fungous infection to saprolegnia is the most important difficulties at the egg of acipenser persicus which is controlled by malachite green as an effective structure . because of the effects and adverse imposition on human and various fish, its use has been avoided in most of the world more than two decades approximately. this study was aimed to compare the antifungal effect of zinc oxid nano p...

Evening: Yellow Ointment (Ung. Hydrarg. Oxid. Flav. 2 per cent.) 2nd day, morning: Yellow Ointment. Evening: Yellow ointment. 3rd day, morning: Yellow Ointment. Evening: Zinc Sulph. and Ichthyol Ointment (\ per cent. each). 4th day, Operation. If there is discharge, we continue the yellow ointment until it ceases and the eye is fit for operation. Usually after three or four days, the eye is fre...