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頁籤選單縮合
題 名 | 家禽種禽及孵化場之沙門氏桿菌疫情與抗藥性分析=Analysis of Prevalence and Antimicrobial Resistance of Salmonella Enterica in Poultry Breeders and Hatchery |
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作 者 | 謝志宏; 朱紀實; 蘇耀期; 王誠明; 余章游; | 書刊名 | 嘉大農林學報 |
卷 期 | 5:1 2008.02[民97.02] |
頁 次 | 頁70-86 |
分類號 | 437.243 |
關鍵詞 | 沙門氏桿菌症; 抗藥性; 抗藥性基因; 聚合酶鏈反應; 種禽; 孵化場; Salmonellosis; Antimicrobials resistance; Antimiceobials resistant gene; Polymerase chain reaction; Breeder; Hatchery; |
語 文 | 中文(Chinese) |
中文摘要 | 沙門氏桿菌症(Salmonellosis)是重要的人畜共通疾病,近年來沙門氏桿菌(Salmonella,S.)之抗藥性愈來愈嚴重;此外,含有五聯體抗藥性[ampicillin (A), chloramphenicol (C), streptomycin (S), sulfonamide (Su) and tetracycline (T); ACSSuT] 基因之多重抗藥性S. Typhimurium DT 104,也已在全世界各地流行,其它血清型別之抗藥性也逐漸增加,儼然成為公共衛生之重要問題。家禽食品是人類遭受沙門氏桿菌症感染之主要來源,初生雛禽最容易感染此菌,其感染主要源來自種禽及孵化場;故本研究調查種禽及孵化場之沙門氏桿菌疫情,並分析菌株對10 種抗菌劑之抗藥性,包括傳統的抗菌劑:ampicillin (A)、 chloramphenicol (C)、 streptomycin (S)、 sulfamethoxazole-trimethoprim (Su) 和 tetracycline(T),以及新型藥劑::enrofloxacin (En)、flumequine (Ub)、 cefazolin (Cz)、 ceftriazone (Cro)、ciprofloxacin (Ci);再以多重聚合酶鏈反應 (multiplex polymerase chain reaction, PCR) 檢測 菌株是否有S. Typhimurium DT 104 基因島 (Salmonella genomic island) 之integron (IN104),針對pse、floR、aadA2、sulI 和tetG 五聯體抗藥性基因進行測試。樣本包括採集自孵化場之孵化蛋殼和種禽屠宰場之腸道及生殖道。結果如下:仿土雞種雞盲腸與生殖道之沙門氏桿菌分離率為58.5%及54.3%,皆顯著高於白羅曼鵝種鵝的15.6%及8.9% (p < 0.05);孵化場之分離率,白羅曼鵝顯著高於仿土雞,分別為29.1%及5.7% (p < 0.05),從孵化場之管理方法得知,仿土雞種蛋於孵化前有進行燻蒸消毒,而鵝種蛋則無;本調查總 共得232 株菌株,以對streptomycin 具抗藥性頻率最高,為78.02%,含有ACSSuT 五重抗藥性菌株佔53.02%,由雞來源之菌株檢出率為75.0%,顯著高於鵝來源之32.5% (p < 0.05);然而,232 株菌株只有26 株有1-4 種IN 104 五聯體抗藥性基因檢出,並無菌株同時檢出五種基因。依據上述結果得知:仿土雞種雞對沙門氏桿菌之感受性高於白羅曼鵝種鵝,故飼養過程較常投藥控制疫情,導致抗藥性問題較為嚴重;家禽孵化場之良好種蛋衛生管理,應可有效控制沙門氏桿菌傳播;所分離之菌株並未具有IN 104 之五聯體抗藥性基因,但仍可能有其他型別之Integron I,值得深入探討。 |
英文摘要 | Salmonellosis is one of important zoonosis. Recently increase of multidrug resistant Salmonella is concerned in curing the Salmonella infection and in public health. For example, pentadrug [ampicillin (A), chloramphenicol (C), streptomycin (S), sulfonamide (Su) and tetracycline (T); ACSSuT] resistant Salmonella enterica serovar Typhimurium DT 104 have been disseminated in animals and human all over the world. Poultry products have been identified as one major source to spread salmonellosis. Young birds are more susceptible to infection by Salmonells. Moreover, Salmonella infection of young birds was highly associated with carrier breeders and contaminated hatcheries. Therefore, we investigated Salmonella enterica infection in the breeders of geese and chickens and to test antimicrobials susceptibility of Salmonella enterica strains to 10 antimicrobials including ampicillin, chloroamphenicol, streptomycin, sulfamethoxazole/trimethoprim (Su), tetracycline, cefazolin, ceftriaxone, ciprofloxacin, enrofloxacin and flumequine. A published multiplex polymerase chain reaction (PCR) was used to detect the five antimicrobial resistant genes including aadA2, floR, pse, sulI and tetG of Salmonella genomic island (SGI). Samples were collects from hatcheries and breeder butcheries. The Salmonella isolation rates from chicken ceca and reproduction tract, 58.5% and 54.3% were significantly higher than those from goose, 15.6%and 8.9% (p<0.05). The ACSSut resistance rate of the strains from chickens, 75.0% was significantly higher than that from geese, 32.5%. Medication to control salmonellosis should be praticed frequently in chicken farms because chickens' high susceptibility. Therefore, the problems of drug resistence in chickens is svere. In hatcheries, the isolation rate from geese, 29.1% was was significantly higher than that from chickens, 5.7%. According to the pratice of hatcheries, fumigation was performed in chicken hatcheries and not in he goose. The highest resistance rate was 78.02% in 232 strains to streptomycin and 53.02% showed ACSSuT resistance. However, only 26 strains exhibited 1-4 genes in IN 104 pentadrug resistant genes, and no strain showed 5 genes. Therefore, we did not find IN 104 positive Salmonella, but the emergence of another patterns of Integron I should be investigated. |
本系統中英文摘要資訊取自各篇刊載內容。