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Abstract：
BACKGROUND: All dogs imported into Iceland must undergo mandatory quarantine in a special station before introduction into the country. A faecal sample is collected from the first stool passed by the dog in this station and subsequently examined for the presence of intestinal parasite stages.
METHODS: In May 2019 unsporulated oocysts were detected in faeces from a 7-year-old household dog that had been imported from Sweden. Most of the oocysts studied strongly resembled those of Eimeria canis Wenyon, 1923. As this species is not valid, the purpose of the present article was to identify the correct species and examine their possible origin. Studies confirmed the presence of two distinct unsporulated oocyst morphotypes in the faeces; measurements and photomicrographs confirmed their identification as Eimeria magna Pérard, 1925 and Eimeria stiedai (Lindemann, 1865) Kisskalt and Hartmann, 1907, both common parasites of European rabbits, Oryctolagus cuniculus (L., 1758). When the owner of the dog was questioned about the food administrated to the dog prior to its import to Iceland, it turned out that it had exclusively been fed dry dog food pellets. However, the owner also reported that on the morning prior to transportation to Iceland, the dog was allowed to move freely in a grassland area where rabbits are common and heaps of their faeces are present. Furthermore, the owner confirmed that the dog consumed rabbit faeces that morning.
CONCLUSIONS: It is believed that this coprophagic behaviour can explain the detection of rabbit eimerids in the dog\'s faeces, and that such behaviour must be taken into consideration by veterinarians and other diagnostic personnel when they detect atypical cysts or eggs during coprological examinations.
METHODS: In May 2019 unsporulated oocysts were detected in faeces from a 7-year-old household dog that had been imported from Sweden. Most of the oocysts studied strongly resembled those of Eimeria canis Wenyon, 1923. As this species is not valid, the purpose of the present article was to identify the correct species and examine their possible origin. Studies confirmed the presence of two distinct unsporulated oocyst morphotypes in the faeces; measurements and photomicrographs confirmed their identification as Eimeria magna Pérard, 1925 and Eimeria stiedai (Lindemann, 1865) Kisskalt and Hartmann, 1907, both common parasites of European rabbits, Oryctolagus cuniculus (L., 1758). When the owner of the dog was questioned about the food administrated to the dog prior to its import to Iceland, it turned out that it had exclusively been fed dry dog food pellets. However, the owner also reported that on the morning prior to transportation to Iceland, the dog was allowed to move freely in a grassland area where rabbits are common and heaps of their faeces are present. Furthermore, the owner confirmed that the dog consumed rabbit faeces that morning.
CONCLUSIONS: It is believed that this coprophagic behaviour can explain the detection of rabbit eimerids in the dog\'s faeces, and that such behaviour must be taken into consideration by veterinarians and other diagnostic personnel when they detect atypical cysts or eggs during coprological examinations.
摘要：
背景：所有进口到冰岛的狗在进入该国之前必须在特殊站进行强制检疫。从该站中狗经过的第一个粪便中收集粪便样品，随后检查肠道寄生虫阶段的存在。
方法：2019年5月，在从瑞典进口的7岁家犬的粪便中检测到未形成孢子的卵囊。研究的大多数卵囊与犬埃美球虫Wenyon的卵囊非常相似，1923.因为这个物种无效，本文的目的是确定正确的物种并检查其可能的来源。研究证实粪便中存在两种不同的未孢子形成的卵囊形态类型；测量和显微照片证实了它们被鉴定为艾美球虫大Pérard，1925年和艾美球虫stiedai(Lindemann,1865）基斯卡尔特和哈特曼，1907年，欧洲兔子的两种常见寄生虫，小龙(L.,1758).当狗的主人被问及在进口到冰岛之前管理给狗的食物时，原来它只喂干狗粮颗粒。然而,店主还报告说，在前往冰岛的运输前的早上，这只狗被允许在草原地区自由活动，那里兔子很常见，粪便堆积如山。此外，主人证实，这只狗那天早上吃了兔子的粪便。
结论：人们认为这种共传行为可以解释在狗的粪便中检测到兔eimerids，兽医和其他诊断人员在检查中发现非典型囊肿或卵子时，必须考虑这种行为。
方法：2019年5月，在从瑞典进口的7岁家犬的粪便中检测到未形成孢子的卵囊。研究的大多数卵囊与犬埃美球虫Wenyon的卵囊非常相似，1923.因为这个物种无效，本文的目的是确定正确的物种并检查其可能的来源。研究证实粪便中存在两种不同的未孢子形成的卵囊形态类型；测量和显微照片证实了它们被鉴定为艾美球虫大Pérard，1925年和艾美球虫stiedai(Lindemann,1865）基斯卡尔特和哈特曼，1907年，欧洲兔子的两种常见寄生虫，小龙(L.,1758).当狗的主人被问及在进口到冰岛之前管理给狗的食物时，原来它只喂干狗粮颗粒。然而,店主还报告说，在前往冰岛的运输前的早上，这只狗被允许在草原地区自由活动，那里兔子很常见，粪便堆积如山。此外，主人证实，这只狗那天早上吃了兔子的粪便。
结论：人们认为这种共传行为可以解释在狗的粪便中检测到兔eimerids，兽医和其他诊断人员在检查中发现非典型囊肿或卵子时，必须考虑这种行为。
