四种消毒剂对细菌,病毒的杀灭效果观察

鸡大肠杆菌病、沙门氏菌病、新城疫病等常见病严重威胁着养鸡业的发展 ,而传统的防治方法是使用抗菌药物及疫苗 ,但在畜牧业生产中 ,单纯采用抗菌药物治疗与疫苗预防是无法满足生产需要的 ,故疫苗、抗菌药物及消毒剂的综合使用对上述疾病的防治具有重要的意义。目前我国消毒剂种类繁多 ,但低毒、高效者为数不多 ,所以在众多的消毒剂中通过试验选择出效果好的消毒剂就显得尤为重要 ,为验证我组多年来自行配制的四种消毒剂对细菌、病毒的杀灭效果 ,特进行了以下实验 ,为几种消毒剂的临床推广和正确使用提供科学的依据。现将实验报告如下。1　…     

规模化鸡场消毒剂的筛选与消毒效果评价

为评价消毒剂对规模化鸡场的消毒效果,采用有限稀释法和茵悬混合液定量杀菌试验分别测定50 g/L苯扎溴铵(A)、20 mL/L戊二醛溶液(B)、100 g/L聚维酮碘(C)、100 g/L癸甲溴铵(D)和过硫酸氢钾复合物粉(E)5种消毒剂对大肠埃希茵最小杀菌浓度(MBC)和杀灭对数值;采用带鸡消毒试验对5种消毒剂进行现场...     

鸡场中常用消毒剂的使用

1氧化剂1.1过氧乙酸(又名过氧醋酸)为高效消毒剂,具有杀菌作用快而强、抗菌谱广的特点,对细菌、病毒、霉菌和芽孢均有效,但有腐蚀性和刺激性,容易腐蚀金属制品,可配成2‰～5‰的溶液,喷雾消毒棚圈、场地、墙壁、用具、车船、粪便等。对诊断室、无菌室、孵化室、贮蛋室,用5%的溶     

大型鸡场带鸡消毒剂筛选和消毒效果评价

在西宁华青蛋禽公司用正交试验进行试验设计，用定量载体试验测定过氧乙酸、百毒杀、杀特灵、消毒王４种消毒剂对蜡样芽胞杆菌４００１株芽 杀灭率。经直观分析、方差分析、多重比较等方法综合评价，以消毒王最佳。最佳消毒搭配为Ａ４Ｂ２Ｃ１，即消毒王的浓度为１：１０００，用量为９０ｍｌ／ｍ＾２，雾滴直径为１４０μｍ，作用时间３０ｍｉｎ。实地试验鸡群（１３５６３只）从１日龄开始，每天带鸡消毒１次，直至育成结束，死淘     

鸡场消毒注意事项

（一）彻底清除环境中的有机物 消毒剂的消毒效果与消毒环境中的有机物含量成反比,即环境中有机物越多,消毒效果就越差。因为有机物能够掩盖病原体,降低消毒剂与病原体结合的机会,对病原体起保护作用,所以规模鸡场在消毒前一定尽可能彻底清除鸡笼、地面、墙壁、物品上的鸡粪、羽毛、粉尘、污秽垫料和屋顶蜘蛛网等,以提高消毒效果。     

鸡场土壤中大肠杆菌的检测与化学消毒剂筛选

应用平板计数法和大肠菌群最大或然数(MPN)法对44份养鸡场土壤样品污染情况进行测定,结果表明春秋季土壤污染较夏冬季严重;以从养鸡场土壤样品中分离鉴定的大肠杆菌作为指示菌,对戊二醛和二氧化氯的杀菌效力进行了测定,定量悬浮试验结果表明0.01％戊二醛作用30 min、0.02％戊二醛作用5 min、25 mg/L二氧化氯作用10 min,对大肠杆菌的杀灭率均达到100％.以土壤为载体的消毒试验结果表明0.01％戊二醛作用30 min、0.02％戊二醛作用10 min和300 mg/L二氧化氯作用30 min、400 mg/L二氧化氯作用10 min,对大肠杆菌的杀灭率均达到100％,两种消毒剂均具有良好的杀灭效果.     

含氯消毒剂在鸡场禽流感流行中的消毒作用

在禽流感流行的情况下，强化养鸡场的环境消毒是防治禽流感的重要措施，也是养殖场兽医防疫体系和环境管理的重要组成部分。环境消毒指杀灭或清除被病原体污染的场内环境，畜体表面，设备、水源等的病原微生物，切断传播途径，使之达到无害化，防止疾病发生和蔓延。应当注意，消毒和灭菌代表着两个不同的概念，也对应着不同的药物。在选择消毒剂和灭菌剂时要注意它们二者间的区别。一般来说，消毒剂不     

影响鸡场消毒的因素

消毒就是将病原微生物在入侵机体之前，于机体之外杀死，以减少和控制疾病的发生。鸡场管理工作者应当树立预防为主，防重于治，消毒重于投药的观念。通过消毒杀灭环境中的病原微生物，杜绝或减少传染性疾病的发生。目前在集约化养殖场和个体养殖场都非常重视消毒，但影响消毒剂消毒效果的因素较多，应予注意。     

