Department of Epizootiology with Clinic of Birds and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, pl. Grunwaldzki 45, 50-366, Wrocław, Poland.
Clinic for Poultry and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria A-1210.
Avian Dis. 2020 Dec 1;64(4):547-551. doi: 10.1637/aviandiseases-D20-00042.
Tetratrichomonas is a genus of parasites that usually inhabits the lower digestive tract, especially the cecum, of various bird species. The infection might lead to birds' death, but in many cases it could be asymptomatic or with mild clinical signs which might be not observed. Subclinical infections can be undiagnosed, leading to production losses. To investigate the prevalence of Tetratrichomonas spp. in geese, 23 cloacal swabs were taken from each of 43 flocks of reproductive geese from five major geese production provinces in Poland after first, second, or third laying season. The obtained swabs were placed in culture medium for propagation of the parasite. All cultures were screened microscopically before PCR was applied to detect the parasites' DNA. After cultivation, the presence of genetic material of Tetratrichomonas was found in 430 out of 989 samples, which correspond to 38 (88.4%) of 43 flocks. The study shows how the number of laying seasons and the size of the flock in which the birds were kept affects the distribution of protozoa of the genus Tetratrichomonas in geese reproductive flocks in Poland.
滴虫是一种寄生虫，通常栖息在各种鸟类的下消化道，特别是盲肠中。感染可能导致鸟类死亡，但在许多情况下，感染可能无症状或仅有轻微的临床症状，这些症状可能未被观察到。亚临床感染可能无法被诊断，导致生产损失。为了调查波兰五个主要鹅生产省份的繁殖鹅群中滴虫属的流行情况，在首次、第二次或第三次产蛋季后，从每个鹅群的 43 只鹅中采集了 23 个泄殖腔拭子。获得的拭子被放置在培养介质中以繁殖寄生虫。所有培养物在应用 PCR 检测寄生虫 DNA 之前都进行了显微镜检查。培养后，在 989 个样本中的 430 个样本中发现了滴虫属的遗传物质，这对应于 43 个鹅群中的 38 个（88.4%）。该研究表明，产蛋季节的数量和饲养鹅群的规模如何影响波兰繁殖鹅群中滴虫属原生动物的分布。
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