Hobson N, Chousalkar K K, Chenoweth P J
School of Animal and Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia.
Aust Vet J. 2013 Nov;91(11):469-73. doi: 10.1111/avj.12113.
The primary objective of this study was to confirm the infection status of Ureaplasma diversum in Australian bulls and to identify morphological changes of sperm from U. diversum-positive bulls.
Fresh semen samples were taken from 29 sexually active beef bulls from suspect herds in the Riverina/Upper Murray region. U. diversum was identified using PCR analyses and culture of the organism.
Nine of the bulls were PCR-positive for U. diversum but none of these had genital lesions. Sperm from infected bulls showed increased incidence of abnormal tails (bent and coiled), as well as surface abnormalities (i.e. small protuberances or lumps).
The results suggest impairment of sperm function and possibly fertility. Further investigations into the potential role of U. diversum as a pathogen for Australian cattle are warranted.
本研究的主要目的是确认澳大利亚公牛中解脲脲原体的感染状况，并确定解脲脲原体阳性公牛精子的形态变化。
从里弗赖纳/上墨累地区可疑牛群的29头性活跃肉用公牛采集新鲜精液样本。使用聚合酶链反应（PCR）分析和该生物体培养来鉴定解脲脲原体。
9头公牛的解脲脲原体PCR检测呈阳性，但这些公牛均无生殖器病变。受感染公牛的精子出现异常尾部（弯曲和卷曲）以及表面异常（即小突起或肿块）的发生率增加。
结果表明精子功能受损，可能影响生育能力。有必要进一步研究解脲脲原体作为澳大利亚牛病原体的潜在作用。
