Congenital multiple ocular defects with falciform retinal folds among Japanese black cattle
Congenital multiple ocular defects with falciform retinal folds among Japanese black cattle
复制标题
DOI：
10.1354/vp.43-6-1017
复制
发表时间：
2006-11-01
影响因子：
2.4
通讯作者：
Tateyama, S.
中科院分区：
文献类型：
--
作者：
Uchida, K.;Kunieda, T.;Tateyama, S.
为了阐明最近在九州南部日本黑牛中发生的眼部疾病的形态学特征，对3头11 ~ 20月龄的日本黑牛（1 ~ 3号牛）的6个球体进行了病理检查。1号和2号母牛是由同一只日本黑公牛所生，3号母牛是由前一头公牛的祖先（父亲）所生。除1号牛左眼外，其余眼损病理相似。5例眼球病变表现为小眼、晶状体发育不全和/或发育不良；初级玻璃体的持久性；视网膜发育不良，完全无附着。1号牛左侧眼球无晶状体，视网膜严重发育不全，无附着。由于形成月牙形皱褶和中心柱的发育不良视网膜病变是眼睛最典型的特征，因此伴有先天性不附着的镰状视网膜皱褶是最可能的疾病实体。虽然目前的研究还不能明确眼部疾病的原因，但怀疑是公牛及其祖先的遗传性眼部缺陷。
To clarify the morphologic features of the ocular disease recently occurring among Japanese Black cattle in southern Kyushu, 6 globes from 3 Japanese Black cattle, between 11 and 20 months old (cow Nos. 1 to 3), were pathologically examined. Cow Nos. 1 and 2 were sired by the same Japanese Black bull, and cow No. 3 was sired by the ancestor (sire) of the former bull. The ocular lesions were pathologically similar to each other, except for the left eye of cow No. 1. The ocular lesions of 5 globes were characterized by microphthalmia, hypoplasia, and/or dysplasia of the lenses; persistence of the primary vitreous; and retinal dysplasia with total nonattachment. The left globe from cow No. 1 had no lens and severe hypoplasia and nonattachment of the retina. Because dysplastic retinal lesions that formed crescentic folds and a central column were the most characteristic features of the eyes, the falciform retinal fold with congenital nonattachment was the most likely disease entity. Although the cause of the ocular disease could not be clarified with the present study, an inherited ocular defect of the bull and its ancestor was suspected.