载铜凹凸棒黏土对鸡白痢的预防和治疗效果

发布时间：2018-01-30 05:40

本文关键词： 载铜凹凸棒黏土鸡白痢沙门菌　出处：《中国兽医学报》2017年07期 　论文类型：期刊论文

【摘要】：用凹凸棒黏土和硝酸铜溶液采用离子交换的方法制备成载铜凹凸棒黏土,将载铜凹凸棒黏土添加于饲料中研究其对鸡白痢的预防和治疗效果。预防试验:将100只1日龄AA蛋鸡随机分成5组,空白组,感染组,预防1组,预防2组,氯霉素预防组。空白组不做任何处理,饲喂正常饲料;感染组于1~15日龄饲喂正常饲料,7日龄灌胃鸡白痢沙门菌菌液;预防组1~15日龄饲喂不同含量的载铜凹凸棒黏土和氯霉素作为预防性给药,7日龄灌胃鸡白痢沙门菌菌液。治疗试验:将100只1日龄鸡随机分成5组,空白组,感染组,治疗1组,治疗2组,氯霉素治疗组。空白组不做任何处理,饲喂正常饲料;感染组于7日龄灌胃鸡白痢沙门菌菌液,饲喂正常饲料;治疗组7日龄灌胃鸡白痢沙门菌菌液,饲喂不同含量的载铜凹凸棒粘土和氯霉素作为治疗性给药。试验过程中监测记录发病率、死亡率、保护率等,平板法测定盲肠和肝脏带菌情况,称重法测定生产性能,常规切片观察空肠组织形态。预防试验结果显示:添加1%的载铜凹凸棒黏土组鸡白痢的发病率(20%)、死亡率(10%)降低,肝脏和盲肠沙门菌的检出率降低,鸡的生产性能提高,肠道黏膜完整,且效果好于添加0.05%氯霉素组和添加0.5%凹凸棒黏土组。治疗试验结果显示:添加1.5%的载铜凹凸棒黏土组鸡白痢的治愈率(75%)增加,死亡率(10%)降低,肝脏和盲肠沙门菌的检出率降低,鸡的生产性能提高,效果好于添加0.1%氯霉素组和添加1%凹凸棒黏土组。结果表明:载铜凹凸棒黏土具有抗菌和肠道黏膜保护作用,能够预防和治疗鸡白痢,降低鸡白痢沙门菌对机体的损伤,提高鸡的生产性能。
[Abstract]:Copper loaded attapulgite clay was prepared by ion exchange method using attapulgite and copper nitrate solution. The effect of copper loaded attapulgite on the prevention and treatment of white dysentery was studied. Prevention test: 100 1-day-old AA laying hens were randomly divided into 5 groups: blank group, infection group and prevention group 1. Prevention group 2, chloramphenicol prevention group. Blank group did not do any treatment, fed normal feed; The infected group was fed with Salmonella pullorum solution at the age of 1 and 15 days. The prophylaxis group was fed with copper loaded attapulgite clay and chloramphenicol as prophylactic infusion solution of Salmonella pullorum at 1 and 15 days of age. Treatment trial: 100 1-day-old chickens were randomly divided into 5 groups. Blank group, infection group, treatment group 1, treatment group 2, chloramphenicol treatment group. The infected group was fed with Salmonella pullorum solution at the age of 7 days. The treatment group was treated with salmonella pullorum solution at the age of 7 days and was fed with copper loaded attapulgite clay and chloramphenicol as therapeutic agents. The cecum and liver were detected by plate method, and the production performance was measured by weighing method. The results of prevention test showed that the incidence of dysentery in the group of adding 1% copper attapulgite was 20% and the mortality was 10% (P < 0.05). The detection rate of salmonella in liver and cecum was decreased, the performance of chicken was improved and the intestinal mucosa was intact. The therapeutic effect was better than that of 0.05% chloramphenicol group and 0.5% attapulgite group. The therapeutic results showed that the cure rate of dysentery was increased in the copper loaded attapulgite group (1.5%). The mortality rate decreased, the detection rate of Salmonella cecum and liver decreased, and the performance of chickens was improved. The effect was better than that of 0.1% chloramphenicol group and 1% attapulgite group. The results showed that copper loaded attapulgite clay had antibacterial and intestinal mucosal protective effects, and could prevent and treat chicken pullorum. Reduce the damage caused by Salmonella pullorum and improve the performance of chicken.
【作者单位】：南京农业大学动物医学院;
【基金】：江苏省凹土资源利用重点实验室开放研究基金资助项目(HPK201506) 通过产学研活动培养应用型创新人才和研究型人才的探索与实践资助项目(2013Y021)
【分类号】：S858.31
【正文快照】： *Corresponding author,E-mail:djyang@njau.edu.cn鸡白痢是由鸡白痢沙门菌引起的最常见的鸡传染病之一,主要危害鸡和火鸡,以出壳后的2周龄的雏鸡为主。雏鸡常常呈现出急性败血症,发病率和死亡率都比较高,因此严重危害养鸡业。目前,鸡白痢的预防和治疗措施主要采用抗生素和其

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