摘要
为了解安徽部分地区规模鸡场鸡毒支原体(Mycoplasma gallisepticum,MG)和鸡滑液囊支原体(Mycoplasma synoviae,MS)流行感染情况,试验采集21家鸡场鸡血液样品进行血清学调查,并对3家种鸡场的种鸡群及其后代雏鸡进行MG和MS的病原检测,分析种鸡及其后代雏鸡的感染情况。结果显示,MG和MS的鸡场血清阳性率分别为95.24%和90.48%,鸡群平均血清阳性率分别为75.08%和77.01%;商品蛋鸡和种鸡的MG和MS血清阳性率高于育雏育成鸡;鸡群日龄越大,MG和MS的血清阳性率越高,其中300日龄以上鸡群的血清阳性率均为100%。病原检测发现,种鸡场存在不同程度的MG和MS感染,其中MS感染率高于MG;种鸡感染率与其后代雏鸡的垂直感染存在显著正相关,并且在垂直感染的雏鸡关节组织检测出MS病原。结果表明,MG和MS在安徽鸡场中的感染较为严重,垂直传播是雏鸡早期感染的重要途径,并且MS在雏鸡垂直感染的早期即可侵入关节组织。
In order to understand the prevalence of Mycoplasma gallisepticum(MG)and Mycoplasma synoviae(MS)infec-tions in scaled chicken farms in some areas of Anhui province.Serum samples were collected from 21 chicken farms for serologi-cal investigation.MG and MS pathogens detection was also performed on breeder flocks and their offspring chicks from three breeding farms to analyze their infection status.The results showed that the seropositivity rates of MG and MS in the farms were 95.24%and 90.48%,and in the flocks were 75.08%and 77.01%,respectively;The seropositivity rates of MG and MS in commer-cial laying hens and breeder chickens were higher than those in layer-type pullets.The seropositivity rates for MG and MS in-creased with the increasing of ages,where 100%in flocks at over 300 days of age.Pathogen detection found varying degrees of MG and MS infections in three breeder farms,with a higher infection rate of MS than MG.There was a significant positive correla-tion between the infection rate in breeders and vertical infection in their offspring chicks,and the MS pathogen was detected in the leg joint tissue of infected 2-day-age chicks.It was indicated that MG and MS infection were severe in Anhui chicken farms,vertical transmission was an important route for early infection of MG and MS in chicks,and MS could invade joint tissues in the early stages of vertical infection.
作者
沈学怀
侯宏艳
赵瑞宏
尹磊
张丹俊
戴银
殷冬冬
王洁茹
胡晓苗
潘孝成
王红燕
SHEN Xuehuai;HOU Hongyan;ZHAO Ruihong;YIN Lei;ZHANG Danjun;DAI Yin;YIN Dongdong;WANG Jieru;HU Xiaomiao;PAN Xiaocheng;WANG Hongyan(Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering,Institute of Animal Husbandry and Veterinary Science,Anhui Academy of Agricultural Sciences,Hefei,Anhui 230031;Research and Development Center of Livestock and Poultry Disease Prevention and Control Technology,An-hui Academy of Agricultural Sciences,Hefei,Anhui 230031;College of Veterinary Medicine,Nanjing Agricultural University,Nanjing,Jiangsu 210095;Animal Epidemic Prevention Station of Xuancheng City,Xuancheng,Anhui 242000)
出处
《中国家禽》
北大核心
2024年第2期76-81,共6页
China Poultry
基金
安徽省重点研究与开发计划(202204c06020039)
现代农业产业技术体系建设专项资金(CARS-40)
安徽省农业科学院平台项目(2023YL013)。
关键词
安徽
规模鸡场
鸡毒支原体
鸡滑液囊支原体
血清学调查
垂直传播
Anhui
scaled chicken farms
Mycoplasma gallisepticum
Mycoplasma synoviae
serological investigation
verti-cal transmission
