1)·次^(-1))效果最好,攻虫后卵囊排出量和增重与对照组相比差异极显著或差异显著(P<0.01,或0.01<P<0.05),保护率86.7%,临床症状和肠道粘膜的病变均比较轻微。免疫保护性明显优于另外2种免疫程序,相当于杀球灵(Diclazuril)1×10^(-6)拌料预防的效果(保护率96.1%)。特异性血清 IgG 效价差异不明显。

猪囊虫灭活油乳剂虫苗小区免疫试验报告

猪囊虫灭活油乳剂虫苗小区免疫试验报告潘荣彭彦斌余景枫刘勤（巴彦县畜牧局·１５１８００猪囊尾蚴虫病是人猪共患的寄生虫病，危害甚大，不仅给养猪事业带来巨大经济损失，而且严重地威胁着人身心健康。由于我省农民存在散养习惯，加之农村卫生条件较差，故该病的发病率...

兔球虫疫苗的研究现状

兔球虫病是家兔最常见、危害最严重的疾病之一,国内外多采用抗球虫药物对兔球虫病进行预防和治疗。目前为止,我国还没有研制出商品化的兔球虫疫苗,国内外仅有少部分学者开展了兔球虫病疫苗的研究工作。主要对兔球虫疫苗活虫苗、亚单位苗、基因工程苗的研究进展进行综述,以期为兔球虫疫苗的相关研究提供参考。

Study on the Activity of Herbal Extract to Kill Root-knot Nematode of Cucumber Seedlings Stage

Present mature plants hydroponic technology was used,combined with some excellent characteristics,such as growth conditions was easy to control and process of root growth was easy to continuously observe,the nematicidal activity of 5 kinds of Chinese herbs extracts and the compound solution of Avermectin,with strong contact toxicity effect indoor,was systematically studied and investigated the affection on the root-knot nematode parasitized on the cucumber seeding stage. It is found that under the premise of no influence on root growth of cucumber,extracts from Picrorhiza scrophulariiflora and Punica granatum showed strong prevention and nematicidal activity,and had the similar efficacy of Avermectin; while the extracts from Cibotium barometz,Aucklandia lappa Decne and Fructus cnidii showed low nematicidal activity and various degrees inhibition effect on plant growth.