Continuous disinfection as a means to control infectious diseases in poultry. Evaluation of a continuous disinfection programme for broilers

A full continuous disinfection programme, consisting of disinfection during cleanout of poultry houses prior to placement of chickens, disinfection of the drinking water and spray disinfection of the birds during production was evaluated in broilers under experimental condition as well as under field conditions. Under controlled conditions, the experimental design consisted of three groups, two of which were control groups. Each group comprised 300 chickens. In one of the control groups, no disinfection of the pens was undertaken prior to the placement of the chickens. In the other control group, disinfection of the pens prior to placement of the birds was carried out using a glutaraldehyde-based product. In the test group, disinfection prior to placement was done. The drinking water of these birds was treated continuously and the birds were sprayed with a non-toxic disinfectant during production. Production parameters, such as growth rate, feed conversion ratio and feed consumption, of the birds in the three groups were monitored. In addition, all mortalities in the different groups were recorded and classified into diseases of an infectious nature, non-infectious nature and unknown category. Bacterial counts were also done on a weekly basis from the different pens. In this experiment, it was shown that the full continuous disinfection programme resulted in a lower number of mortalities caused by infectious agents as well as a reduction in the bacterial counts in the pens treated with the full continual disinfection programme. The full continuous disinfection programme was also tested on a commercial poultry farm in the Northern Cape Province of South Africa. Two production houses of 3,500 birds were randomly selected as test houses for the full continuous disinfection programme. Another similar house, which received day-old chicks from the same batch as the other two houses, was selected as the control house; it received the routine disinfection procedure prior to placement of the chicks. During the course of this experiment, a severe outbreak of Newcastle disease was experienced on this farm. It was demonstrated that, in the face of this severe challenge, the full continuous disinfection programme controlled the spread of the disease in both the houses where it had been applied at a stage when in every other house (including the control house) on the farm birds were suffering very high mortalities.     

养殖场的隐形杀手--霉菌毒素

目前,霉菌毒素的问题已经成为全球性问题,它正以一个隐形杀手的角色每年给饲料谷物行业和畜禽养殖业造成数以亿计的经济损失。但是,它的危害并没有引起人们太多的重视,本文全面报道了霉菌毒素的种类、危害以及人们对它的研究进展,还提出了对它的控制方法,有实用价值。     

强化消毒 控制蚕病

去年晚秋,我市部分蚕区由于蚕血液性脓病在5龄蚕期大暴发,大部分蚕农颗粒无收,损失惨重。通过调查分析,主要原因在于广大蚕农对消毒认识不足,消毒走过场,消毒防病方法陈旧、单一,消毒效果差。为此,我们指导蚕农提高消毒防病认识,强化消毒,严格做好蚕病防控工作。     

加强浴消技术处理 确保蚕种质量

越年蚕种的冬季保护（浴消和冷藏）是蚕种生产过程中的重要一环,浴消整理工作是否适时合理、认真细致,直接影响蚕种质量和孵化率。因此必须按照蚕卵冬季生理要求,掌握标准,认真操作,杜绝差错,加强浴消技术处理工作,确保越年蚕种的质量。     

如何做好犬舍卫生消毒工作

许多病毒、病菌侵入犬机体后无论发病与否,都可能通过尿液、粪便排毒,有的长期排毒,所以有犬活动的地方,基本都有病毒(菌)存在,为了防止病毒(菌)传播,我们应对犬集中活动的地方进行消     

Determining Treatment to Control Two Multidrug-Resistant Parasites on a Texas Horse Farm

A study was undertaken at the Texas A&M Horse Center to evaluate and compare the effectiveness of three anthelmintics—ivermectin, fenbendazole, and a combination of ivermectin and pyrantel pamoate—on fecal egg count reductions of cyathostomes and Parascaris equorum in 30 naturally infected foals. The foals were randomized into three treatment groups, with individuals being rerandomized after each 8-week observation period. The treatments of ivermectin and fenbendazole were given at the manufacturer's recommended doses, and the pyrantel treatment was given at two times the manufacturer's recommended dose. Fecal egg counts were performed at the time of treatment and at 2-week intervals after treatment for a total of 8 weeks. Each foal received a total of three treatments during the course of the study. Fecal egg counts were performed by a modified McMaster's test, with a sensitivity of 25 eggs per gram of feces, and by the modified Wisconsin double centrifugal flotation technique, with a sensitivity of 0.2 eggs per gram of feces. Fecal egg reduction percentages were calculated. Analysis of the results showed that ivermectin, either used alone or with pyrantel, was a more effective anthelmintic for cyathostome (small strongyle) control than fenbendazole. Fenbendazole and pyrantel showed a higher initial reduction in Parascaris egg counts when compared with the ivermectin-only-treated group, but this difference lessened over time. The use of the combination treatment showed the best results for controlling both parasites, indicating that a combination of anthelmintics may be necessary to control parasites on some equine farms.     

Environmental disinfection to control equine infectious diseases.

Cleaning and disinfection are essential to the environmental control of infectious diseases of all animals. By understanding the types of pathogens, environment, and disinfection process, success can be attained in effectively stopping disease outbreaks.