BY-F剑尾鱼白内障的观察

目的了解BY-F近交剑尾鱼白内障的发展及其对剑尾鱼生存的影响。方法观察眼球出现混浊的剑尾鱼,定期观察眼球病变的发展情况以及眼病引起的外部形态和行为的变化;对病鱼的眼球等进行组织病理观察。结果病鱼一般体色晦暗,眼球可见不同程度的圆环状浑浊,后期发展有角膜表面出现红色增生物等现象;组织病理观察发现,其主要病变在晶状体。结论所发现的剑尾鱼眼睛疾患为白内障;剑尾鱼的白内障后期发展可导致其他眼睛疾病并发症;BY-F剑尾鱼是白内障的易发群体。

Observation of Cataract in BY-F Swordtail Fish Xiphophorus helleri

Objective To explore the cataract development and its influence on the living status of BY-F swordtail fish.Methods To notice the development of opaque appearance in the eyes of swordtail fish and to examine the external appearance and behavior changes of the blind fish.The eyeballs were taken at different development stage of the disorder and examined by histopathology.Results The blind fish often became dark-colored.Varying opacities were seen in the fish eyes.Red hyperplastic lesions covering the cornea surface were found in some blind fishes.Most pathological changes were found in the lens.Conclusion The blind fish were suffering from cataract.The cataract can cause other eye complications in BY-F swordtail fish.The BY-F swordtail fish are susceptible to develop cataract.