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首页> 外文期刊>Israel Journal of Veterinary Medicine >SALMONELLA ENTERICA SEROVAR ENTERITIDIS EXPERIMENTAL INFECTION IN CHICKENS: EFFECTS OF THE INFECTIOUS DOSE ON CROP IMMUNOGLOBULIN A ANTIBODY RESPONSE
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SALMONELLA ENTERICA SEROVAR ENTERITIDIS EXPERIMENTAL INFECTION IN CHICKENS: EFFECTS OF THE INFECTIOUS DOSE ON CROP IMMUNOGLOBULIN A ANTIBODY RESPONSE

机译：肠炎沙门氏菌血清型实验感染鸡:的影响感染剂量对作物免疫球蛋白抗体反应

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In chickens the crop is an organ for storing food, and for most avian species. Salmonella enterica serovar Enteritidis is an important causative agent of foodborne zoonotic diseases.. This study was conducted to determine the effects of an infectious dose of Salmonella enteritidis on the specific immunoglobulin A (IgA) antibody response of experimentally infected chickens. Twenty four specific-pathogen-free hens were divided into three groups of eight. A group of eight hens were orally with 1.3 x 10(8) colony forming units (cfu) of Salmonella enteritidis and a second group received 1.3 x 10(8)cfu of Salmonella enteritidis per hen. The last group was the uninfected control group.Hens infected with 10(8) cfu/ml of Salmonella enteritidis produced a significantly stronger (P<0.05) specific IgA antibody response than those infected with 10(4)cfu/ml and thee controls. The highest group mean optical density values of enzyme-linked immunosorbent assay (ELISA) test for the chicken groups infected with 10(8) cfu/ml and 10(4) cfu/ml were 4.262 and 1.376 at weeks 4 and 3 post-infection respectively. Levels of crop IgA antibody were shown to be infectious dose-dependent. Hence, chickens exposed to too few colonies of Salmonella may not produce substantial antibodies. In order to confer optimal mucosal immunity in chickens, they should be exposed to an adequate vaccine dose of Salmonella enteritidis.
机译：在鸡作物器官储存食物,和大多数鸟类物种。肠炎型是一个重要的病因代理的食源性人畜共患疾病。进行确定的影响传染性肠炎沙门氏菌的剂量特定的免疫球蛋白(IgA)抗体反应实验感染的鸡。specific-pathogen-free母鸡被分成三组8。口服1.3 x 10(8)集落形成单位(cfu)肠炎沙门氏菌和第二个组1.3 x 10 (8) cfu的沙门氏菌每只母鸡肠炎。未感染对照组。肠炎沙门氏菌产生的cfu /毫升特定IgA明显增强(P < 0.05)比感染抗体反应(4) 10 cfu /毫升和你控制。酶联的平均光密度值免疫吸附试验(ELISA)检测鸡组织感染10(8)和10 cfu /毫升(4)cfu /毫升4.262和1.376在周4和3感染后分别。抗体是传染性存在剂量依赖的相关性。几个殖民地沙门氏菌可能不会产生大量的抗体。最佳的粘膜免疫的鸡,他们应该被暴露在一个适当的剂量的疫苗肠炎沙门氏菌。

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