Koudela B, Boková A
Institute of Parasitology, Academy of Sciences of the Czech Republic, Ceské Budejovice.
Vet Parasitol. 1998 Apr 30;76(4):261-7. doi: 10.1016/s0304-4017(97)00147-7.
An observational study was conducted to determine coccidial infections in goats of 13 farms in the Czech Republic. The prevalence of oocysts of Eimeria species in kids (less than 3 months old), weaned but not served goats (from 3 months to 1 year), and adult goats (1 year or more) was determined. Nine Eimeria species were identified in fecal samples by Sheather's sugar flotation technique. The overall prevalence of Eimeria oocysts in fecal specimens was 92.2%. Eimeria arloingi was the most common species with an overall prevalence of 84%, followed by E. hirci (63%) and E. ninakohlyakimovae (56%). Other species present were E. christenseni (55%), E. alijevi (36%), E. caprina (25%), E. aspheronica (12%), E. capriovina (6%) and E. jolchijevi (2%). Two or more Eimeria species were detected in 88% of the samples. The most prevalent species in kids was E. arloingi, while in weaned but not served and adult goats E. ninakohlyakimovae was the most frequently found. The number of oocysts excreted was generally lower in adult goats (2567.3+/-12678 OPG), whereas higher number oocyst per gram of feces (OPG) were found in kids (18565+/-24888 OPG). Clinical coccidiosis was detected in two farms, and E. arloingi and E. ninakohlyakimovae were implicated as its cause. Disease was observed in kids 2 to 4 weeks after weaning and watery feces with clumps of mucus, and color changes from brown to yellow or dark tarry, weight loss, and dehydration were the most conspicuous clinical signs. At necropsy, macroscopic changes included mucosal hemorrhages and whitish nodular polyps in the jejunum were found. Histopathological changes were characterized by local hypertrophy and hyperplasia of intestinal villi, villus blunting and inflammatory infiltration in the lamina propria. Numerous developmental stages of the parasites were observed in enterocytes and lacteals of intestinal villi.
开展了一项观察性研究，以确定捷克共和国13个农场山羊的球虫感染情况。测定了幼羊（小于3个月大）、断奶但未配种山羊（3个月至1岁）和成年山羊（1岁及以上）中艾美耳属球虫卵囊的流行率。通过Sheather糖浮选技术在粪便样本中鉴定出9种艾美耳属球虫。粪便标本中艾美耳属球虫卵囊的总体流行率为92.2%。阿氏艾美耳球虫是最常见的种类，总体流行率为84%，其次是山羊艾美耳球虫（63%）和纳氏艾美耳球虫（56%）。其他存在的种类有克里斯滕森艾美耳球虫（55%）、阿里耶夫艾美耳球虫（36%）、山羊艾美耳球虫（25%）、非球形艾美耳球虫（12%）、卡普里诺维纳艾美耳球虫（6%）和约尔奇耶维艾美耳球虫（2%）。88%的样本中检测到两种或更多种艾美耳属球虫。幼羊中最常见的种类是阿氏艾美耳球虫，而在断奶但未配种的山羊和成年山羊中，纳氏艾美耳球虫是最常发现的。成年山羊排出的卵囊数量通常较低（每克粪便2567.3±12678个卵囊），而幼羊每克粪便中发现的卵囊数量较高（每克粪便18565±24888个卵囊）。在两个农场检测到临床球虫病，阿氏艾美耳球虫和纳氏艾美耳球虫被认为是其病因。在断奶后2至4周的幼羊中观察到疾病，最明显的临床症状是带有黏液团块的水样粪便，颜色从棕色变为黄色或深黑色，体重减轻和脱水。尸检时，宏观变化包括空肠黏膜出血和白色结节状息肉。组织病理学变化的特征是肠绒毛局部肥大和增生、绒毛变钝以及固有层炎症浸润。在肠绒毛的肠上皮细胞和乳糜管中观察到大量寄生虫的发育阶段。
