EIMERIA-TENELLA INFECTION ENHANCES SALMONELLA-TYPHIMURIUM INFECTION IN CHICKENS
EIMERIA-TENELLA INFECTION ENHANCES SALMONELLA-TYPHIMURIUM INFECTION IN CHICKENS
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DOI：
10.3382/ps.0602203
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发表时间：
1981-01-01
期刊：
影响因子：
4.4
通讯作者：
FUKATA, T
中科院分区：
文献类型：
--
作者：
ARAKAWA, A;BABA, E;FUKATA, T
通过3项试验，研究鼠伤寒沙门氏菌和柔嫩沙门氏菌同时感染对鸡体内沙门氏菌感染的影响。实验共设4组：未感染的对照组、感染5万只柔毛虫卵囊的鸟类、感染.apprx的鸟类。104种鼠伤寒沙门氏菌，以及同时感染貂肉绦虫和鼠伤寒沙门氏菌的鸟类。在第1个试验中，采用3个相同的试验，每个试验80只鸡，分别于1、3、5和7天后死亡。球虫和沙门氏菌同时感染对盲肠中沙门氏菌的数量和沙门氏菌阳性禽的数量没有显著增加。在第二个试验中，共3个重复，每个重复80只鸡，分别在球虫暴露当天、暴露后2天、暴露后4天、暴露后6天接触沙门氏菌，1天后屠宰。与单独接触沙门氏菌相比，球虫感染鸡盲肠中的沙门氏菌没有显著增加。在第3个试验中，连续3个重复，每个重复60只鸡，分别暴露于沙门氏菌1 ~ 5 d，球虫感染后7、10和14 d处死。与单独感染沙门氏菌的鸡相比，球虫感染的盲肠中沙门氏菌的数量和盲肠或肝脏中沙门氏菌阳性的数量显著增加。
Three experiments were conducted to investigate the effects of concurrent infections of S. typhimurium and E. tenella on establishment of salmonella infection in chickens. There were 4 groups in all experiments: noninfected controls, birds infected with 50,000 E. tenella oocysts, birds infected with .apprx. 104 S. typhimurium, and birds infected with a combination of E. tenella and S. typhimurium. In the 1st experiment with 3 identical trials of 80 birds each, chickens were infected with the organisms and necropsied 1, 3, 5 and 7 days later. Concurrent infections of coccidia and salmonella did not significantly enhance salmonella infection in terms of number of salmonella in the ceca and the number of positive birds for salmonella. In the 2nd experiment, consisting of 3 replications of 80 chickens each, birds were exposed to salmonella on the day of coccidia exposure, 2, 4 or 6 days thereafter and killed 1 day later. Salmonella in the ceca of coccidia-infected chickens did not increase significantly as compared with salmonella exposure alone. In the 3rd experiment, with 3 replications of 60 birds each, chickens were exposed consecutively to salmonella for 1 through 5 days and killed 7, 10 and 14 days after coccidia infection. There was a significant increase in the number of salmonella in coccidia-infected ceca and the number of chickens positive for salmonella in ceca or in liver when compared with those of salmonella infection alone.