Drug resistance patterns and genotype associations of Trichomonas gallinae in meat pigeons (Columba livia): insights from Guangdong Province, China
文献类型： 外文期刊
作者： Cai, Haiming 1 ; Liu, Yu 1 ; Zhu, Yibin 1 ; Fang, Siyun 2 ; Wang, Dingai 2 ; Yan, Zhuanqiang 2 ; Shen, Hanqin 3 ; Liao, Shenquan 1 ; Qi, Nanshan 1 ; Li, Juan 1 ; Lin, Xuhui 1 ; Hu, Junjing 1 ; Song, Yongle 1 ; Chen, Xiangjie 1 ; Yin, Lijun 1 ; Zhang, Jianfei 1 ; Lv, Minna 1 ; Sun, Mingfei 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Key Lab Livestock Dis Prevent Guangdong Prov, Key Lab Avian Influenza & Other Major Poultry Dis, Inst Anim Hlth,Minist Agr & Rural Affairs, Guangzhou 510640, Peoples R China
2.Wens Foodstuffs Grp Co Ltd, Wens Grp Acad, Xinxing, Guangdong, Peoples R China
3.Guangdong Jingjie Inspect & Testing Co Ltd, Xinxing, Guangdong, Peoples R China
关键词： avian trichomoniasis; Trichomonas gallinae; drug resistant; prevalence; Guangdong Province
期刊名称：FRONTIERS IN VETERINARY SCIENCE （ 影响因子：3.2； 五年影响因子：3.5 ）
ISSN：
年卷期： 2024 年 10 卷
页码：
收录情况： SCI
摘要： Avian trichomoniasis, caused by the protozoan parasite Trichomonas gallinae, is a prevalent and economically significant disease in pigeons. This study investigated the drug resistance of T. gallinae isolates in Guangdong Province, China. The results revealed that 25.3% (20/79) of the isolates were resistant to one or more of the four nitroimidazole drugs tested, namely, metronidazole, dimetridazole, secnidazole, and tinidazole. Secnidazole elicited the highest resistance rate (19.0%; 15/79), followed by tinidazole (17.7%; 14/79), metronidazole (17.7%; 14/79), and dimetridazole (13.9%; 11/79). An enormous majority of the resistant isolates (70.0%; 14/20) exhibited resistance to multiple drugs. Additionally, the resistance rate was significantly higher in isolates from birds aged < 30 days (53.3%; 8/15) than in those from older birds (23.1%; 12/52). Moreover, no drug resistance was detected in female pigeons. The genotype of the isolated strain was also associated with drug resistance. Specifically, 50.0% (15/30) of ITS-B genotypes exhibited resistance to drugs, while only 10.2% (5/49) of ITS-A genotypes demonstrated resistance. This study also found the growth characteristics of different Trichomonas isolates to be influenced by their genotypes and initial inoculum concentrations. These findings underscore the urgent need for effective measures to control and prevent drug-resistant T. gallinae infections in pigeons, thus ensuring the stable development of the pigeon industry.
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