阿拉斯加圣保罗岛上亚成年雄性北海狗（Callorhinus ursinus）胃内的蛔线虫类线虫及其相关病变：（1987 - 1999年）
Ascaridoid nematodes and associated lesions in stomachs of subadult male northern fur seals (Callorhinus ursinus) on St. Paul Island, Alaska: (1987-1999).
作者信息
Spraker T R, Lyons E T, Tolliver S C, Bair H D
机构信息
Veterinary Diagnostic Laboratory, Department of Pathology, College of Veterinary Medicine, Colorado State University, Fort Collins, CO 80523, USA.
出版信息
J Vet Diagn Invest. 2003 Sep;15(5):432-7. doi: 10.1177/104063870301500505.
Stomachs from subadult male northern fur seals (SAMs) (Callorhinus ursinus) (n = 5,950) from St. Paul Island, Alaska, were examined from 1987 to 1999 for lesions and parasites. On gross examination of these stomachs, parasite nodules were evident in 92% of the stomachs and active and healing ulcers were found in 14% and 10%, respectively. Prevalence of nematodes from 1987 to 1997 was 88% for 5,700 SAMs for which numbers of parasites were estimated but not identified to the genus level. All nematodes recovered from 250 SAMs examined in 1998 (n = 124; 99% infected) and in 1999 (n = 126; 91% infected) were identified and counted. Prevalences in 1998 and 1999 were 5% and 0% for Anisakis spp., 52% and 18% for Contracaecum spp., and 96% and 89% for Pseudoterranova spp., respectively.
1987年至1999年期间，对来自阿拉斯加圣保罗岛的未成年雄性北海狗（Callorhinus ursinus）（n = 5950）的胃部进行了检查，以确定是否存在病变和寄生虫。在对这些胃部进行大体检查时，92%的胃部可见寄生虫结节，分别有14%和10%的胃部发现了活动性溃疡和愈合中的溃疡。1987年至1997年期间，对5700只未成年雄性北海狗的线虫感染率进行了估算，但未鉴定到属的水平，感染率为88%。对1998年检查的250只未成年雄性北海狗（n = 124；99%感染）和1999年检查的250只未成年雄性北海狗（n = 126；91%感染）体内回收的所有线虫进行了鉴定和计数。1998年和1999年，异尖线虫属的感染率分别为5%和0%，对盲囊线虫属的感染率分别为52%和18%，对新海兽蛔线虫属的感染率分别为96%和89%。
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