College of Veterinary Medicine, South China Agricultural University, Guangzhou, P.R. China.
Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shanguan, P.R. China.
Vet Q. 2024 Dec;44(1):1-11. doi: 10.1080/01652176.2024.2412297. Epub 2024 Oct 12.
Pigeon coccidiosis caused by spp. is an important veterinary disease with a significant economic impact on the pigeon industry. Preventive measures for in pigeons have been hampered by the lack of extensive genetic, morphological, and biological data on the oocysts. In this study, we examined the prevalence and identity of spp. in domestic pigeons from seven cities in Guangdong Province, China. Data show that coccidiosis was prevalent in domestic pigeons in Guangdong Province, with an overall spp. detection rate of 73.4%. Five species were identified, including (73.4%), (25.6%), (19.6%), (19.6%), and (6.7%). We obtained single oocyst-derived lines of the dominant from fecal specimens. oocysts measured 20.06 ± 0.69 μm × 18.63 ± 1.03 μm, and sporocysts measured 10.29 ± 0.82 μm × 85.38 ± 0.46 μm. In infection experiment using obtained isolates, 60-day-old coccidia-free pigeons exhibited a prepatent period of 105 h and patent period of 9-10 days followed by severe diarrhea, depression, anorexia, and emaciation. Endogenous development of the parasite was observed mainly in the cytoplasm of epithelial cells in the duodenum, jejunum, ileum, and rectum. Two generations of meronts developed on days 3 and 4 after infection, respectively, while gamont and gamete developed on day 5 after infection. The morphological, genetic, and biological data are expected to be useful in elucidating the biological characterization of pigeon coccidiosis to develop measures against the treatment and containment of this disease.
鸽球虫病由 spp.引起，是一种重要的兽医疾病，对鸽业有重大的经济影响。由于缺乏对卵囊的广泛遗传、形态和生物学数据，鸽球虫病的预防措施受到了阻碍。在这项研究中，我们检查了来自中国广东省七个城市的家鸽中 spp.的流行情况和身份。数据显示，广东的家鸽球虫病流行， spp.的总检出率为 73.4%。鉴定出了 5 种 spp.，包括 （73.4%）、 （25.6%）、 （19.6%）、 （19.6%）和 （6.7%）。我们从粪便标本中获得了优势 spp.的单个卵囊衍生株。 卵囊大小为 20.06 ± 0.69 μm×18.63 ± 1.03 μm，孢子囊大小为 10.29 ± 0.82 μm×85.38 ± 0.46 μm。在使用获得的 spp.分离株进行感染实验中，60 日龄无球虫的鸽子表现出 105 小时的潜伏期和 9-10 天的发病期，随后出现严重腹泻、抑郁、食欲不振和消瘦。寄生虫的内生发育主要发生在十二指肠、空肠、回肠和直肠的上皮细胞细胞质中。分别在感染后第 3 天和第 4 天形成两代裂殖体，而在感染后第 5 天形成配子体和配子。形态学、遗传学和生物学数据有望有助于阐明鸽球虫病的生物学特征，从而制定针对该疾病的治疗和控制措施。
