School of Animal and Veterinary Science, University of Adelaide, Roseworthy, South Australia 5371, Australia.
Prev Vet Med. 2012 Sep 1;106(1):75-8. doi: 10.1016/j.prevetmed.2012.02.018. Epub 2012 Mar 27.
Mycoplasma synoviae (M. synoviae) can cause respiratory disease, synovitis, or result in a silent infection in chickens and turkeys. The importance of M. synoviae is well established in broilers but only a few studies have been conducted in layers. In the present study, the prevalence of M. synoviae in commercial layer flocks was estimated using ELISA. For this study, 19 commercial layer flocks were selected randomly from New South Wales and Queensland region of Australia from producers who were willing to participate in the survey. Sixty eggs per flocks were randomly collected, out of these 30 eggs were used for ELISA and remaining 30 eggs were used to estimate various egg shell quality parameters. Subsequently, association between the serological status of eggs for M. synoviae and egg shell quality was studied. In the flocks under study, seroprevalence of M. synoviae was found to be high at 69% (95% confidence interval (CI)=41.3-89.0). Statistical analysis showed an association between serological status for M. synoviae and egg quality parameters such as translucency, shell breaking strength, % shell reflectivity and shell deformation. On the other hand, there was no significant association between serological status for M. synoviae and other egg quality parameters such egg weight, egg shell weight, % egg shell or shell thickness.
滑液支原体（M. synoviae）可引起鸡和火鸡的呼吸道疾病、关节炎，或导致无症状感染。滑液支原体在肉鸡中的重要性已得到充分证实，但在蛋鸡中仅有少数研究。在本研究中，采用 ELISA 法估计商业蛋鸡群中滑液支原体的流行情况。为此，从澳大利亚新南威尔士州和昆士兰州愿意参与调查的生产者中随机选择了 19 个商业蛋鸡群。从每个鸡群中随机采集 60 枚鸡蛋，其中 30 枚用于 ELISA，其余 30 枚用于估计各种蛋壳质量参数。随后，研究了鸡蛋滑液支原体血清学状态与蛋壳质量之间的关系。在所研究的鸡群中，滑液支原体的血清流行率为 69%（95%置信区间（CI）=41.3-89.0）。统计分析表明，滑液支原体的血清学状态与透明度、蛋壳破碎强度、%蛋壳反射率和蛋壳变形等蛋壳质量参数之间存在关联。另一方面，滑液支原体的血清学状态与蛋重、蛋壳重、%蛋壳或蛋壳厚度等其他蛋壳质量参数之间没有显著关联。
